VAN KAMPEN U S GOVERNMENT TRUST FOR INCOME
N-30D, 2000-11-27
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<PAGE>   1

<TABLE>
<S>                                        <C>
                         Table of Contents

                                  OVERVIEW
                    LETTER TO SHAREHOLDERS       1
                         ECONOMIC SNAPSHOT       2

                       PERFORMANCE SUMMARY
                         RETURN HIGHLIGHTS       4
            GROWTH OF A $10,000 INVESTMENT       6

                     PORTFOLIO AT A GLANCE
             TWELVE-MONTH DIVIDEND HISTORY       7
                          ASSET ALLOCATION       7
                       COUPON DISTRIBUTION       7
          Q&A WITH YOUR PORTFOLIO MANAGERS       8
                         GLOSSARY OF TERMS      11

                            BY THE NUMBERS
                   YOUR FUND'S INVESTMENTS      12
                      FINANCIAL STATEMENTS      14
             NOTES TO FINANCIAL STATEMENTS      20
            REPORT OF INDEPENDENT AUDITORS      29

                          VAN KAMPEN FUNDS
            THE VAN KAMPEN FAMILY OF FUNDS      30
     FUND OFFICERS AND IMPORTANT ADDRESSES      31
</TABLE>

Our generations of money-management experience may help you pursue life's true
wealth.
              NOT FDIC INSURED  MAY LOSE VALUE  NO BANK GUARANTEE
<PAGE>   2

 OVERVIEW

LETTER TO SHAREHOLDERS
October 20, 2000

Dear Shareholder,

The first three quarters of 2000 proved to be especially volatile, with all of
the major markets declining in the spring and spending the following months
trying to recover. To manage one's portfolio during such unpredictable times
requires investment-management experience, and the following pages should give
you some insight into how we have performed in this difficult environment.

In this report, the portfolio managers will explain how your investment
performed during the reporting period and describe the strategies they used to
manage your fund during that span. The report will also show you how your
investment has performed over time. Helpful charts summarize the fund's largest
investments, and you can examine the complete portfolio to see all of your
fund's holdings as of the end of your fund's reporting period.

                  At Van Kampen, we place a high priority on providing you and
                  your financial advisor with the information you need to help
                  you monitor your investments during all types of markets. With
                  nearly four generations of investment-management experience,
                  we've been around long enough to understand that by investing
with Van Kampen you're entrusting us with much more than your money. Your
investments may help make it possible to afford your next house, keep up with
rising college costs, or enjoy a comfortable retirement.

No matter what your reasons for investing, we're thankful that you've chosen to
place your investments with Van Kampen. We will continue to apply our
generations of money-management experience to helping you pursue life's true
wealth.

Sincerely,

[SIG]
Richard F. Powers, III
President and CEO
Van Kampen Investments

                                        1
<PAGE>   3

ECONOMIC SNAPSHOT

ECONOMIC GROWTH
ECONOMIC GROWTH WAS STRONG DURING THE REPORTING PERIOD, UNDERPINNED BY LOW
UNEMPLOYMENT AND RISING PRODUCTIVITY, YET THERE WERE SIGNS THAT A HEALTHY
SLOWDOWN WAS UNDERWAY. GROSS DOMESTIC PRODUCT, THE PRIMARY MEASURE OF ECONOMIC
GROWTH, INCREASED AT A 2.7 PERCENT ANNUALIZED RATE FOR THE THIRD QUARTER OF
2000. FOLLOWING MILD FIRST- AND SECOND-QUARTER DATA, THIS THIRD-QUARTER FIGURE
OFFERS FURTHER EVIDENCE THAT GROWTH MIGHT BE SETTLING BACK TO A MORE MODERATE
AND SUSTAINABLE PACE THAN ITS RAPID RATE IN LATE 1999.

CONSUMER SPENDING AND EMPLOYMENT
CONCERNS ABOUT INFLATION REMAINED AT BAY DUE IN PART TO A GRADUAL SLOWDOWN IN
CONSUMER SPENDING. RISING INTEREST RATES, HIGHER ENERGY COSTS, AND A
DISAPPOINTING STOCK MARKET BEGAN TO TEMPER RETAIL SALES, WHICH LEVELED OFF FROM
THE BLISTERING PACE OF LATE 1999 AND EARLY 2000. AND WHILE CONSUMER SPENDING WAS
BRISK, THE OVERALL TREND HAS BEEN DOWNWARD THIS YEAR.

THE JOBLESS RATE CONTINUED TO BE EXTREMELY LOW BY HISTORICAL STANDARDS, BUT
RECENT CUTS IN MANUFACTURING PAYROLLS SUPPORT THE POPULAR BELIEF THAT THE
ECONOMY IS MODERATING. ALTHOUGH EMPLOYER COSTS SUCH AS WAGES AND BENEFITS WERE
RISING AT THE END OF 1999 AND IN THE BEGINNING OF 2000, OVER THE PAST SIX MONTHS
THE EMPLOYMENT COST INDEX HAS SHOWN MARKED DECELERATION, WHICH SHOULD HELP EASE
INFLATION CONCERNS.

INTEREST RATES AND INFLATION
THE FEDERAL RESERVE BOARD (THE FED) RAISED INTEREST RATES FOUR TIMES DURING THE
LAST 12 MONTHS IN AN EFFORT TO WARD OFF INFLATION BY CURBING ECONOMIC GROWTH.
OVER THE SAME PERIOD, THE CONSUMER PRICE INDEX ROSE 3.5 PERCENT, WHICH INDICATED
THAT INFLATION GENERALLY REMAINS UNDER CONTROL.

THE FED HAS ACKNOWLEDGED THE RISK OF RISING INFLATION AND WILL STAY ON GUARD, AS
RISING ENERGY COSTS AND LOW UNEMPLOYMENT THREATEN TO PROPEL THIS FIGURE UPWARD
IN THE COMING MONTHS. AS LONG AS INFLATION IS CONTAINED AND THE PACE OF ECONOMIC
GROWTH REMAINS FAVORABLE, THE FED IS LIKELY TO HOLD INTEREST RATES STEADY IN THE
SHORT TERM, WHICH COULD HELP STABILIZE THE STOCK AND BOND MARKETS.

                                        2
<PAGE>   4

U.S. GROSS DOMESTIC PRODUCT

SEASONALLY ADJUSTED ANNUALIZED RATES
(September 30, 1998 - September 30, 2000)
[BAR GRAPH]

<TABLE>
<CAPTION>
                                                                      U.S. GROSS DOMESTIC PRODUCT
                                                                      ---------------------------
<S>                                                           <C>
Sep 98                                                                           3.8%
Dec 98                                                                           5.9%
Mar 99                                                                           3.5%
Jun 99                                                                           2.5%
Sep 99                                                                           5.7%
Dec 99                                                                           8.3%
Mar 00                                                                           4.8%
Jun 00                                                                           5.6%
Sep 00                                                                           2.7%
</TABLE>

Source: Bureau of Economic Analysis

INTEREST RATES AND INFLATION

(September 30, 1998 - September 30, 2000)

[LINE GRAPH]

<TABLE>
<CAPTION>
                                                                       INTEREST RATES                       INFLATION
                                                                       --------------                       ---------
<S>                                                           <C>                                <C>
Sep 98                                                                      5.25                               1.50
                                                                            5.00                               1.50
                                                                            4.75                               1.50
Dec 98                                                                      4.75                               1.60
                                                                            4.75                               1.70
                                                                            4.75                               1.60
Mar 99                                                                      4.75                               1.70
                                                                            4.75                               2.30
                                                                            4.75                               2.10
Jun 99                                                                      5.00                               2.00
                                                                            5.00                               2.10
                                                                            5.25                               2.30
Sep 99                                                                      5.25                               2.60
                                                                            5.25                               2.60
                                                                            5.50                               2.60
Dec 99                                                                      5.50                               2.70
                                                                            5.50                               2.70
                                                                            5.75                               3.20
Mar 00                                                                      6.00                               3.70
                                                                            6.00                               3.00
                                                                            6.50                               3.10
Jun 00                                                                      6.50                               3.70
                                                                            6.50                               3.70
                                                                            6.50                               3.30
Sep 00                                                                      6.50                               3.50
</TABLE>

Interest rates are represented by the closing midline federal funds target rate
on the last day of each month. Inflation is indicated by the annual percent
change of the Consumer Price Index for all urban consumers at the end of each
month.

