WITTER DEAN TAX EXEMPT SECURITIES TRUST
N-30D, 1994-02-24
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                    DEAN WITTER TAX-EXEMPT SECURITIES TRUST
                            Two World Trade Center
                           New York, New York 10048

DEAR SHAREHOLDER:
===============================================================================

        We are pleased to present the annual report on the operations of Dean
Witter Tax-Exempt Securities Trust for the fiscal year ended December 31, 1993.

MARKET CONDITIONS

        Last year set records for municipals. Underwritings of new municipal
bond issues reached an all-time high. Yields fell to an all-time low of 5.41
percent in October, as measured by The Bond Buyer Revenue Bond Index. The Index
began the year at 6.40 percent and ended December at 5.52 percent. In addition,
the passage and signing during the summer of the Clinton administration's
Revenue Reconciliation Act made higher marginal taxes a reality. Demand for
tax-exempt bonds was stimulated by the new top federal tax rate of 39.6 percent
(36%+a 3.6% surtax).

        New-issue underwriting totaled $290 billion in 1993 increasing 23
percent over the previous record of last year. Refunding issues, which are used
by state and local governments to refinance higher coupon debt, accounted for
an unprecedented two-thirds of total volume. Underwritings backed by insurance
shared 37 percent of the market.

DEAN WITTER TAX-EXEMPT MUNICIPAL SECURITIES TRUST

                         GROWTH OF $10,000
                         ($ IN THOUSANDS)
                                             LEHMAN BROTHERS
     DATE                TOTAL               MUNICIPAL BOND
                                                 INDEX
- -------------------------------------------------------------------
December 31, 1983       $ 9,600                 $10,000
December 31, 1984       $10,499                 $11,055
December 31, 1985       $12,741                 $13,269
December 31, 1986       $15,311                 $15,832
December 31, 1987       $15,090                 $16,071
December 31, 1988       $17,055                 $17,703
December 31, 1989       $18,864                 $19,614
December 31, 1990       $19,968                 $21,043
December 31, 1991       $22,506                 $23,598
December 31, 1992       $24,552                 $25,680
December 31, 1993       $27,309 (3)             $28,833
- -------------------------------------------------------------------

                  AVERAGE ANNUAL TOTAL RETURNS
                    1 YEAR      5 YEARS      10 YEARS
- -------------------------------------------------------------
Non-Standard        11.23 (1)    9.87 (1)      11.02 (1)
Standard (-FESC)     6.78 (2)    8.98 (2)      10.57 (2)
- -------------------------------------------------------------

_____Fund     _____Lehman (4)
_____________________________

Past performance is not predictive of future returns.

(1)  Figure shown assumes reinvestment of all distributions and does not
     reflect the deduction of any sales charges.

(2)  Figure shown assumes reinvestment of all distributions and the deduction
     of the maximum applicable front-end sales charge (4%).  See the Fund's
     current prospectus for complete details on fees and sales charges.

(3)  Closing value including the deduction of a 4% front-end sales charge,
     assuming a complete redemption on December 31, 1993.

(4)  The Lehman Brothers Municipal Bond Index tracks the performance
     of municipal bonds with maturities of 2 years or greater and a minimum
     credit rating of Baa or BBB, as rated by Moody's Investors Service, Inc.
     or Standard& Poor's Corp.  The Index does not include any expenses, fees,
     or charges.

PERFORMANCE

        Dean Witter Tax-Exempt Securities Trust's total return for the year
ended December 31, 1993 was 11.23 percent (not including the deduction of the
maximum applicable front-end sales charge; see the chart for further details).
Since inception the Fund has provided shareholders with an attractive average
annual total return of 10.78 percent. The Fund's net asset value per share
increased $0.53 from $11.88 to $12.41. Tax free distributions totaling $0.77
per share were paid during the year. At year end, the Fund's net assets totaled
$1.6 billion. The accompanying chart illustrates the performance of a $10,000
investment in the Fund from inception (March 27, 1980) through the fiscal year
ended December 31, 1993 versus the performance of a similar investment in the
Lehman Brothers Municipal Bond Index.

<PAGE>

         
INVESTMENT STRATEGY

        During the year, the Fund continued to meet its tax-free income and
preservation of capital objectives. The Fund was invested in long-term bonds
throughout the year with only two to five percent of assets in short-term
maturities. During the year refunded and other high coupon bonds with
diminished call protection were sold. This reduced the Trust's exposure to
bonds with redemption risk in 1995 and 1996 from 38 percent to 26 percent of
the portfolio. New purchases emphasized quality with a preference for
investment-grade issues rated "A" or better. The Fund's average credit rating
remained "Aa" as rated by Moody's Investors Service, Inc. or "AA" as rated by
Standard & Poor's Corp. The Fund's average maturity and call protection were 18
years and 7 years, respectively.

        The four largest municipal sectors represented in the portfolio,
transportation facilities, electric, hospital and industrial
development/pollution control revenue bonds, comprised 47 percent of net
assets. Bonds subject to the federal alternative minimum income tax (AMT)
represented 14 percent of net assets.

LOOKING AHEAD

        In 1994, the amount of municipal bonds outstanding is expected to
decline. New-issue volume is estimated to drop by 30 percent to $200 billion as
state and local governments offer fewer refundings. Bond maturities and
redemptions are expected to exceed new issuance by more than $60 billion. This
relative lack of supply should strengthen municipal performance relative to
U.S. Treasury securities.

        The Fund plans to sell older, higher-coupon bonds with diminished call
protection. Purchases are expected to favor high-grade general obligations and
essential-purpose revenue bonds such as electric, water & sewer and
transportation issues.

        Over the past few years, the Fund's level of dividend payments has
trended lower as interest rates have declined. This dividend pattern is
expected to extend through 1994. However, the Fund should continue to provide
competitive tax-free distribution yields as it has historically.

        We appreciate your support of Dean Witter Tax-Exempt Securities Trust
and look forward to continuing to serve your investment needs.

                                Very truly yours,

                                Charles A. Fiumefreddo
                                Chairman of the Board


<PAGE>

         
DEAN WITTER TAX-EXEMPT SECURITIES TRUST
<TABLE>
PORTFOLIO OF INVESTMENTS December 31, 1993
===================================================================================================================================
<CAPTION>
Principal
Amount (in                                                                            Coupon         Maturity
thousands)                                                                             Rate            Date           Value
- ---------                                                                             ------          ------          -----
<C>            <S>                                                                     <C>           <C>        <C>
               MUNICIPAL BONDS (94.9%)                                                                    
               GENERAL OBLIGATION (8.1%)
 $  10,000     Birmingham, Alabama, Cap Impr & Refg Ser 1985
                (Crossover Refunded)............................................        9.80 %       10/ 1/10    $   11,252,400
               North Slope Borough, Alaska,
     7,930      Refg 1985 Ser C.................................................       10.40          6/30/95         8,378,124
     5,015      Refg 1984 Ser C.................................................       10.50          6/30/96         5,300,905
     3,500      Refg 1990 Ser I (MBIA Insured)..................................        0.00          6/30/99         2,746,345
     3,900      Ser 1992 A (MBIA Insured).......................................        0.00          6/30/03         2,478,645
     5,000      Ser 1992 A Conv (MBIA Insured)..................................        0.00          6/30/03         5,187,500
     4,000     Connecticut, College Savings 1989 Ser A..........................        0.00          7/ 1/08         1,881,440
    10,000     Broward County, Florida, Refg Ser 1986 (Prerefunded).............        7.875         1/ 1/12        11,229,600
               Florida Board of Education, Cap Outlay
     5,000      Ser 1989 A Refg.................................................        5.00          6/ 1/24         4,759,850
     6,000      Ser 1989 A Refg.................................................        6.00          6/ 1/25         6,238,740
               Massachusetts,
    27,000      Fiscal Recovery 1990 Ser A......................................        7.25          6/ 1/96        29,286,360
     1,500      Refg 1992 Ser B.................................................        6.50          8/ 1/08         1,705,800
    11,500      Refg 1993 Ser A.................................................        5.50          2/ 1/11        11,565,780
     4,000     Clark County, Nevada, Transportation Ser 1992 A (AMBAC Insured)..        6.50          6/ 1/17         4,633,280
               New York City, New York,
    12,000      1990 Ser D......................................................        6.00          8/ 1/07        12,118,200
    10,000      1990 Ser D......................................................        6.00          8/ 1/08        10,069,800
  --------                                                                                                        -------------
   126,345                                                                                                          128,832,769
  --------                                                                                                        -------------
               EDUCATIONAL FACILITIES REVENUE (6.2%)
    10,000     Maryland Health & Higher Educational Facilities Authority,
                The Johns Hopkins University Ser 1985 (Prerefunded).............        9.25          7/ 1/15        11,087,100
     3,000     University of Maryland, 1989 Refg Ser A..........................        7.20         10/ 1/09         3,436,050
               Massachusetts Health & Educational Facilities Authority,
     5,000      Boston University Ser G (Prerefunded)...........................        8.875         7/ 1/15         5,489,950
     3,500      Boston University Ser L RIBS (MBIA Insured).....................       10.45 +       10/ 1/31         4,274,375
    22,500     New Hampshire Higher Educational & Health Facilities Authority,
                Dartmouth College Ser 1993......................................        5.375         6/ 1/23        22,449,150
     2,000     New Jersey Economic Development Authority, The Seeing Eye Inc 1991       7.30          4/ 1/11         2,185,480
    11,000     New York State, City University--John Jay College COPs...........        7.25          8/15/07        11,992,530
               New York State Dormitory Authority, State University
     5,000      Ser 1989 B......................................................        0.00          5/15/02         3,200,550
    21,000      Ser 1990 B......................................................        7.00          5/15/16        23,819,250
     2,000     Pennsylvania Higher Educational Facilities Authority, University of
                Pennsylvania Ser 1987...........................................        6.625         1/ 1/17         2,139,440
     6,725     University of Texas, Permanent University Fund Refg Ser 1985
                (Prerefunded)...................................................        9.00          7/ 1/05         7,300,055
  --------                                                                                                        -------------
    91,725                                                                                                           97,373,930
  --------                                                                                                        -------------
               ELECTRIC REVENUE (12.1%)
               Municipal Electric Authority of Georgia,
    13,500      Power Ser K (Prerefunded).......................................        6.50          1/ 1/07        14,012,325
    10,000      Fifth Crossover Ser.............................................        6.50          1/ 1/17        11,467,700
     6,665     Massachusetts Municipal Wholesale Electric Company, Power
                1987 Ser A (Prerefunded)........................................        8.75          7/ 1/18         7,853,503
               Nebraska Public Power District, Power
     7,000      Ser 1993........................................................        6.125         1/ 1/15         7,446,600
    25,000      1993 Ser C......................................................        5.00          1/ 1/17        23,913,500
    15,000     New York State Power Authority, Gen Pur Ser CC...................        5.25          1/ 1/18        14,938,950
               North Carolina Eastern Municipal Power Agency,
     7,500      Refg Ser 1993 B.................................................        6.25          1/ 1/12         7,796,325
    10,000      Refg Ser 1986 A (Prerefunded)...................................        7.75          1/ 1/15        11,120,900