                                        3
<PAGE>   5

       PERFORMANCE SUMMARY

RETURN HIGHLIGHTS

(as of September 30, 2000)

<TABLE>
<CAPTION>
                                        A SHARES   B SHARES     C SHARES
--------------------------------------------------------------------------
<S>                                     <C>        <C>          <C>      <C>
One-year total return based on NAV(1)      5.82%      5.00%      5.00%
--------------------------------------------------------------------------
One-year total return(2)                    .76%      1.04%      4.01%
--------------------------------------------------------------------------
Five-year average annual total
return(2)                                  4.10%      4.10%      4.33%
--------------------------------------------------------------------------
Life-of-Fund average annual total
return(2)                                  4.45%(3)  4.44%(3,4)   3.86%
--------------------------------------------------------------------------
Commencement date                       10/06/92     10/06/92   04/12/93
--------------------------------------------------------------------------
Distribution rate(5)                       6.48%      6.02%      6.02%
--------------------------------------------------------------------------
SEC Yield(6)                               5.60%      5.12%      5.12%
--------------------------------------------------------------------------
</TABLE>

(1) Assumes reinvestment of all distributions for the period and does not
    include payment of the maximum sales charge (4.75% for Class A Shares) or
    contingent deferred sales charge ("CDSC"). On purchases of Class A Shares of
    $1 million or more, a CDSC of 1% may be imposed on certain redemptions made
    within one year of purchase. Returns for Class B Shares are calculated
    without the effect of the maximum 4% CDSC, charged on certain redemptions
    made within one year of purchase and declining to 0% after the fifth year.
    Returns for Class C Shares are calculated without the effect of the maximum
    1% CDSC, charged on certain redemptions made within one year of purchase. If
    the sales charges were included, total returns would be lower. These returns
    do include Rule 12b-1 fees of up to .25% for Class A Shares and 1% for Class
    B and Class C Shares.

(2) Standardized total return. Assumes reinvestment of all distributions for the
    period and includes payment of the maximum sales charge (4.75% for Class A
    Shares) or contingent deferred sales charge ("CDSC") for Class B and C
    Shares and Rule 12b-1 fee. On purchases of Class A Shares of $1 million or
    more, a CDSC of 1% may be imposed on certain redemptions made within one
    year of purchase. Returns for Class B Shares are calculated with the effect
    of the maximum 4% CDSC, charged on certain redemptions made within one year
    of purchase and declining to 0% after the fifth year. Returns for Class C
    Shares are calculated with the effect of the maximum 1% CDSC, charged on
    certain redemptions made within one year of purchase. The Rule 12b-1 fee for
    Class A Shares is up to .25% and for Class B and C Shares is 1%.

(3) Total return from November 2, 1992 (date the Fund's investment strategy was
    implemented) through the end of the period.

(4) The total return reflects the conversion of Class B Shares into Class A
    Shares six years after the end of the calendar month in which the shares
    were purchased. See Footnote 3 in the Notes to Financial Statements for
    additional information.

(5) Distribution rate represents the monthly annualized distributions of the
    Fund at the end of the period and not the earnings of the Fund.

(6) SEC Yield is a standardized calculation prescribed by the Securities and
    Exchange Commission for determining the amount of net income a portfolio
    should theoretically generate for the 30-day period ending September 30,
    2000.

                                        4
<PAGE>   6

    An investment in the Fund is subject to investment risks, and you could lose
    money on your investment in the Fund. Please review the Risk/Return Summary
    of the Prospectus for further details on investment risks. Fund shares, when
    redeemed, may be worth more or less than their original cost. Past
    performance is no guarantee of future results. Investment return and net
    asset value will fluctuate with market conditions.

    U.S. Government securities are backed by the full faith and credit of the
    U.S. Government, its agencies or instrumentalities. The government backing
    applies only to the timely payment of principal and interest when due, on
    specific securities in the Fund's portfolio, not to shares of the Fund. The
    value of debt securities will fluctuate with changes in market conditions
    and interest rates, which will affect the value of Fund shares. Securities
    which are issued by private issuers involve greater risk than those issued
    directly by the U.S. Government. Investments in derivative securities will
    subject the Fund to greater risks.

    Market forecasts provided in this report may not necessarily come to pass.

                                        5
<PAGE>   7

GROWTH OF A $10,000 INVESTMENT

(November 2, 1992--September 30, 2000)

 [INVESTMENT PERFORMANCE GRAPH]

<TABLE>
<CAPTION>
                                                                 U.S. GOVERNMENT TRUST FOR       MERRILL LYNCH INTERMEDIATE TERM
                                                                        INCOME FUND*                  U.S. GOVERNMENT INDEX+
                                                                 -------------------------       -------------------------------
<S>                                                           <C>                                <C>
11/92                                                                     10000.00                           10000.00
                                                                           9651.00                           10132.00
                                                                           9984.00                           10515.00
                                                                          10144.00                           10718.00
9/93                                                                      10296.00                           10951.00
                                                                          10297.00                           10960.00
                                                                           9970.00                           10759.00
                                                                           9831.00                           10705.00
9/94                                                                       9903.00                           10784.00
                                                                           9886.00                           10774.00
                                                                          10360.00                           11223.00
                                                                          10831.00                           11753.00
9/95                                                                      10989.00                           11937.00
                                                                          11419.00                           12346.00
                                                                          11202.00                           12253.00
                                                                          11202.00                           12327.00
9/96                                                                      11361.00                           12536.00
                                                                          11674.00                           12826.00
                                                                          11614.00                           12822.00
                                                                          11977.00                           13178.00
9/97                                                                      12301.00                           13516.00
                                                                          12601.00                           13821.00
                                                                          12767.00                           14035.00
                                                                          12982.00                           14292.00
9/98                                                                      13516.00                           14980.00
                                                                          13464.00                           15014.00
                                                                          13407.00                           14963.00
                                                                          13265.00                           14934.00
9/99                                                                      13334.00                           15099.00
                                                                          13266.00                           15096.00
                                                                          13619.00                           15359.00
                                                                          13782.00                           15640.00
9/00                                                                      14110.00                           16027.00
</TABLE>

Fund's Total Return
1 Year Total Return  0.76%
5 Year Avg. Annual  4.10%
Inception Avg. Annual  4.45%

This chart compares your fund's performance to that of the Merrill Lynch
Intermediate Term U.S. Government Index over time.

This index is an unmanaged broad-based, statistical composite that does
not include any commissions or fees that would be paid by an investor
purchasing the securities it represents. Such costs would lower the
performance of this index. The historical performance of the index is
shown for illustrative purposes only; it is not meant to forecast, imply,
or guarantee the future performance of any investment vehicle. It is not
possible to invest directly in an index.

The above chart reflects the performance of Class A shares of the fund. The
performance of Class A shares will differ from that of other share classes of
the fund because of the difference in sales charges and/or expenses paid by
shareholders investing in the different share classes. The fund's performance
assumes reinvestment of all distributions, and includes payment of the maximum
sales charge (4.75% for Class A shares) and an annual 12b-1 fee of up to 0.25
percent.

                                        6

While past performance is no guarantee of future results, the above information
provides a broader vantage point from which to evaluate the discussion of the
fund's performance found in the following pages. As a result of recent market
activity, current performance may vary from the figures shown.

Source:

* Hypo(R) Provided by Towers Data, Bethesda, MD

(+) Wiesenberger(R), a Thomson Financial company

                                        7
<PAGE>   8

                                                 PORTFOLIO AT A GLANCE

TWELVE-MONTH DIVIDEND HISTORY

(for the period ended September 30, 2000)
[BAR GRAPH]

<TABLE>
<CAPTION>
                                                                               DIVIDENDS
                                                                               ---------
<S>                                                           <C>
10/99                                                                           0.0435
11/99                                                                           0.0435
12/99                                                                           0.0435
1/00                                                                            0.0435
2/00                                                                            0.0435
3/00                                                                            0.0435
4/00                                                                            0.0435
5/00                                                                            0.0435
6/00                                                                            0.0435
7/00                                                                            0.0435
8/00                                                                            0.0435
9/00                                                                            0.0435
</TABLE>

The dividend history represents past performance of the fund's Class A shares
and is no guarantee of the fund's future dividends.

ASSET ALLOCATION

(as a percentage of long-term investments)
[BAR GRAPH]

<TABLE>
<CAPTION>
                                                                     SEPTEMBER 30, 2000                 SEPTEMBER 30, 1999
                                                                     ------------------                 ------------------
<S>                                                           <C>                                <C>
Treasury/Agency                                                            37.40                              46.30
FNMA                                                                       23.00                              13.80
FHLMC                                                                      16.50                               7.30
GNMA                                                                        9.50                              15.60
CMO                                                                         7.10                              10.20
Asset Backed                                                                6.50                               6.80
</TABLE>

COUPON DISTRIBUTION

(as a percentage of long-term investments--September 30, 2000)
[BAR GRAPH]

<TABLE>
<CAPTION>
                                                                          COUPON DISTRIBUTION
                                                                          -------------------
<S>                                                           <C>
6-6.9%                                                                           28.90
7-7.9%                                                                           37.10
8-8.9%                                                                            4.70
9-9.9%                                                                            8.90
10% or more                                                                      20.40
</TABLE>

                                        7
<PAGE>   9

                                                                         [PHOTO]

Q&A WITH YOUR PORTFOLIO MANAGERS

WE RECENTLY SPOKE WITH THE MANAGEMENT TEAM OF THE VAN KAMPEN U.S.
GOVERNMENT TRUST FOR INCOME ABOUT THE KEY EVENTS AND ECONOMIC FORCES THAT SHAPED
THE MARKETS AND INFLUENCED THE FUND'S RETURN DURING THE 12 MONTHS ENDED
SEPTEMBER 30, 2000. THE TEAM IS LED BY TED MUNDY, SENIOR PORTFOLIO MANAGER, WHO
HAS MANAGED THE FUND SINCE 1994 AND HAS WORKED IN THE INVESTMENT INDUSTRY SINCE
1987. THE FOLLOWING DISCUSSION REFLECTS HIS VIEWS ON THE FUND'S PERFORMANCE.