</TABLE>

<PAGE>

         
DEAN WITTER TAX-EXEMPT SECURITIES TRUST
<TABLE>
PORTFOLIO OF INVESTMENTS December 31, 1993 (continued)
===================================================================================================================================
<CAPTION>
Principal
Amount (in                                                                            Coupon         Maturity
thousands)                                                                             Rate            Date           Value
- ---------                                                                             ------          ------          -----
<C>            <S>                                                                     <C>           <C>        <C>
 $   5,000     North Carolina Municipal Power Agency #1, Catawba Ser 1988.......        6.00 %        1/ 1/15    $    5,099,400
               Puerto Rico Electric Power Authority, Power
     6,000      Ser N...........................................................        5.00          7/ 1/12         5,803,080
    20,000      Ser O...........................................................        0.00          7/ 1/17         5,211,400
     6,000     Austin, Texas, Comb Utilities Refg Ser 1993 A....................        5.75         11/15/13         6,074,400
               Intermountain Power Agency, Utah,
    25,000      Refg 1985 Ser H GAINS (Prerefunded).............................        0.00          7/ 1/12        20,925,000
    15,000      Refg 1985 Ser H.................................................        6.00          7/ 1/21        15,173,100
     5,000      Refg 1985 Ser I.................................................        6.00          7/ 1/21         5,057,700
     8,000      Refg 1993 Ser A.................................................        5.00          7/ 1/23         7,496,800
     8,000     Lewis County Public Utility District #1, Washington, Cowlitz Falls
                Hydro Refg Ser 1993.............................................        5.50          1/ 1/13         8,047,440
    13,000     Snohomish County Public Utilities District #1, Washington,
                1993 Ser (FGIC Insured).........................................        6.00          1/ 1/18        13,607,490
  --------                                                                                                        -------------
   205,665                                                                                                          191,045,613
  --------                                                                                                        -------------
               HOSPITAL REVENUE (10.4%)
     3,000     Baxter County, Arkansas, Baxter County Regional Hospital Inc
                Impr & Refg Ser 1992............................................        7.50          9/ 1/21         3,289,170
    10,000     University of California, UCLA Medical Center Ser 1986...........        6.90         12/ 1/16        10,847,200
     6,000     Connecticut Health & Educational Facilities Authority,
                Yale--New Haven Hospital Ser F (MBIA Insured)...................        7.10          7/ 1/25         6,923,160
    10,000     Alachua County Health Facilities Authority, Florida, Shands Hospital
                at the University of Florida Ser 1985 (Prerefunded).............        8.00         12/ 1/15        10,693,200
     8,350     Altamonte Springs Health Facilities Authority, Florida,
                Adventist Health/Sunbelt Inc Ser 1984 (MBIA Insured) (Prerefunded)     7.90          10/ 1/14         9,405,105
     3,500     Maine Health & Higher Educational Facilities Authority, Maine Medical
                Center Ser 1986 (Prerefunded)...................................        7.375        10/ 1/13         3,914,960
               Massachusetts Health & Educational Facilities Authority,
     8,000      Brigham & Women's Hospital Ser B (Prerefunded)..................        7.125         7/ 1/07         8,692,320
     1,500      Malden Hospital--FHA Insured Mtge Ser A.........................        5.00          8/ 1/16         1,405,425
     9,000      New England Medical Center Ser G (MBIA Insured) (a).............        5.375         7/ 1/24         8,873,820
     2,570     New Ulm, Minnesota, Health Central Refg 1985 Ser C...............       10.00         10/ 1/14         2,906,336
               Rochester, Minnesota, Mayo Foundation/Mayo Medical Center
     7,000      Ser 1992 I......................................................        5.75         11/15/21         7,245,490
     3,700      Ser 1992 F......................................................        6.25         11/15/21         3,981,014
    18,000     Missouri Health & Educational Facilities Authority,
                Barnes-Jewish Inc/Christian Health Services Ser 1993 A..........        5.25          5/15/14        17,537,220
    12,000     Charlotte-Mecklenburg County Hospital Authority, North Carolina,
                Ser 1992........................................................        6.00          1/ 1/22        12,616,920
     4,000     Cuyahoga County, Ohio, The Cleveland Clinic Foundation
                Refg Ser 1988 A.................................................        8.00         12/ 1/15         4,544,680
     6,250     Philadelphia Hospital & Higher Education Facilities Authority,
                Pennsylvania, Temple University Hospital 1993 Ser A.............        6.625        11/15/23         6,693,062
     8,680     North Central Texas Health Facilities Development Corporation,
                University Medical Center Inc Ser 1987..........................        7.75          4/ 1/17         9,206,442
     5,000     Salt Lake City, Utah, IHC Hospital Inc Ser of 1983 (ETM).........        5.00          6/ 1/15         4,877,750
               Fairfax County Industrial Development Authority, Virginia,
    14,000      Fairfax Hospital System Inc/Inova Health Ser 1991 C RITES
                (Prerefunded)...................................................       10.527+        8/29/23        18,480,000
     7,500      Inova Health System Foundation Refg Ser 1993 A..................        5.25          8/15/19         7,253,400
     5,000     University of Virginia, Refg Ser E...............................        6.00          6/ 1/13         5,124,800
  --------                                                                                                        -------------
   153,050                                                                                                          164,511,474
  --------                                                                                                        -------------
               INDUSTRIAL DEVELOPMENT/POLLUTION CONTROL REVENUE (10.5%)
     3,000     Atlanta, Georgia, Delta Air Lines Inc Ser 1989 B (AMT).............      6.25         12/ 1/19         2,928,390
    15,000     Jefferson County, Kentucky, Louisville Gas & Electric Co 1993 Ser B      5.625         8/15/19        15,222,750
     4,000     Maryland Industrial Development Financing Authority, Medical
                Waste Assocs LP 1989 Ser (AMT)..................................        8.75         11/15/10         3,000,000
    10,000     Bass Brook, Minnesota, Minnesota Power & Light Co Refg Ser 1992..        6.00          7/ 1/22        10,330,200

</TABLE>

<PAGE>

         
DEAN WITTER TAX-EXEMPT SECURITIES TRUST
<TABLE>
PORTFOLIO OF INVESTMENTS December 31, 1993 (continued)
===================================================================================================================================
<CAPTION>
Principal
Amount (in                                                                            Coupon         Maturity
thousands)                                                                             Rate            Date           Value
- ---------                                                                             ------          ------          -----
<C>            <S>                                                                     <C>           <C>        <C>
 $   7,500     Becker, Minnesota, Northern States Power Co Ser A 1989...........        6.80 %        4/ 1/07    $    8,360,625
    18,000     Claiborne County, Mississippi, Middle South Energy Inc Ser C.....        9.875        12/ 1/14        22,142,880
    10,500     Clark County, Nevada, Nevada Power Co Ser 1992 A (AMT)
                (FGIC Insured)..................................................        6.70          6/ 1/22        11,565,225
    10,000     Washoe County, Nevada, Sierra Pacific Power Co Ser 1987
                (AMBAC Insured).................................................        6.30         12/ 1/14        10,750,900
     2,000     New Jersey Economic Development Authority, New Jersey Natural
                Gas Co Ser 1991 B (AMT).........................................        7.25          3/ 1/21         2,205,280
     3,000     Pennsylvania Industrial Development Authority, Ser A 1991........        7.00          1/ 1/11         3,329,100
    18,000     Alliance Airport Authority, Texas, AMR Corp Ser 1990 (AMT).......        7.50         12/ 1/29        19,534,680
     6,000     Brazos River Authority, Texas, Texas Utilities Electric Co
                Collateralized Ser 1988 A (AMT).................................        9.25          3/ 1/18         7,057,800
    12,000     Grapevine Industrial Development Corporation, Texas,
                American Airlines Inc Ser 1985..................................        9.25         12/ 1/12        13,156,920
               Matagorda County Navigational District #1, Texas, Central
                Power & Light Co
     7,000      Collateralized Ser 1984 A.......................................        7.50         12/15/14         8,028,440
    10,000      Ser 1986 (AMT)..................................................        7.875        12/ 1/16        11,216,700
     5,000     Putnam County, West Virginia, Appalachian Power Co Ser C ........        6.60          7/ 1/19         5,343,750
    10,000     Weston, Wisconsin, Wisconsin Public Service Corp Refg Ser 1993 A.        6.90          2/ 1/13        11,395,700
  --------                                                                                                        -------------
   151,000                                                                                                          165,569,340
  --------                                                                                                        -------------
               MORTGAGE REVENUE--MULTI-FAMILY (1.8%)
               Massachusetts Housing Finance Agency,
     4,875      GNMA-Backed Ser 1985 A..........................................        9.125        12/ 1/20         5,308,631
     4,800      Hsg Dev 1986 Ser A (AMT)........................................        7.75         12/ 1/19         5,104,800
     7,000     Michigan Housing Development Authority, Rental Ser A
                (Bifurcated FSA Insured)........................................        6.50          4/ 1/23         7,438,900
               New York City Housing Development Corporation, New York,
     4,712      Ruppert Proj--FHA Insured Sec 223F..............................        6.50         11/15/18         5,063,184
     4,574      Stevenson Commons Proj--FHA Insured Sec 223F....................        6.50          5/15/18         4,908,112
  --------                                                                                                        -------------
    25,961                                                                                                           27,823,627
  --------                                                                                                        -------------
               MORTGAGE REVENUE--SINGLE FAMILY (4.3%)
     4,975     California Housing Finance Agency, Home Cap Apprec 1983 Ser B....       0.00           8/ 1/15           523,121
     6,575     Illinois Housing Development Authority, 1991 Ser C-2 RIBS (AMT)..       10.607+        2/ 1/18         7,437,969
    40,000     Maryland Community Development Administration, Cap Apprec 1983
                Second Ser......................................................        0.00          4/ 1/15         4,958,400
     5,500     Nebraska Investment Finance Authority, GNMA-Backed 1990 Ser 2
                RIBS (AMT)......................................................       12.039+        9/10/30         6,414,375
     4,010     North Carolina Housing Finance Agency, Ser Q (AMT)...............        8.00          3/ 1/18         4,301,006
     3,900     Ohio Housing Finance Agency, GNMA-Backed 1991 Ser A-2 RIBS
                (AMT)...........................................................       10.998+        3/24/31         4,465,500
               Pennsylvania Housing Finance Agency,
     8,000      Ser 1993--37A...................................................        5.45         10/ 1/17         7,904,720
     5,000      Ser 1991--31C RIBS (AMT)........................................       11.364+       10/ 1/23         5,706,250
     4,000      Ser 1992--RIBS (AMT)............................................        9.175+        4/ 1/25         4,210,000
               Tennessee Housing Development Agency, Mortgage Finance
     4,000      1993 Ser A......................................................        5.90          7/ 1/18         4,083,720
    12,700      1993 Ser A......................................................        5.95          7/ 1/28        12,911,328
     5,000     Wisconsin Housing & Economic Development Authority, Home
                Ownership 1991 Ser 3 RIBS (AMT).................................       11.326+       10/25/22         5,875,000
  --------                                                                                                        -------------
   103,660                                                                                                           68,791,389
  --------                                                                                                        -------------