Q   HOW WOULD YOU CHARACTERIZE
    THE MARKET CONDITIONS IN WHICH THE FUND OPERATED, AND HOW DID THE FUND
    PERFORM IN THAT ENVIRONMENT?

A   During the reporting period, the
market for government securities was influenced primarily by three key market
events. First, concerns about the much-anticipated year 2000 transition created
a tentative market environment for much of late 1999. This resulted in interest
rates moving in a narrow range, while yield spreads slowly recovered from
unusually wide levels. Secondly, consumer activity picked up after year 2000
concerns abated, and as the U.S. economy gained momentum, the Federal Reserve
Board continued raising interest rates to fight growing inflationary risks.
Lastly, as the Fed's aggressive actions put upward pressure on short-term
interest rates, the Treasury announced a buyback program for 30-year Treasury
bonds. The combination of Fed interest rate hikes and a perceived shortage of
long-term bonds created a negative or "inverted" yield curve--where yields on
long-term securities were lower than their short-term counterparts. This allowed
longer-term Treasuries to outperform and led to lesser performance from mortgage
securities during the spring of 2000.

    The curve inversion peaked in May as the Fed raised rates by a final 0.50
percent. Following this event, a series of reports indicated that economic
growth was moderating, and market sentiment began to improve. Rates subsequently
began to fall as the Fed felt less need to adjust policy further.

    The fund's performance was consistently strong during these events,
outperforming its peer group for most of the reporting period. For the 12-month
period ended September 30, 2000, the fund generated a total return of 5.82
percent (Class A shares at net asset value; if the maximum sales charge of 4.75
percent were included, the return would have been lower). Of course, past
performance is no guarantee of future results. As a result of recent market
activity, current performance may vary from the figures shown. By comparison,
the Merrill

                                        8
<PAGE>   10

Lynch Intermediate Term U.S. Government
Index posted a total return of 6.17 percent for the same period. This
broad-based, unmanaged index, which reflects the general performance of
government securities with maturities between one and ten years, does not
reflect any commissions or fees that would be paid by an investor purchasing the
securities it represents. Such costs would lower the performance of the index.
It is not possible to invest directly in an index. For additional performance
results, please refer to the chart and footnotes on page 4.

Q   WHAT HAPPENED TO MORTGAGE-
    BACKED SECURITIES DURING THIS TIME?

A   Early in the reporting period, the
yield spread between 10-year Treasury notes and mortgages narrowed, indicating
that mortgage securities were outperforming Treasuries. In mid-January, however,
spreads widened amid fears that the Treasury's buyback program would severely
limit the supply of long-term Treasury securities--driving Treasury bond prices
up and yields down. Because mortgage prices remained relatively stable during
this time, the mortgage market underperformed relative to Treasuries. Possible
legislation affecting the credit status of Fannie Mae and Freddie Mac securities
created a negative tone for this sector as well.

    Approaching mid-year, we began to see a shift toward more positive market
sentiment once again. The Fed appeared to be finished raising interest rates,
mortgage-backed securities remained stable while yield spreads stayed narrow,
and the reporting period ended with yield spreads at levels similar to where
they were a year ago. This environment allowed mortgages to perform well for the
reporting period overall.

Q   WHAT WERE YOUR STRATEGIES FOR
    MANAGING THE FUND, AND HOW DID THEY CONTRIBUTE TO ITS PERFORMANCE DURING
    THIS PERIOD?

A   The fund's bias toward mortgage
securities benefited when mortgages outperformed Treasuries early in the
reporting period. Soon after, we began reducing the fund's mortgage exposure in
early 2000 to help insulate the fund from that sector's underperformance as
spreads widened.

    Throughout the period, fund performance was aided by favorable security
selection, as the fund maintained significant exposure to non-agency securities
(securities not issued by U.S. government-related agencies) which suffered less
than agency securities when yield spreads widened. In late May, some of these
non-agency holdings were sold and the proceeds were invested in agency mortgage
securities, which were then at their widest spread levels and lowest prices
during the reporting period. At the same time, we began purchasing agency debt
holdings to increase the fund's exposure to the non-Treasury sector. The fund
held on to the remaining mortgage-backed and agency note positions. This proved
fortuitous as these sectors ended the fiscal year with improving performance.

                                        9
<PAGE>   11

    We maintained the fund's neutral duration throughout the reporting period.
Duration, which is expressed in years, is a measurement of a bond's price
sensitivity to changes in interest rates. Near the beginning of 2000, we reduced
the fund's exposure to shorter-term securities in order to avoid the negative
effects of the yield curve inversion. We subsequently evened out the fund's
exposure across the maturity spectrum in the summer months, feeling the curve
inversion had likely run its course and could begin to flatten.

Q   WHAT IS YOUR OUTLOOK FOR THE
    FUND IN THE MONTHS AHEAD?

A   Clearly, we hope to see some
positive shifts toward the government securities market as indicators point to
slowing economic growth in the months ahead. The housing and manufacturing
sectors have cooled, consumer spending has leveled off from last year's pace,
and inflation is still modest. Oil prices have increased considerably, which
historically has been associated with slowing economic growth. We also believe
that the Fed is unlikely to raise interest rates during the presidential
election campaign. These trends all signal the probable end of interest-rate
hikes for the near term. We believe this should create a positive environment
for the fixed-income market as a whole.

                                       10
<PAGE>   12

GLOSSARY OF TERMS

A HELPFUL GUIDE TO SOME OF THE COMMON TERMS YOU'RE LIKELY TO SEE IN THIS REPORT
AND OTHER FINANCIAL PUBLICATIONS.

DURATION: A measure of the sensitivity of a bond's price to changes in interest
rates, expressed in years. Each year of duration represents an expected 1
percent change in the price of a bond for every 1 percent change in interest
rates. The longer a bond's duration, the greater the effect of interest-rate
movements on its price. Typically, funds with shorter durations perform better
in rising-rate environments, while funds with longer durations perform better
when rates decline.

FEDERAL RESERVE BOARD (THE FED): The governing body of the Federal Reserve
System, which is the central bank of the United States. Its policy-making
committee, called the Federal Open Market Committee, meets at least eight times
a year to establish monetary policy and monitor the economic pulse of the United
States.

INFLATION: A persistent and measurable rise in the general level of prices.
Inflation is widely measured by the Consumer Price Index, an economic indicator
that measures the change in the cost of purchased goods and services.

MATURITY LENGTH: The time it takes for a bond to mature. A bond issued in 1999
and maturing in 2009 is a 10-year bond. Typically, short-term bonds mature in
five years or less, intermediate-term bonds mature in five to ten years, and
long-term bonds mature after ten years.

MORTGAGE-BACKED SECURITIES: Securities backed by pools of similar mortgages.
These securities are generally issued by agencies of the U.S. government, such
as Government National Mortgage Association (GNMA, or "Ginnie Mae") and Federal
Home Loan Mortgage Corporation (FHLMC, or "Freddie Mac").

YIELD CURVE: The pattern that results from viewing the yields of U.S. Treasury
securities maturing in 1, 5, 10, and 30 years. When grouped together and
graphed, a pattern of increasing yield is often reflected as the time to
maturity extends. This pattern creates an upward sloping "curve." A "flat" yield
curve represents little difference between short- and long-term interest rates.

YIELD SPREAD: The additional yield investors can earn by either investing in
bonds with longer maturities or by investing in bonds with lower credit ratings.
The spread is the difference in yield between bonds with short versus long
maturities or the difference in yield between high-quality bonds and
lower-quality bonds.

                                       11
<PAGE>   13

                        BY THE NUMBERS

YOUR FUND'S INVESTMENTS

September 30, 2000
THE FOLLOWING PAGES DETAIL YOUR FUND'S PORTFOLIO OF INVESTMENTS AT THE END OF
THE REPORTING PERIOD.

<TABLE>
<CAPTION>
PAR
AMOUNT                                                                         MARKET
(000)     DESCRIPTION                        COUPON         MATURITY            VALUE
<C>       <S>                                <C>      <C>                    <C>
          ASSET-BACKED SECURITIES  6.3%
$3,409    Norwest Asset Securities Corp.,
          Series 1997-19 (a)................ 7.250%   12/25/27               $ 3,272,483
 2,603    Merrill Lynch Mortgage
          Investments, Inc.................. 6.880    12/25/27                 2,594,164
                                                                             -----------
          TOTAL ASSET-BACKED SECURITIES...................................     5,866,647
                                                                             -----------
          COLLATERALIZED MORTGAGE OBLIGATIONS  6.9%
 6,908    Residential Funding Mortgage
          Securities Investment, Series
          1998-S20 M1 (a)................... 6.750    09/25/28                 6,363,574
                                                                             -----------

          UNITED STATES GOVERNMENT AGENCY OBLIGATIONS  47.7%
 6,727    Federal Home Loan Mortgage Corp.
          Gold 30 Year Pool................. 6.500    02/01/26 to 05/01/26     6,506,308
 8,200    Federal Home Loan Mortgage
          Corp.............................. 7.000    02/15/03 to 07/15/05     8,313,222
 4,074    Federal National Mortgage
          Association CMO, Series 94-87F
          (a)............................... 7.106    03/25/09                 4,079,601
 1,100    Federal National Mortgage
          Association....................... 7.250    05/15/30                 1,156,441
 3,812    Federal National Mortgage
          Association Pool.................. 6.000    04/01/14 to 07/01/14     3,669,033
 2,952    Federal National Mortgage
          Association Pool.................. 6.500    06/01/29 to 10/01/29     2,835,840
 6,317    Federal National Mortgage
          Association Pool.................. 7.000    08/01/14 to 02/01/30     6,233,374
 1,909    Federal National Mortgage
          Association Pool.................. 7.500    03/01/15 to 06/01/15     1,925,399
   756    Federal National Mortgage
          Association Pool.................. 8.500    01/01/22 to 09/01/24       777,100
 4,203    Government National Mortgage
          Association Pool.................. 7.500    06/15/28 to 08/15/28     4,218,205
</TABLE>

                                               See Notes to Financial Statements

                                       12
<PAGE>   14

YOUR FUND'S INVESTMENTS

September 30, 2000

<TABLE>
<CAPTION>
PAR
AMOUNT                                                                         MARKET
(000)     DESCRIPTION                        COUPON         MATURITY            VALUE
<C>       <S>                                <C>      <C>                    <C>
$2,175    Government National Mortgage
          Association Pool.................. 8.000%   11/15/21 to 08/15/24   $ 2,219,276
 2,014    Government National Mortgage
          Association Pool.................. 9.000    04/15/18 to 12/15/19     2,121,858
                                                                             -----------
          TOTAL UNITED STATES GOVERNMENT AGENCY OBLIGATIONS...............    44,055,657
                                                                             -----------
          UNITED STATES TREASURY OBLIGATIONS  36.5%
 3,500    United States Treasury Bonds...... 7.625    02/15/25                 4,181,345
 1,000    United States Treasury Bonds...... 8.750    05/15/17                 1,272,000
 4,500    United States Treasury Bonds...... 9.000    11/15/18                 5,904,585
16,000    United States Treasury Bonds......11.625    11/15/02 to 11/15/04    18,325,400
 4,000    United States Treasury Bonds...... 6.625    03/31/02                 4,026,960
                                                                             -----------
          TOTAL UNITED STATES TREASURY OBLIGATIONS........................    33,710,290
                                                                             -----------
TOTAL LONG-TERM INVESTMENTS  97.4%
  (Cost $91,691,340)......................................................    89,996,168
REPURCHASE AGREEMENT  1.7%
  State Street Bank & Trust ($1,580,000 par collateralized by U.S.
  Government obligations in a pooled cash account, dated 09/29/00, to be
  sold on 10/02/00 at $1,580,843) (Cost $1,580,000).......................     1,580,000
                                                                             -----------
TOTAL INVESTMENTS  99.1%
  (Cost $93,271,340)......................................................    91,576,168

OTHER ASSETS IN EXCESS OF LIABILITIES  0.9%...............................       797,433
                                                                             -----------
NET ASSETS  100.0%........................................................   $92,373,601
                                                                             ===========
</TABLE>

(a) Assets segregated as collateral for open futures transactions.

See Notes to Financial Statements

                                       13
<PAGE>   15

FINANCIAL STATEMENTS
Statement of Assets and Liabilities
September 30, 2000

<TABLE>
<S>                                                           <C>
ASSETS:
Total Investments (Cost $93,271,340)........................  $ 91,576,168
Receivables:
  Interest..................................................     1,750,537
  Fund Shares Sold..........................................        55,825
  Variation Margin on Futures...............................         2,437
Other.......................................................        16,761
                                                              ------------
    Total Assets............................................    93,401,728
                                                              ------------
LIABILITIES:
Payables:
  Fund Shares Repurchased...................................       392,687
  Income Distributions......................................       271,376
  Custodian Bank............................................        55,084
  Distributor and Affiliates................................        53,292
  Investment Advisory Fee...................................        45,597
Trustees' Deferred Compensation and Retirement Plans........       124,685
Accrued Expenses............................................        85,406
                                                              ------------
    Total Liabilities.......................................     1,028,127
                                                              ------------
NET ASSETS..................................................  $ 92,373,601
                                                              ============
NET ASSETS CONSIST OF:
Capital (Par value of $.01 per share with an unlimited
  number of shares authorized)..............................  $151,263,933
Accumulated Undistributed Net Investment Income.............        82,321
Net Unrealized Depreciation.................................    (1,689,864)
Accumulated Net Realized Loss...............................   (57,282,789)
                                                              ------------
NET ASSETS..................................................  $ 92,373,601
                                                              ============
MAXIMUM OFFERING PRICE PER SHARE:
  Class A Shares:
    Net asset value and redemption price per share (Based on
    net assets of $67,938,684 and 8,844,239 shares of
    beneficial interest issued and outstanding).............  $       7.68
    Maximum sales charge (4.75%* of offering price).........           .38
                                                              ------------
    Maximum offering price to public........................  $       8.06
                                                              ============
  Class B Shares:
    Net asset value and offering price per share (Based on
    net assets of $16,716,004 and 2,178,111 shares of
    beneficial interest issued and outstanding).............  $       7.67
                                                              ============
  Class C Shares:
    Net asset value and offering price per share (Based on
    net assets of $7,718,913 and 1,005,759 shares of
    beneficial interest issued and outstanding).............  $       7.67
                                                              ============
</TABLE>

* On sales of $100,000 or more, the sales charge will be reduced.

                                               See Notes to Financial Statements

                                       14
<PAGE>   16

Statement of Operations
For the Year Ended September 30, 2000

<TABLE>
<S>                                                           <C>
INVESTMENT INCOME:
Interest....................................................  $ 8,148,918
                                                              -----------
EXPENSES:
Investment Advisory Fee.....................................      608,128
Distribution (12b-1) and Service Fees (Attributed to Classes
  A, B and C of $167,716, $228,565 and $85,915,
  respectively).............................................      482,196
Shareholder Services........................................      165,228
Trustees' Fees and Related Expenses.........................       53,880
Custody.....................................................       18,304
Legal.......................................................        4,926
Other.......................................................      192,425
                                                              -----------
    Total Expenses..........................................    1,525,087
    Less Credits Earned on Cash Balances....................        4,859
                                                              -----------
    Net Expenses............................................    1,520,228
                                                              -----------
NET INVESTMENT INCOME.......................................  $ 6,628,690
                                                              ===========
REALIZED AND UNREALIZED GAIN/LOSS:
Realized Gain/Loss:
  Investments...............................................  $(5,490,161)
  Futures...................................................       14,671
  Forward Commitments.......................................     (138,176)
                                                              -----------
Net Realized Loss...........................................   (5,613,666)
                                                              -----------
Unrealized Appreciation/Depreciation:
  Beginning of the Period...................................   (5,872,538)
                                                              -----------
  End of the Period:
    Investments.............................................   (1,695,172)
    Futures.................................................        5,308
                                                              -----------
                                                               (1,689,864)
                                                              -----------
Net Unrealized Appreciation During the Period...............    4,182,674
                                                              -----------
NET REALIZED AND UNREALIZED LOSS............................  $(1,430,992)
                                                              ===========
NET INCREASE IN NET ASSETS FROM OPERATIONS..................  $ 5,197,698
                                                              ===========
</TABLE>

See Notes to Financial Statements

                                       15
<PAGE>   17

Statement of Changes in Net Assets
For the Years Ended September 30, 2000 and 1999