</TABLE>

<PAGE>

         
DEAN WITTER TAX-EXEMPT SECURITIES TRUST
<TABLE>
PORTFOLIO OF INVESTMENTS December 31, 1993 (continued)
===================================================================================================================================
<CAPTION>
Principal
Amount (in                                                                            Coupon         Maturity
thousands)                                                                             Rate            Date           Value
- ---------                                                                             ------          ------          -----
<C>            <S>                                                                     <C>           <C>        <C>
               NURSING & HEALTH RELATED FACILITIES REVENUE (0.3%)
 $   4,000     Maine Health & Higher Educational Facilities Authority, Ser 1992 B
 ---------      (FSA Insured)...................................................        5.50 %        7/ 1/22    $    4,006,320
               PUBLIC FACILITIES REVENUE (6.3%)
               Los Angeles Convention & Exhibition Center Authority, California,
    12,500      1993 Refg Ser A (MBIA Insured)..................................        5.375         8/15/18        12,473,625
     9,000      Ser 1985 (Prerefunded)..........................................        9.00         12/ 1/20        12,555,450
     7,000     Palm Beach County, Florida, Criminal Justice Ser 1990 (FGIC Insured)     6.00          6/ 1/13         7,348,530
    10,000     Metropolitan Pier & Exposition Authority, Illinois, McCormick Place
                Ser 1992 A......................................................        6.50          6/15/27        10,709,300
     3,000     Maine Municipal Bond Bank, 1988 Ser B (Prerefunded)..............        7.85         11/ 1/18         3,580,050
    10,000     Michigan Building Authority, 1993 Refg Ser I (AMBAC Insured) ....        5.30         10/ 1/16         9,999,000
     6,000     Saint Louis Industrial Development Authority, Missouri, Kiel Center
                Refg Ser 1992 (AMT).............................................        7.75         12/ 1/13         6,526,200
    14,000     New York State Dormitory Authority, Suffolk County Judicial
                Ser 1986 (ETM)..................................................        7.375         7/ 1/16        17,793,580
               Ohio Building Authority, Correctional
     5,000      1985 Ser C BIGS.................................................        0.00         10/ 1/05         5,012,500
    10,000      1986 Ser A......................................................        7.35          8/ 1/06        11,495,100
     2,000      Refg 1986 Ser B.................................................       7.125          9/ 1/09         2,201,000
  --------                                                                                                        -------------
    88,500                                                                                                           99,694,335
  --------                                                                                                        -------------
               RESOURCE RECOVERY REVENUE (9.0%)
               Connecticut Resources Recovery Authority,
     9,000      American REF-FUEL Co of Southeastern Connecticut 1988 Ser A
                (AMT)...........................................................        8.00         11/15/15        10,451,520
     4,950      Bridgeport RESCO Ser A..........................................        7.625         1/ 1/09         5,493,164
     7,060     Broward County, Florida, SES Broward County South Ser 1984.......        7.95         12/ 1/08         8,057,296
     8,500     Savannah Resource Recovery Development Authority, Georgia,
                Savannah Energy Systems Co Ser 1992.............................        6.30         12/ 1/06         9,122,200
    13,050     Northeast Maryland Waste Disposal Authority, Montgomery County
                Ser 1993 A (AMT)................................................        6.30          7/ 1/16        13,670,006
               Massachusetts Industrial Finance Agency, SEMASS
    15,000      Ser 1991 A......................................................        9.00          7/ 1/15        17,110,050
    20,000      Ser 1991 B (AMT)................................................        9.25          7/ 1/15        22,911,400
     3,000     Greater Detroit Resource Recovery Authority, Michigan, Ser C.....        9.25         12/13/08         3,281,400
     9,000     Mercer County Improvement Authority, New Jersey, Refg Ser A 1992
                (AMT) (FGIC Insured)............................................        6.70          4/ 1/13        10,116,090
     9,000     Union County Utilities Authority, New Jersey, 1991 Ser A (AMT)...        7.20          6/15/14        10,039,500
    10,000     Hempstead Industrial Development Agency, New York, 1985 American
                REF-FUEL Co of Hempstead........................................        7.40         12/ 1/10        10,902,000
     9,680     New York State Environmental Facilities Corporation, Huntington
                1989 Ser A (AMT)................................................        7.50         10/ 1/12        10,652,840
     5,000     Onondaga County Resource Recovery Agency, New York, 1992 Ser
                (AMT)...........................................................        6.875         5/ 1/06         5,404,750
     5,000     Fairfax County Economic Development Authority, Virginia,
                Ogden Martin Systems of Fairfax Inc Ser 1988 A (AMT)............        7.75          2/ 1/11         5,761,150
  --------                                                                                                        -------------
   128,240                                                                                                          142,973,366
  --------                                                                                                        -------------
               RETIREMENT & LIFECARE FACILITIES REVENUE (0.00%)
     2,268     Alachua County, Florida, Atrium Apartments Ser 1990 (b)..........        9.00         10/15/05            79,453
  --------                                                                                                        -------------
               TRANSPORTATION FACILITIES REVENUE (14.4%)
    10,000     San Francisco Bay Area Rapid Transit District, California, Sales Tax
                Ser 1985 (Prerefunded)..........................................        9.00          7/ 1/11        11,152,600
               Connecticut, Infrastructure
     4,000      1988 Ser C (Prerefunded)........................................        7.50         10/ 1/05         4,671,800
     3,000      1988 Ser C (Prerefunded)........................................       7.50          10/ 1/06         3,503,850