<TABLE>
<CAPTION>
                                                    YEAR ENDED            YEAR ENDED
                                                SEPTEMBER 30, 2000    SEPTEMBER 30, 1999
                                                ----------------------------------------
<S>                                             <C>                   <C>
FROM INVESTMENT ACTIVITIES:
Operations:
Net Investment Income.......................       $  6,628,690         $   8,715,590
Net Realized Loss...........................         (5,613,666)           (2,295,907)
Net Unrealized Appreciation/Depreciation
  During the Period.........................          4,182,674            (9,156,086)
                                                   ------------         -------------
Change in Net Assets from Operations........          5,197,698            (2,736,403)
                                                   ------------         -------------

Distributions from Net Investment Income:
  Class A Shares............................         (4,807,626)           (3,378,179)
  Class B Shares............................         (1,385,328)           (4,495,665)
  Class C Shares............................           (520,711)             (655,811)
                                                   ------------         -------------
                                                     (6,713,665)           (8,529,655)
                                                   ------------         -------------

NET CHANGE IN NET ASSETS FROM INVESTMENT
  ACTIVITIES................................         (1,515,967)          (11,266,058)
                                                   ------------         -------------

FROM CAPITAL TRANSACTIONS:
Proceeds from Shares Sold...................         40,465,621            81,626,150
Net Asset Value of Shares Issued Through
  Dividend Reinvestment.....................          2,903,566             3,442,192
Cost of Shares Repurchased..................        (69,212,525)         (103,777,091)
                                                   ------------         -------------
NET CHANGE IN NET ASSETS FROM CAPITAL
  TRANSACTIONS..............................        (25,843,338)          (18,708,749)
                                                   ------------         -------------
TOTAL DECREASE IN NET ASSETS................        (27,359,305)          (29,974,807)
NET ASSETS:
Beginning of the Period.....................        119,732,906           149,707,713
                                                   ------------         -------------
End of the Period (Including accumulated
  undistributed net investment income of
  $82,321 and $147,133, respectively).......       $ 92,373,601         $ 119,732,906
                                                   ============         =============
</TABLE>

                                               See Notes to Financial Statements

                                       16
<PAGE>   18

Financial Highlights
THE FOLLOWING SCHEDULE PRESENTS FINANCIAL HIGHLIGHTS FOR ONE SHARE OF THE FUND
OUTSTANDING THROUGHOUT THE PERIODS INDICATED.

<TABLE>
<CAPTION>
                                                    YEAR ENDED SEPTEMBER 30,
             CLASS A SHARES                ------------------------------------------
                                           2000      1999     1998     1997     1996
                                           ------------------------------------------
<S>                                        <C>      <C>       <C>      <C>      <C>
NET ASSET VALUE, BEGINNING OF THE
  PERIOD.................................  $7.77    $ 8.42    $8.19    $8.11    $8.38
                                           -----    ------    -----    -----    -----
  Net Investment Income..................    .51       .54      .60      .57      .56
  Net Realized and Unrealized
    Gain/Loss............................   (.08)     (.65)     .18      .07     (.27)
                                           -----    ------    -----    -----    -----
Total from Investment Operations.........    .43      (.11)     .78      .64      .29
Less Distributions from Net Investment
  Income.................................    .52       .54      .55      .56      .56
                                           -----    ------    -----    -----    -----
NET ASSET VALUE, END OF THE PERIOD.......  $7.68    $ 7.77    $8.42    $8.19    $8.11
                                           =====    ======    =====    =====    =====

Total Return (a).........................  5.82%    -1.34%    9.87%    8.09%    3.57%
Net Assets at End of the Period (In
  millions)..............................  $67.9    $ 69.2    $37.2    $38.3    $45.2
Ratio of Expenses to Average Net
  Assets (b).............................  1.27%     1.22%    1.16%    1.18%    1.13%
Ratio of Net Investment Income to Average
  Net Assets.............................  6.78%     6.88%    7.19%    6.95%    6.83%
Portfolio Turnover.......................   174%       85%     217%      82%     282%
</TABLE>

(a) Assumes reinvestment of all distributions for the period and does not
    include payment of the maximum sales charge of 4.75% or contingent deferred
    sales charge ("CDSC"). On purchases of $1 million or more, a CDSC of 1% may
    be imposed on certain redemptions made within one year of purchase. If the
    sales charges were included, total returns would be lower.

(b) The Ratio of Expenses to Average Net Assets does not reflect credits earned
    on overnight cash balances. If these credits were reflected as a reduction
    of expenses, the ratio would decrease by .01% for the period ended September
    30, 1999.

See Notes to Financial Statements

                                       17
<PAGE>   19

Financial Highlights
THE FOLLOWING SCHEDULE PRESENTS FINANCIAL HIGHLIGHTS FOR ONE SHARE OF THE FUND
OUTSTANDING THROUGHOUT THE PERIODS INDICATED.

<TABLE>
<CAPTION>
                                                      YEAR ENDED SEPTEMBER 30,
            CLASS B SHARES               --------------------------------------------------
                                         2000 (C)    1999 (C)     1998      1997      1996
                                         --------------------------------------------------
<S>                                      <C>         <C>         <C>       <C>       <C>
NET ASSET VALUE, BEGINNING OF THE
  PERIOD...............................   $7.76       $ 8.41     $ 8.19    $ 8.10    $ 8.38
                                          -----       ------     ------    ------    ------
  Net Investment Income................     .47          .49        .53       .51       .50
  Net Realized and Unrealized
    Gain/Loss..........................    (.10)        (.66)       .18       .07      (.28)
                                          -----       ------     ------    ------    ------
Total from Investment Operations.......     .37         (.17)       .71       .58       .22
Less Distributions from Net Investment
  Income...............................     .46          .48        .49       .49       .50
                                          -----       ------     ------    ------    ------
NET ASSET VALUE, END OF THE PERIOD.....   $7.67       $ 7.76     $ 8.41    $ 8.19    $ 8.10
                                          =====       ======     ======    ======    ======

Total Return (a).......................   5.00%       -2.07%      8.96%     7.43%     2.70%
Net Assets at End of the Period (In
  millions)............................   $16.7       $ 40.4     $101.2    $121.7    $150.8
Ratio of Expenses to Average Net Assets
  (b)..................................   2.03%        1.96%      1.93%     1.94%     1.89%
Ratio of Net Investment Income to
  Average Net Assets...................   6.03%        6.05%      6.40%     6.20%     6.08%
Portfolio Turnover.....................    174%          85%       217%       82%      282%
</TABLE>

(a) Assumes reinvestment of all distributions for the period and does not
    include payment of the maximum contingent deferred sales charge of 4%,
    charged on certain redemptions made within one year of purchase and
    declining to 0% after the fifth year. If the sales charge was included,
    total returns would be lower.

(b) The Ratio of Expenses to Average Net Assets does not reflect credits earned
    on overnight cash balances. If these credits were reflected as a reduction
    of expenses, the ratio would decrease by .01% for the period ended September
    30, 1999.

(c) Based on average shares outstanding.

                                               See Notes to Financial Statements

                                       18
<PAGE>   20

Financial Highlights
THE FOLLOWING SCHEDULE PRESENTS FINANCIAL HIGHLIGHTS FOR ONE SHARE OF THE FUND
OUTSTANDING THROUGHOUT THE PERIODS INDICATED.

<TABLE>
<CAPTION>
                                                     YEAR ENDED SEPTEMBER 30,
CLASS C SHARES                             --------------------------------------------
                                           2000     1999 (C)    1998     1997     1996
                                           --------------------------------------------
<S>                                        <C>      <C>         <C>      <C>      <C>
NET ASSET VALUE, BEGINNING OF THE
  PERIOD.................................  $7.76     $ 8.41     $8.19    $8.10    $8.38
                                           -----     ------     -----    -----    -----
  Net Investment Income..................    .46        .49       .53      .50      .50
  Net Realized and Unrealized
    Gain/Loss............................   (.09)      (.66)      .18      .08     (.28)
                                           -----     ------     -----    -----    -----
Total from Investment Operations.........    .37       (.17)      .71      .58      .22
Less Distributions from Net Investment
  Income.................................    .46        .48       .49      .49      .50
                                           -----     ------     -----    -----    -----
NET ASSET VALUE, END OF THE PERIOD.......  $7.67     $ 7.76     $8.41    $8.19    $8.10
                                           =====     ======     =====    =====    =====

Total Return (a).........................  5.00%     -2.07%     8.96%    7.43%    2.70%
Net Assets at End of the Period (In
  millions)..............................  $ 7.7     $ 10.1     $11.3    $13.7    $18.6
Ratio of Expenses to Average Net
  Assets (b).............................  2.03%      1.97%     1.93%    1.94%    1.89%
Ratio of Net Investment Income to Average
  Net Assets.............................  6.03%      6.08%     6.41%    6.20%    6.08%
Portfolio Turnover.......................   174%        85%      217%      82%     282%
</TABLE>

(a) Assumes reinvestment of all distributions for the period and does not
    include payment of the maximum contingent deferred sales charge of 1%,
    charged on certain redemptions made within one year of purchase. If the
    sales charge was included, total returns would be lower.

(b) The Ratio of Expenses to Average Net Assets does not reflect credits earned
    on overnight cash balances. If these credits were reflected as a reduction
    of expenses, the ratio would decrease by .01% for the period ended September
    30, 1999.

(c) Based on average shares outstanding.

See Notes to Financial Statements

                                       19
<PAGE>   21

NOTES TO
FINANCIAL STATEMENTS

September 30, 2000

1. SIGNIFICANT ACCOUNTING POLICIES

Van Kampen U.S. Government Trust for Income (the "Fund") is organized as a
Delaware business trust, and is registered as a diversified open-end management
investment company under the Investment Company Act of 1940, as amended. The
Fund's investment objective is to seek a high level of current income. The Fund
invests primarily in debt securities issued or guaranteed by the U.S.
Government, its agencies or instrumentalities. The Fund commenced investment
operations on October 6, 1992 with two classes of common shares, Class A and
Class B Shares. The distribution of the Fund's Class C Shares commenced on April
12, 1993.

    The following is a summary of significant accounting policies consistently
followed by the Fund in the preparation of its financial statements. The
preparation of financial statements in conformity with accounting principles
generally accepted in the United States of America requires management to make
estimates and assumptions that affect the reported amounts of assets and
liabilities and disclosure of contingent assets and liabilities at the date of
the financial statements and the reported amounts of revenues and expenses
during the reporting period. Actual results could differ from those estimates.

A. SECURITY VALUATION Investments are stated at value using market quotations or
indications of value obtained from an independent pricing service based on the
mean of the bid and asked prices. For those securities where quotations or
prices are not available, valuations are determined in accordance with
procedures established in good faith by the Board of Trustees. Short-term
securities with remaining maturities of 60 days or less are valued at amortized
cost, which approximates market value.

B. SECURITY TRANSACTIONS Security transactions are recorded on a trade date
basis. Realized gains and losses are determined on an identified cost basis. The
Fund may purchase and sell securities on a "when-issued" or "delayed delivery"
basis, with settlement to occur at a later date. The value of the security
purchased is subject to market fluctuations during this period. The Fund will
maintain, in a segregated account with its custodian, assets having an aggregate
value at least equal to the amount of the when-issued or delayed delivery
purchase commitments until payment is made. At September 30, 2000, there were no
when-issued or delayed delivery purchase commitments.

    The Fund trades certain securities under the terms of forward commitments,
whereby the settlement for payment and delivery occurs at a specified future
date. Forward commitments are privately negotiated transactions between the Fund
and dealers. Upon executing a forward commitment and during the period of
obligation, the Fund maintains collateral of cash or securities in a segregated

                                       20
<PAGE>   22

NOTES TO
FINANCIAL STATEMENTS

September 30, 2000

account with its custodian in an amount sufficient to relieve the obligation. If
the intent of the Fund is to accept delivery of a security traded under a
forward purchase commitment, the commitment is recorded as a long-term purchase.
For forward purchase commitments for which security settlement is not intended
by the Fund, changes in the value of the commitment are recognized by marking
the commitment to market on a daily basis. Certain forward commitments are
entered into with the intent of recognizing fee income which results from the
difference between the price of a forward settlement security versus the current
cash settlement price of the same security. Upon the closing of these forward
commitments, this income is recognized and is shown as fee income on the
Statement of Operations. As of September 30, 2000, there were no forward
commitments outstanding.

    The Fund may invest in repurchase agreements, which are short-term
investments in which the Fund acquires ownership of a debt security and the
seller agrees to repurchase the security at a future time and specified price.
The Fund may invest independently in repurchase agreements, or transfer
uninvested cash balances into a pooled cash account along with other investment
companies advised by Van Kampen Asset Management Inc. (the "Adviser") or its
affiliates, the daily aggregate of which is invested in repurchase agreements.
Repurchase agreements are fully collateralized by the underlying debt security.
The Fund will make payment for such securities only upon physical delivery or
evidence of book entry transfer to the account of the custodian bank. The seller
is required to maintain the value of the underlying security at not less than
the repurchase proceeds due the Fund.

C. INCOME AND EXPENSES Interest income is recorded on an accrual basis. Original
issue discount is accreted over the expected life of each applicable security.
Income and expenses of the Fund are allocated on a pro rata basis to each class
of shares, except for distribution and service fees and transfer agency costs
which are unique to each class of shares.

D. FEDERAL INCOME TAXES It is the Fund's policy to comply with the requirements
of the Internal Revenue Code applicable to regulated investment companies and to
distribute substantially all of its taxable income to its shareholders.
Therefore, no provision for federal income taxes is required.

    At September 30, 2000, for federal income tax purposes, cost of long- and
short-term investments is $93,283,809, the aggregate gross unrealized
appreciation is $1,113,542 and the aggregate gross unrealized depreciation is
2,821,183, resulting in net unrealized depreciation on long- and short-term
investments of $1,707,641.

    The Fund intends to utilize provisions of the federal income tax laws which
allow it to carry a realized capital loss forward for eight years following the
year of

                                       21
<PAGE>   23

NOTES TO
FINANCIAL STATEMENTS

September 30, 2000

the loss and offset these losses against any future realized capital gains. At
September 30, 2000, the Fund had an accumulated capital loss carryforward for
tax purposes of $51,575,748 which will expire between September 30, 2003 and
September 30, 2008. Net realized loss differs for financial and tax reporting
purposes primarily as a result of post October 31 losses which are not
recognized for tax purposes until the first day of the following fiscal year,
deferral of losses related to straddles, and gains recognized for tax purposes
on open futures positions at September 30, 2000.

E. DISTRIBUTION OF INCOME AND GAINS The Fund declares daily and pays monthly
dividends from net investment income. Net realized gains, if any, are
distributed annually. Distributions from net realized gains for book purposes
may include short-term capital gains and gains on forwards and futures
transactions. All short-term capital gains and a portion of futures gains are
included in ordinary income for tax purposes.

    Due to inherent differences in the recognition of income, expenses and
realized gains/losses under generally accepted accounting principles and federal
income tax purposes, permanent differences between book and tax basis reporting
have been identified and appropriately reclassified. During 2000, permanent book
and tax basis differences relating to the recognition of net realized gains on
paydowns of mortgage pool obligations totaling $20,163 were reclassified from
accumulated net realized loss to accumulated undistributed net investment
income.

F. EXPENSE REDUCTIONS During the year ended September 30, 2000, the Fund's
custody fee was reduced by $4,859 as a result of credits earned on overnight
cash balances.

2. INVESTMENT ADVISORY AGREEMENT AND
OTHER TRANSACTIONS WITH AFFILIATES

Under the terms of the Fund's Investment Advisory Agreement, the Adviser will
provide investment advice and facilities to the Fund for an annual fee, payable
monthly, of .60% of the Fund's average daily net assets.

    Effective April 17, 2000, the Fund's Board of Trustees approved a change to
the Fund's Investment Advisory Agreement. Under the new terms of the Agreement,
the Adviser will provide investment advice and facilities to the Fund for an
annual fee payable monthly as follows:

<TABLE>
<CAPTION>
                  AVERAGE DAILY NET ASSETS                    $ PER ANNUM
<S>                                                           <C>
First $500 million..........................................   .60 of 1%
Next $500 million...........................................   .55 of 1%
Over $1 billion.............................................   .50 of 1%
</TABLE>

                                       22
<PAGE>   24

NOTES TO
FINANCIAL STATEMENTS

September 30, 2000

    For the year ended September 30, 2000, the Fund recognized expenses of
approximately $4,200 representing legal services provided by Skadden, Arps,
Slate, Meagher & Flom (Illinois), counsel to the Fund, of which a trustee of the
Fund is an affiliated person.

    For the year ended September 30, 2000, the Fund recognized expenses of
approximately $25,500 representing Van Kampen Funds Inc.'s or its affiliates
(collectively "Van Kampen") cost of providing accounting services to the Fund.

    Van Kampen Investor Services Inc., an affiliate of the Adviser, serves as
the shareholder servicing agent for the Fund. For the year ended September 30,
2000, the Fund recognized expenses of approximately $116,000. Transfer agency
fees are determined through negotiations with the Fund's Board of Trustees and
are based on competitive benchmarks.

    Certain officers and trustees of the Fund are also officers and directors of
Van Kampen. The Fund does not compensate its officers or trustees who are
officers of Van Kampen.

    The Fund provides deferred compensation and retirement plans for its
trustees who are not officers of Van Kampen. Under the deferred compensation
plan, trustees may elect to defer all or a portion of their compensation to a
later date. Benefits under the retirement plan are payable for a ten-year period
and are based upon each trustee's years of service to the Fund. The maximum
annual benefit per trustee under the plan is $2,500.