</TABLE>

<PAGE>

         
DEAN WITTER TAX-EXEMPT SECURITIES TRUST
<TABLE>
PORTFOLIO OF INVESTMENTS December 31, 1993 (continued)
===================================================================================================================================
<CAPTION>
Principal
Amount (in                                                                            Coupon         Maturity
thousands)                                                                             Rate            Date           Value
- ---------                                                                             ------          ------          -----
<C>            <S>                                                                     <C>           <C>        <C>
               Mid-Bay Bridge Authority, Florida,
 $   8,965      Sr Lien Crossover Refg Ser 1993 A...............................        6.00 %       10/ 1/13    $    9,332,386
     2,500      Jr Lien Advance Refg Ser 1993 D.................................        6.125        10/ 1/22         2,568,225
     2,500      Ser 1991 A (Crossover Refunded).................................        6.875        10/ 1/22         3,152,125
    10,000     Atlanta, Georgia, Airport Ser 1990 (AMT).........................        6.25          1/ 1/21        10,628,900
     8,100     Metropolitan Atlanta Rapid Transit Authority, Georgia, Sales Tax
                Refg Ser K......................................................        7.25          7/ 1/10         9,148,545
     5,000     Hawaii, Airports Second Ser 1991 (AMT)...........................        7.00          7/ 1/18         5,509,400
     7,900     Chicago, Illinois, Chicago--O'Hare Intl Airport Refg 1993 Ser A..        5.00          1/ 1/16         7,437,771
               Kentucky Turnpike Authority,
     5,135      Economic Development Road Revitalization Ser 1990 (Prerefunded).        7.25          5/15/10         6,039,325
    30,000      Resource Recovery Road Refg 1987 Ser A..........................        5.00          7/ 1/08        29,907,600
     7,000     Maryland Transportation Authority, Ser 1985 (Prerefunded)........        9.00          7/ 1/15         7,735,560
               Massachusetts Port Authority,
     2,255      Refg Ser 1985 B.................................................        9.375         7/ 1/15         2,490,805
     5,745      Refg Ser 1985 B (Prerefunded)...................................        9.375         7/ 1/15         6,377,295
               New Jersey Highway Authority, Sr Parkway
    11,000      Refg Ser 1992...................................................        6.25          1/ 1/14        11,900,680
    10,000      1986 Ser (Prerefunded)..........................................        7.125         1/ 1/14        10,915,600
      630       1989 Ser........................................................        6.00          1/ 1/19           650,261
     1,370      1989 Ser (ETM)..................................................        6.00          1/ 1/19         1,532,729
               Albuquerque, New Mexico, Gross Receipts Tax--Airport Supported
     7,000      Sub Lien Ser 12/84..............................................        8.25          7/ 1/14         7,681,100
     7,000      Sub Lien Ser 12/84..............................................        8.25          7/ 1/14         7,683,270
    10,000     Port Authority of New York & New Jersey, Cons 53rd Ser...........        8.70          7/15/20        10,976,700
               Pennsylvania Turnpike Commission,
     5,000      Ser L of 1991 (MBIA Insured)....................................        6.00          6/ 1/15         5,302,200
    15,000      Ser A of 1986...................................................        6.00         12/ 1/17        15,320,100
     6,000      Ser K of 1989 (Prerefunded).....................................        7.50         12/ 1/19         7,159,680
    15,000     Puerto Rico Highway & Transportation Authority, Refg Ser X.......        5.50          7/ 1/15        15,237,300
     4,000     Virginia Transportation Board, US Route 58 Corridor Ser 1993 B...        5.625         5/15/13         4,123,480
     9,000     Port of Seattle, Washington, Ser 1992 B (AMT)....................        6.00         11/ 1/17         9,285,210
  --------                                                                                                        -------------
   213,100                                                                                                          227,424,497
  --------                                                                                                        -------------
               WATER & SEWER REVENUE (9.3%)
     7,500     South Central Connecticut Regional Water Authority, 1986 Ser
                (Prerefunded)...................................................        7.125         8/ 1/12         8,302,725
    10,000     Atlanta, Georgia, Water & Sewer Ser 1985 (Prerefunded)...........        9.50          1/ 1/08        10,890,600
     4,750     Baltimore, Maryland, Water Refg Ser 1990-A (MBIA Insured)
                (Prerefunded)...................................................        6.50          7/ 1/20         5,371,585
               Boston Water & Sewer Commission, Massachusetts,
     6,000      Ser A 1984 (Prerefunded)........................................        7.00          1/ 1/11         6,388,200
     2,315      Ser A 1986 (Prerefunded)........................................        7.875        11/ 1/13         2,601,551
     1,440      Ser A 1986 (Prerefunded)........................................        7.875        11/ 1/13         1,638,720
               Massachusetts Water Resources Authority,
    10,000      Refg 1992 Ser B.................................................        5.50         11/ 1/15         9,843,000
    14,250      1993 Ser C......................................................        5.25         12/ 1/15        13,887,053
     4,000     Detroit, Michigan, Sewage Refg Ser 1993--A (FGIC Insured)........        5.70          7/ 1/13         4,132,960
     8,500     Albuquerque, New Mexico, Joint Water & Sewer 1986 Ser A..........        6.00          7/ 1/15         8,785,855
               New York City Municipal Water Finance Authority, New York,
     8,500      1994 Ser B......................................................        5.30          6/15/06         8,491,925
     3,700      1991 Ser C (Prerefunded)........................................        7.375         6/15/13         4,461,312
     5,000      1986 Ser B (Prerefunded)........................................        7.875         6/15/16         5,616,450
    10,000      1993 Ser A......................................................         6.00         6/15/17        10,344,900
     2,500     Hamilton County, Ohio, Sewer 1985 Ser A (Prerefunded)............        7.50         12/ 1/10         2,774,425
    10,000     Philadelphia, Pennsylvania, Water & Wastewater Ser 1993
                (Capital Guaranty Insured)......................................        5.50          6/15/15        10,024,800
     6,000     San Antonio, Texas, Prior Lien Sewer Impr & Refg Ser 1986
                (Prerefunded)...................................................        7.25          5/ 1/12         6,615,840

</TABLE>

<PAGE>

         
DEAN WITTER TAX-EXEMPT SECURITIES TRUST
<TABLE>
PORTFOLIO OF INVESTMENTS December 31, 1993 (continued)
===================================================================================================================================
<CAPTION>
Principal
Amount (in                                                                            Coupon         Maturity
thousands)                                                                             Rate            Date           Value
- ---------                                                                             ------          ------          -----
<C>            <S>                                                                     <C>           <C>        <C>
 $  13,000     Fairfax County, Virginia, Sewer Ser A (AMBAC Insured) (Prerefunded)      7.00 %       11/15/16    $   15,094,430
    10,000     Richmond, Virginia, Public Utilities Ser A (Prerefunded).........        8.00          1/15/18        11,652,400
  --------                                                                                                        -------------
   137,455                                                                                                          146,918,731
  --------                                                                                                        -------------
               OTHER REVENUE (2.3%)
     3,500     Denver, Colorado, Excise Tax Ser 1985 A..........................        5.00         11/ 1/08         3,503,325
               New York Local Government Assistance Corporation,
    11,000      Ser 1993 C Refg.................................................        5.50          4/ 1/17        11,143,660
     8,000      Ser 1991 D (Prerefunded)........................................        7.00          4/ 1/18         9,540,080
    11,000     New York State Dormitory Authority, The Metropolitan Museum of Art
                Ser 1987 (Prerefunded)..........................................        7.625         7/ 1/15        11,659,340
 ---------                                                                                                        -------------
    33,500                                                                                                           35,846,405
 ---------                                                                                                        -------------
 1,464,469     TOTAL MUNICIPAL BONDS (IDENTIFIED COST $1,340,377,418)...........                                  1,500,891,249
 ---------                                                                                                        -------------
               SHORT-TERM MUNICIPAL OBLIGATIONS (3.9%)
    13,000     San Francisco Redevelopment Agency, California, Bayside Village
                Ser 1985 A (Tender 1/6/94)......................................        2.80*        12/ 1/05        13,000,000
    12,000     Volusia County Health Facilities Authority, Florida, Pooled Ser 1985
                (FGIC Insured) (Tender 1/5/94)..................................        3.50*        11/ 1/15        12,000,000
    12,150     Illinois Health Facilities Authority, Resurrection Health Care
                Ser 1993 (Tender 1/3/94)........................................        4.50*         5/ 1/11        12,150,000
     4,000     Ascension Parish, Louisiana, Shell Oil Co (Tender 1/3/94)........        4.75*         9/ 1/23         4,000,000
    12,300     Louisiana Recovery District, Sales Tax Ser 1988 (FGIC Insured)
                (Tender 1/3/94).................................................        4.30*         7/ 1/97        12,300,000
     4,000     Massachusetts, Dedicated Income Tax Ser 1990 B (Tender 1/3/94)...        4.25*        12/ 1/97         4,000,000
     4,200     District of Columbia, Ser 1992 A--3 (Tender 1/3/94)..............        4.25*        10/ 1/07         4,200,000
- ----------                                                                                                        -------------
    61,650     TOTAL SHORT-TERM MUNICIPAL OBLIGATIONS
                (IDENTIFIED COST $61,650,000)...................................                                     61,650,000
- ----------                                                                                                        -------------
$1,526,119     TOTAL INVESTMENTS (IDENTIFIED COST $1,402,027,418) (C)...........        98.8%                     1,562,541,249
- ---------
- ---------      CASH AND OTHER ASSETS IN EXCESS OF LIABILITIES...................          1.2                        19,444,797
                                                                                        -----                    --------------
               NET ASSETS.......................................................       100.0%                    $1,581,986,046
                                                                                        -----                    --------------
                                                                                        -----                     -------------
<FN>
+    Current coupon rate for residual interest bonds. This rate resets periodically as the auction rate on the related short-term
     securities fluctuates.
 *   Variable or floating rate securities. Coupon rate shown reflects current rate.
(a)  Security purchased on a when issued basis.
(b)  Security in default. Partial interest paid. Interest income is recorded as received.
(c)  The aggregate cost for federal income tax purposes is $1,402,027,418; the aggregate gross unrealized appreciation is
     $172,969,734 and the aggregate gross unrealized depreciation is $12,455,903, resulting in net unrealized appreciation of
     $160,513,831.

                                                 See Notes to Financial Statements
</TABLE>


<PAGE>

         
DEAN WITTER TAX-EXEMPT SECURITIES TRUST
FINANCIAL STATEMENTS
===============================================================================
STATEMENT OF ASSETS AND LIABILITIES
December 31, 1993
===============================================================================
ASSETS:
Investments in securities, at value
 (identified cost $1,402,027,418) (Note 1).............        $1,562,541,249
Cash...................................................             3,053,570
Receivable for:
 Interest..............................................            27,990,205
 Shares of beneficial interest sold....................             2,499,071
Prepaid expenses.......................................                22,699
                                                                -------------
     TOTAL ASSETS......................................         1,596,106,794
                                                                -------------
LIABILITIES:
Payable for:
 Investments purchased.................................             8,967,287
 Shares of beneficial interest repurchased.............               360,980
Investment management fee payable (Note 2).............               544,937
Dividends and distributions to shareholders (Note 6)...             4,049,291
Accrued expenses (Note 3)..............................               198,253
                                                                -------------
     TOTAL LIABILITIES.................................            14,120,748
                                                                -------------
NET ASSETS:
Paid-in-capital........................................         1,418,230,317
Accumulated realized gain on investments--net..........             3,241,898
Unrealized appreciation on investments--net............           160,513,831
                                                               --------------
     NET ASSETS........................................        $1,581,986,046
                                                               --------------
                                                               --------------

NET ASSET VALUE PER SHARE, 127,473,938
 shares outstanding (unlimited authorized
 shares of $.01 par value).............................                $12.41
                                                                       ------
                                                                       ------
MAXIMUM OFFERING PRICE PER SHARE (net asset
 value plus 4.17% of net asset value)*.................                $12.93
                                                                       ------
                                                                       ------
  *On sales of $25,000 or more the offering price is reduced.