                                       23
<PAGE>   25

NOTES TO
FINANCIAL STATEMENTS

September 30, 2000

3. CAPITAL TRANSACTIONS

At September 30, 2000, capital aggregated $83,041,957, $53,882,017 and
$14,339,959 for Classes A, B and C, respectively. For the year ended September
30, 2000, transactions were as follows:

<TABLE>
<CAPTION>
                                                             SHARES         VALUE
<S>                                                        <C>           <C>
Sales:
  Class A................................................   4,216,617    $ 32,217,161
  Class B................................................     902,934       6,901,553
  Class C................................................     176,560       1,346,907
                                                           ----------    ------------
Total Sales..............................................   5,296,111    $ 40,465,621
                                                           ==========    ============
Dividend Reinvestment:
  Class A................................................     265,000    $  2,022,954
  Class B................................................      80,368         613,385
  Class C................................................      35,034         267,227
                                                           ----------    ------------
Total Dividend Reinvestment..............................     380,402    $  2,903,566
                                                           ==========    ============
Repurchases:
  Class A................................................  (4,544,915)   $(34,662,864)
  Class B................................................  (4,018,758)    (30,682,915)
  Class C................................................    (507,107)     (3,866,746)
                                                           ----------    ------------
Total Repurchases........................................  (9,070,780)   $(69,212,525)
                                                           ==========    ============
</TABLE>

                                       24
<PAGE>   26

NOTES TO
FINANCIAL STATEMENTS

September 30, 2000

    At September 30, 1999, capital aggregated $83,464,706, $77,049,994 and
$16,592,571 for Classes A, B and C, respectively. For the year ended September
30, 1999, transactions were as follows:

<TABLE>
<CAPTION>
                                                            SHARES           VALUE
<S>                                                       <C>            <C>
Sales:
  Class A...............................................    8,393,826    $  66,973,779
  Class B...............................................    1,471,020       12,001,267
  Class C...............................................      324,468        2,651,104
                                                          -----------    -------------
Total Sales.............................................   10,189,314    $  81,626,150
                                                          ===========    =============
Dividend Reinvestment:
  Class A...............................................      165,012    $   1,314,796
  Class B...............................................      222,640        1,795,593
  Class C...............................................       41,347          331,803
                                                          -----------    -------------
Total Dividend Reinvestment.............................      428,999    $   3,442,192
                                                          ===========    =============
Repurchases:
  Class A...............................................   (4,072,147)   $ (32,336,095)
  Class B...............................................   (8,511,500)     (68,177,773)
  Class C...............................................     (404,425)      (3,263,223)
                                                          -----------    -------------
Total Repurchases.......................................  (12,988,072)   $(103,777,091)
                                                          ===========    =============
</TABLE>

    Class B Shares purchased on or after June 1, 1996, and any dividend
reinvestment plan Class B Shares received thereon, automatically convert to
Class A Shares eight years after the end of the calendar month in which the
shares were purchased. Class B Shares purchased before June 1, 1996, and any
dividend reinvestment plan Class B Shares received thereon, automatically
convert to Class A Shares six years after the end of the calendar month in which
the shares were purchased. For the years ended September 30, 2000 and 1999,
1,959,301 and 4,729,905 Class B Shares converted to Class A Shares, and are
shown in the above tables as sales of Class A Shares and repurchases of Class B
Shares. Class C Shares purchased before January 1, 1997, and any dividend
reinvestment plan Class C Shares received thereon, automatically convert to
Class A Shares ten years after the end of the calendar month in which such
shares were purchased. Class C Shares purchased on or after January 1, 1997 do
not possess a conversion feature. For the years ended September 30, 2000 and
1999, no Class C Shares converted to Class A Shares.

    Class B and C Shares are offered without a front end sales charge, but are
subject to a contingent deferred sales charge (CDSC). The CDSC will be imposed
on most

                                       25
<PAGE>   27

NOTES TO
FINANCIAL STATEMENTS

September 30, 2000

redemptions made within five years of the purchase for Class B Shares and one
year of the purchase for Class C Shares as detailed in the following schedule.

<TABLE>
<CAPTION>
                                                                CONTINGENT DEFERRED
                                                                    SALES CHARGE
                                                             --------------------------
YEAR OF REDEMPTION                                           CLASS B            CLASS C
<S>                                                          <C>                <C>
First......................................................   4.00%              1.00%
Second.....................................................   4.00%               None
Third......................................................   3.00%               None
Fourth.....................................................   2.50%               None
Fifth......................................................   1.50%               None
Sixth and Thereafter.......................................    None               None
</TABLE>

    For the year ended September 30, 2000, Van Kampen, as Distributor for the
Fund, received commissions on sales of the Fund's Class A Shares of
approximately $5,800 and CDSC on redeemed shares of approximately $57,100. Sales
charges do not represent expenses of the Fund.

4. INVESTMENT TRANSACTIONS

During the period, the cost of purchases and proceeds from sales of investments,
including paydowns on mortgage backed securities, and excluding short-term
investments and forward commitment transactions, were $185,532,370 and
$236,216,613, respectively.

5. DERIVATIVE FINANCIAL INSTRUMENTS

A derivative financial instrument in very general terms refers to a security
whose value is "derived" from the value of an underlying asset, reference rate
or index.

    The Fund has a variety of reasons to use derivative instruments, such as to
attempt to protect the Fund against possible changes in the market value of its
portfolio or generate potential gain. All of the Fund's portfolio holdings,
including derivative instruments, are marked to market each day with the change
in value reflected in unrealized appreciation/depreciation. Upon disposition, a
realized gain or loss is recognized accordingly, except when taking delivery of
a security underlying a futures contract or forward commitment. In these
instances, the recognition of gain or loss is postponed until the disposal of
the security underlying the futures contract or forward commitment.

    Summarized below are the specific types of derivative financial instruments
used by the Fund.

                                       26
<PAGE>   28

NOTES TO
FINANCIAL STATEMENTS

September 30, 2000

A. FUTURES CONTRACTS A futures contract is an agreement involving the delivery
of a particular asset on a specified future date at an agreed upon price. The
Fund generally invests in exchange traded futures contracts on U.S. Treasury
Bonds and typically closes the contract prior to the delivery date. These
contracts are generally used to manage the portfolio's effective maturity and
duration.

    Upon entering into futures contracts, the Fund maintains, in a segregated
account with its custodian, cash or liquid securities with a value equal to its
obligation under the futures contracts. During the period the futures contract
is open, payments are received from or made to the broker based upon changes in
the value of the contract (the variation margin). The potential risk of loss
associated with a futures contract is in excess of the variation margin
reflected on the Statement of Assets and Liabilities.

    Transactions in futures contracts, each with a par value of $100,000, for
the year ended September 30, 2000, were as follows:

<TABLE>
<CAPTION>
                                                                CONTRACTS
<S>                                                             <C>
Outstanding at September 30, 1999...........................        38
Futures Opened..............................................       484
Futures Closed..............................................      (496)
                                                                  ----
Outstanding at September 30, 2000...........................        26
                                                                  ====
</TABLE>

    The futures contracts outstanding as of September 30, 2000, and the
descriptions and unrealized appreciation/depreciation are as follows:

<TABLE>
<CAPTION>
                                                                             UNREALIZED
                                                                           APPRECIATION/
                                                              CONTRACTS    (DEPRECIATION)
<S>                                                           <C>          <C>
LONG CONTRACTS
10-Year U.S. Treasury Note Future, December 2000--(Current
  Notional Value of $99,750 per contract)...................     26            $5,308
                                                                 --            ------
</TABLE>

B. FORWARD COMMITMENTS The Fund trades certain securities under the terms of
forward commitments, whereby the settlement occurs at a specific future date.
Forward commitments are privately negotiated transactions between the Fund and
dealers. While forward commitments are outstanding, the Fund maintains
sufficient collateral of cash or securities in a segregated account with its
custodian. Forward commitments are marked to market on a daily basis with
changes in value reflected as a component of unrealized
appreciation/depreciation. Purchasing securities on a forward commitment
involves a risk that the market value at the time of delivery may be lower than
the agreed upon purchase price resulting in an

                                       27
<PAGE>   29

NOTES TO
FINANCIAL STATEMENTS

September 30, 2000

unrealized loss. This potential for loss may be greater than the amount shown on
the Statement of Assets and Liabilities for forwards that don't intend to
settle. Selling securities on a forward commitment involves different risks and
can result in losses more significant than those arising from the purchase of
such securities. As of September 30, 2000, there were no forward commitments
outstanding.