===============================================================================
STATEMENT OF OPERATIONS
For the year ended December 31, 1993
===============================================================================

INVESTMENT INCOME:
 INTEREST INCOME.......................................          $ 98,381,785
                                                                 ------------
 EXPENSES
  Investment management fee (Note 2)...................             6,085,516
  Transfer agent fees and expenses (Note 3)............               462,531
  Registration fees....................................               123,269
  Professional fees....................................                54,007
  Shareholder reports and notices......................                51,968
  Custodian fees.......................................                43,152
  Trustees' fees and expenses (Note 3).................                35,671
  Other................................................                51,010
                                                                   ----------
     TOTAL EXPENSES....................................             6,907,124
                                                                   ----------
    INVESTMENT INCOME--NET.............................            91,474,661
                                                                   ----------
REALIZED AND UNREALIZED GAIN ON
 INVESTMENTS--NET (Note 1):
 Realized gain on investments--net.....................             8,324,995
 Change in unrealized appreciation on
  investments--net.....................................            54,678,906
                                                                   ----------
     NET GAIN ON INVESTMENTS...........................            63,003,901
                                                                   ----------
    NET INCREASE IN NET ASSETS
     RESULTING FROM OPERATIONS.........................          $154,478,562
                                                                 ------------
                                                                 ------------

<PAGE>

         
<TABLE>
STATEMENT OF CHANGES IN NET ASSETS
===================================================================================================================================
<CAPTION>
                                                                                         For the year           For the year
                                                                                             ended                  ended
                                                                                       December 31, 1993      December 31, 1992
                                                                                       -----------------    --------------------
<S>                                                                                     <C>                   <C>

INCREASE (DECREASE) IN NET ASSETS:
 Operations:
  Investment income--net........................................................        $   91,474,661         $   82,371,019
  Realized gain on investments--net.............................................             8,324,995              4,179,591
  Change in unrealized appreciation on investments--net.........................            54,678,906             19,231,201
                                                                                         --------------        --------------
 Net increase in net assets resulting from operations...........................           154,478,562            105,781,811
                                                                                         -------------          -------------
 Dividends and distributions to shareholders from:
  Investment income--net........................................................           (91,474,661)           (82,370,979)
  Realized gain on investments--net.............................................              (701,643)               -0-
                                                                                         -------------          -------------
                                                                                           (92,176,304)           (82,370,979)
                                                                                         -------------          -------------
 Transactions in shares of beneficial interest--net increase (Note 5)...........           196,214,972            155,342,190
                                                                                         -------------          -------------
     Total increase.............................................................           258,517,230            178,753,022
NET ASSETS:
 Beginning of period............................................................         1,323,468,816          1,144,715,794
                                                                                         --------------        --------------
 END OF PERIOD..................................................................        $1,581,986,046         $1,323,468,816
                                                                                         --------------        --------------
                                                                                         --------------        --------------
                                                 See Notes to Financial Statements
</TABLE>

<PAGE>

         
DEAN WITTER TAX-EXEMPT SECURITIES TRUST
NOTES TO FINANCIAL STATEMENTS
===============================================================================

1. ORGANIZATION AND ACCOUNTING POLICIES--Dean Witter Tax-Exempt Securities
Trust (the "Fund") is registered under the Investment Company Act of 1940, as
amended (the "Act"), as a diversified, open-end management investment company
and was originally incorporated in Maryland in 1979 and reorganized as a
Massachusetts business trust on April 30, 1987. The Fund commenced operations
on March 27, 1980.

        The following is a summary of significant accounting policies:

        A. Valuation of Investments--Portfolio securities are valued for the
Fund by an outside independent pricing service approved by the Fund's Trustees.
The pricing service has informed the Fund that in valuing the Fund's portfolio
securities, it uses both a computerized grid matrix of tax-exempt securities
and evaluations by its staff, in each case based on information concerning
market transactions and quotations from dealers which reflect the bid side of
the market each day. The Fund's portfolio securities are thus valued by
reference to a combination of transactions and quotations for the same or other
securities believed to be comparable in quality, coupon, maturity, type of
issue, call provisions, trading characteristics and other features deemed to be
relevant.

        B. Accounting for Investments--Security transactions are accounted for
on the trade date (date the order to buy or sell is executed). Realized gains
and losses on security transactions are determined on the identified cost
method. Net investment income includes amortization of premiums and original
issue discounts. Additionally, with respect to market discount on bonds
purchased after April 30, 1993, a portion of any capital gain realized upon
disposition is recharacterized as taxable investment income. Interest income is
accrued daily except where collection is not expected.

        C. Federal Income Tax Status--It is the Fund's policy to comply with
the requirements of the  Internal Revenue Code applicable to regulated
investment companies and to distribute all of its  taxable and non-taxable
income to its shareholders. Accordingly, no federal income tax provision is
required.

        D. Dividends and Distributions to Shareholders--The Fund records
dividends and distributions to its shareholders on the record date. The amount
of dividends and distributions from net investment income and net realized
capital gains are determined in accordance with federal income tax regulations,
which may differ from generally accepted accounting principles. These
"book/tax" differences are either considered temporary or permanent in nature.
To the extent these differences are permanent in nature, such amounts are
reclassified within the capital accounts based on their federal tax-basis
treatment; temporary differences do not require reclassifications. Dividends
and distributions which exceed net investment income and net realized capital
gains for financial reporting purposes but not for tax purposes are reported as
dividends in excess of net investment income or distributions in excess of net
realized capital gains. To the extent they exceed net investment income and net
realized capital gains for tax purposes, they are reported as distributions of
paid-in-capital.

2. TRANSACTIONS WITH INVESTMENT MANAGER--Pursuant to an Investment Management
Agreement (the "Agreement") with Dean Witter InterCapital Inc. (the "Investment
Manager"), the Fund pays its Investment Manager a management fee, accrued daily
and payable monthly, by applying the following annual rates to the daily net
assets of the Fund determined as of the close of each business day: 0.50% of
the portion of the daily net assets not exceeding $500 million; 0.425% of the
portion of the daily net assets exceeding $500 million but not exceeding $750
million; 0.375% of the portion of the daily net assets exceeding $750 million
but not exceeding $1 billion; 0.35% of the portion of the daily net assets
exceeding $1 billion but not exceeding $1.25 billion; and 0.325% of the portion
of the daily net assets exceeding $1.25 billion. Under the terms of


<PAGE>

         
DEAN WITTER TAX-EXEMPT SECURITIES TRUST
NOTES TO FINANCIAL STATEMENTS (continued)
===============================================================================

the Agreement, in addition to managing the Fund's investments, the Investment
Manager maintains certain of the Fund's books and records and furnishes office
space and facilities, equipment, clerical, bookkeeping and certain legal
services, and pays the salaries of all personnel, including officers of the
Fund who are employees of the Investment Manager. The Investment Manager also
bears the cost of telephone services, heat, light, power and other utilities
provided to the Fund.