C. CLOSED BUT UNSETTLED FORWARD COMMITMENTS In certain situations, the Fund has
entered into offsetting transactions for outstanding forward commitments prior
to settlement of the obligation. In doing so, the Fund realizes a gain or loss
on the transactions at the time the forward commitment is closed. Risks may
result from the potential inability of counterparties to meet the terms of their
contracts. As of September 30, 2000, there were no closed but unsettled forward
commitments outstanding.

6. DISTRIBUTION AND SERVICE PLANS

The Fund and its shareholders have adopted a distribution plan pursuant to Rule
12b-1 under the Investment Company Act of 1940, as amended, and a service plan
(collectively the "Plans"). The Plans govern payments for the distribution of
the Fund's shares, ongoing shareholder services and maintenance of shareholder
accounts.

    Annual fees under the Plans of up to .25% of Class A net assets and 1.00%
each of Class B and Class C net assets are accrued daily. Included in these fees
for the year ended September 30, 2000, are payments retained by Van Kampen of
approximately $248,000.

7. BORROWINGS

In accordance with its investment policies, the Fund may borrow from banks for
temporary purposes and is subject to certain other customary restrictions.
Effective November 30, 1999, the Fund, in conjunction with certain other funds
of Van Kampen entered in to a $650,000,000 committed line of credit facility
with a group of banks which expires on November 28, 2000, but is renewable with
the consent of the participating banks. Each fund is permitted to utilize the
facility in accordance with the restrictions of its prospectus. In the event the
demand for the credit facility meets or exceeds $650 million on a complex-wide
basis, each fund will be limited to its pro-rata percentage based on the net
assets of each participating fund. Interest on borrowings is charged under the
agreement at a rate of 0.50% above the federal funds rate per annum. An annual
commitment fee of 0.09% per annum is charged on the unused portion of the credit
facility, which each fund incurs based on its pro-rata percentage of quarterly
net assets. The Fund has not borrowed against the credit facility during the
period.

                                       28
<PAGE>   30

REPORT OF INDEPENDENT AUDITORS

To the Shareholders and Board of Trustees of Van Kampen U.S. Government Trust
for Income

We have audited the accompanying statement of assets and liabilities, including
the portfolio of investments, of Van Kampen U.S. Government Trust for Income
Fund (the "Fund"), as of September 30, 2000, and the related statements of
operations, changes in net assets and financial highlights for the year then
ended. These financial statements and financial highlights are the
responsibility of the Fund's management. Our responsibility is to express an
opinion on these financial statements based on our audit. The statement of
changes in net assets of the Fund for the year ended September 30, 1999, and the
financial highlights for each of the four years in the period then ended were
audited by other auditors whose report dated November 11, 1999, expressed an
unqualified opinion on those statements.

    We conducted our audit in accordance with auditing standards generally
accepted in the United States. Those standards require that we plan and perform
the audit to obtain reasonable assurance about whether the financial statements
and financial highlights are free of material misstatement. An audit includes
examining, on a test basis, evidence supporting the amounts and disclosure in
the financial statements. Our procedures included confirmation of securities
owned as of September 30, 2000, by correspondence with the custodian and
brokers. An audit also includes assessing the accounting principles used and
significant estimates made by management, as well as evaluating the overall
financial statement presentation. We believe that our audit provides a
reasonable basis for our opinion.

    In our opinion, the 2000 financial statements and financial highlights
referred to above present fairly, in all material respects, the financial
position of the Fund at September 30, 2000, the results of its operations,
changes in net assets and financial highlights for the year then ended, in
conformity with accounting principles generally accepted in the United States.

SIG

Chicago, Illinois
November 8, 2000

                                       29
<PAGE>   31

           VAN KAMPEN FUNDS

THE VAN KAMPEN
FAMILY OF FUNDS

Growth

   Aggressive Growth
   American Value*
   Emerging Growth
   Enterprise
   Equity Growth
   Focus Equity
   Growth
   Mid Cap Growth
   Pace
   Select Growth
   Small Cap Value
   Tax Managed Equity Growth
   Technology

Growth and Income

   Comstock
   Equity Income
   Growth and Income
   Harbor
   Real Estate Securities
   Utility
   Value

Global/International

   Asian Growth
   Emerging Markets
   European Equity
   Global Equity
   Global Equity Allocation
   International Magnum
   Latin American
   Strategic Income*
   Tax Managed Global Franchise
   Worldwide High Income

Income

   Corporate Bond
   Government Securities
   High Income Corporate Bond
   High Yield
   Limited Maturity Government
   U.S. Government
   U.S. Government Trust for Income

Capital Preservation

   Reserve
   Tax Free Money

Senior Loan

   Prime Rate Income Trust
   Senior Floating Rate

Tax Free

   California Insured Tax Free
   Florida Insured Tax Free Income
   High Yield Municipal**
   Insured Tax Free Income
   Intermediate Term Municipal
     Income
   Municipal Income
   New York Tax Free Income
   Pennsylvania Tax Free Income
   Tax Free High Income

To find out more about any of these funds, ask your financial advisor for a
prospectus, which contains more complete information, including sales charges,
risks, and ongoing expenses. Please read it carefully before you invest or send
money.

To view a current Van Kampen fund prospectus or to receive additional fund
information, choose from one of the following:

- visit our Web site at
  WWW.VANKAMPEN.COM--
  to view a prospectus, select
  Download Prospectus                                            [COMPUTER ICON]

- call us at 1-800-341-2911
  weekdays from 7:00 a.m. to 7:00 p.m.
  central time. Telecommunications
  Device for the Deaf users, call
  1-800-421-2833.

                                                                    [PHONE ICON]

- e-mail us by visiting
  WWW.VANKAMPEN.COM and
  selecting Contact Us

                                                            [MAIL ICON]

 * Closed to new investors

** Open to new investors for a limited time

                                       30
<PAGE>   32

FUND OFFICERS AND IMPORTANT ADDRESSES
VAN KAMPEN U.S. GOVERNMENT TRUST
FOR INCOME

BOARD OF TRUSTEES

J. MILES BRANAGAN
JERRY D. CHOATE
LINDA HUTTON HEAGY
R. CRAIG KENNEDY
MITCHELL M. MERIN*
JACK E. NELSON
RICHARD F. POWERS, III*
PHILLIP B. ROONEY
FERNANDO SISTO
WAYNE W. WHALEN* - Chairman
SUZANNE H. WOOLSEY

OFFICERS
RICHARD F. POWERS, III*
   President

STEPHEN L. BOYD*
   Executive Vice President and
   Chief Investment Officer

A. THOMAS SMITH III*
   Vice President and Secretary

JOHN L. SULLIVAN*
   Vice President, Treasurer and
   Chief Financial Officer

RICHARD A. CICCARONE*
JOHN R. REYNOLDSON*
MICHAEL H. SANTO*
JOHN H. ZIMMERMANN, III*
   Vice Presidents

INVESTMENT ADVISER
VAN KAMPEN ASSET MANAGEMENT INC.
1 Parkview Plaza
P.O. Box 5555
Oakbrook Terrace, Illinois 60181-5555

DISTRIBUTOR
VAN KAMPEN FUNDS INC.
1 Parkview Plaza
P.O. Box 5555
Oakbrook Terrace, Illinois 60181-5555

SHAREHOLDER SERVICING AGENT
VAN KAMPEN INVESTOR SERVICES INC.
P.O. Box 218256
Kansas City, Missouri 64121-8256

CUSTODIAN
STATE STREET BANK
AND TRUST COMPANY
225 Franklin Street
P.O. Box 1713
Boston, Massachusetts 02105

LEGAL COUNSEL
SKADDEN, ARPS, SLATE,
MEAGHER & FLOM (ILLINOIS)
333 West Wacker Drive
Chicago, Illinois 60606

INDEPENDENT AUDITORS(1)
ERNST & YOUNG LLP
233 South Wacker Drive
Chicago, Illinois 60606

(1) Independent auditors for the Fund perform an annual audit of the Fund's
    financial statements. The Board of Trustees has engaged Ernst & Young LLP to
    be the Fund's independent auditors. PricewaterhouseCoopers LLP ceased being
    the Fund's independent auditors effective May 18, 2000. The cessation of the
    client-auditor relationship between the Fund and PricewaterhouseCoopers was
    based solely on a possible future business relationship by
    PricewaterhouseCoopers with an affiliate for the Fund's investment Adviser.

*  "Interested persons" of the Fund, as defined in the Investment Company Act of
   1940, as amended.

(C)  Van Kampen Funds Inc., 2000. All rights reserved.

(SM) denotes a service mark of Van Kampen Funds Inc.

This report is submitted for the general information of the shareholders of the
Fund. It is not authorized for distribution to prospective investors unless it
has been preceded or is accompanied by an effective prospectus of the Fund which
contains additional information on how to purchase shares, the sales charge, and
other pertinent data. After February 28,
2001, the report, if used with prospective investors, must be accompanied by a
monthly performance update.

                                       31


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