         Shares of the Fund are distributed by Dean Witter Distributors Inc.,
(the Distributor), an affiliate of the Investment Manager. The Distributor has
informed the Fund that it received approximately $7,812,000 in commissions from
the sale of the Fund's shares of beneficial interest for the year ended
December 31, 1993. Such commissions are not an expense of the Fund; they are
deducted from the proceeds of the sales of the shares of beneficial interest.

3. SECURITY TRANSACTIONS AND TRANSACTIONS WITH AFFILIATES--The cost of
purchases and the proceeds from sales of portfolio securities for the year
ended December 31, 1993, excluding short-term investments, aggregated
$321,605,788 and $186,553,030, respectively.

         On April 1, 1991 the Fund established an unfunded noncontributory
defined benefit pension plan covering all independent Trustees of the Fund who
will have served as independent Trustees for at least five years at the time of
retirement. Benefits under this plan are based on years of service and
compensation during the last five years of service. Aggregate pension costs for
the year ended  December 31, 1993, included in Trustees' fees and expenses in
the Statement of Operations, amounted to $12,232. At December 31, 1993 the Fund
had an accrued pension liability of $39,299 which is  included in  accrued
expenses in the Statement of Assets and Liabilities.

         Dean Witter Trust Company ("DWTC"), an affiliate of the Investment
Manager, is the Fund's transfer agent. During the year ended December 31, 1993,
the Fund incurred transfer agent fees and  expenses of $462,531 with DWTC, of
which $48,127 was payable at December 31, 1993.

4. FEDERAL INCOME TAX STATUS--During the year ended December 31, 1993, the Fund
utilized all of its net capital loss carryovers of approximately $4,331,000.

<TABLE>
5. SHARES OF BENEFICIAL INTEREST--Transactions in shares of beneficial interest were as follows:
<CAPTION>
                                                   For the year ended                      For the year ended
                                                    December 31, 1993                       December 31, 1992
                                               ---------------------------              -------------------------
                                               Shares              Amount              Shares              Amount
                                               ------              ------              ------              ------
<S>                                          <C>                <C>                  <C>                <C>
Sold.................................        22,369,075         $273,876,016         19,288,589         $226,599,094
Reinvestment of dividends and
 distributions.......................         4,269,905           52,363,197          3,992,396           46,822,621
                                              ---------          -----------          ---------          -----------
                                             26,638,980          326,239,213         23,280,985          273,421,715
Repurchased..........................       (10,610,367)        (130,024,241)       (10,078,275)        (118,079,525)
                                              ---------          -----------          ---------          -----------
Net increase.........................        16,028,613         $196,214,972         13,202,710         $155,342,190
                                              ---------          -----------          ---------          -----------
                                              ---------          -----------          ---------          -----------
</TABLE>
6. DIVIDENDS AND DISTRIBUTIONS--On a daily basis the Fund declares dividends
from its net investment income. Such dividends are payable monthly.


<PAGE>

         
DEAN WITTER TAX-EXEMPT SECURITIES TRUST
<TABLE>
FINANCIAL HIGHLIGHTS
===================================================================================================================================
<CAPTION>
Selected data and ratios for a share of beneficial interest outstanding throughout each period:

                                                                 For the year ended December 31,
                                 ----------------------------------------------------------------------------------------------
                                 1993      1992      1991      1990      1989      1988      1987      1986      1985      1984
                                 ----      ----      ----      ----      ----      ----      ----      ----      ----      ----
<S>                             <C>       <C>       <C>       <C>       <C>       <C>       <C>       <C>      <C>       <C>
PER SHARE OPERATING
 PERFORMANCE:
 Net asset value, beginning of
  period....................... $11.88    $11.65    $11.09    $11.28    $10.96    $10.45    $11.50    $10.79    $ 9.80    $ 9.85
                                ------    ------    ------    ------    ------    ------    ------    ------    ------    ------
  Investment income--net......    0.77      0.79      0.80      0.80      0.81      0.81      0.80      0.85      0.92      1.06
  Realized and unrealized gain
   (loss) on investments--net..   0.54      0.23      0.56     (0.18)     0.32      0.51     (0.97)     1.21      1.07     (0.19)
                                ------    ------    ------    ------    ------    ------    ------    ------    ------    ------
 Total from investment
  operations...................   1.31      1.02      1.36      0.62      1.13      1.32     (0.17)     2.06      1.99      0.87
                                ------    ------    ------    ------    ------    ------    ------    ------    ------    ------

 Less dividends and
  distributions:
  Dividends from net
   investment income...........  (0.77)    (0.79)    (0.80)    (0.81)    (0.81)    (0.81)    (0.83)    (0.87)    (1.00)    (0.92)
  Distributions from net
   realized gain on
   investments.................  (0.01)     -0-       -0-       -0-       -0-       -0-      (0.05)    (0.48)     -0-       -0-
                                ------    ------    ------    ------    ------    ------    ------    ------    ------    ------
 Total dividends and
  distributions................  (0.78)    (0.79)    (0.80)    (0.81)    (0.81)    (0.81)    (0.88)    (1.35)    (1.00)    (0.92)
                                ------    ------    ------    ------    ------    ------    ------    ------    ------    ------
 Net asset value,
  end of period................ $12.41    $11.88    $11.65    $11.09    $11.28    $10.96    $10.45    $11.50    $10.79    $ 9.80
                                ------    ------    ------    ------    ------    ------    ------    ------    ------    ------
                                ------    ------    ------    ------    ------    ------    ------    ------    ------    ------
TOTAL INVESTMENT
 RETURN+.......................  11.23%    9.09%    12.71%     5.86%    10.61%    13.02%    (1.44%)   20.17%    21.35%     9.37%
RATIOS/SUPPLEMENTAL DATA:
 Net assets, end of period
  (in thousands)...............$1,581,986$1,323,469$1,144,716$1,010,355$1,033,250$907,822  $896,419  $965,834  $489,367  $173,147
 Ratio of expenses to average
  net assets...................  0.47%     0.49%     0.51%     0.51%     0.51%     0.54%     0.52%     0.56%     0.61%     0.68%
 Ratio of net investment income
  to average net assets........  6.23%     6.74%     7.05%     7.25%     7.31%     7.51%     7.42%     7.51%     8.90%    11.71%
 Portfolio turnover rate.......    13%        4%       10%       19%       13%       17%       37%       42%     116%      102%
<FN>
- ------------
+ Does not reflect the deduction of sales load.

                                                 See Notes to Financial Statements
</TABLE>

<PAGE>

         
DEAN WITTER TAX-EXEMPT SECURITIES TRUST
REPORT OF INDEPENDENT ACCOUNTANTS
===============================================================================

To the Shareholders and Trustees of Dean Witter Tax-Exempt Securities Trust

In our opinion, the accompanying statement of assets and liabilities, including
the portfolio of investments, and the related statements of operations and of
changes in net assets and the financial highlights present fairly, in all
material respects, the financial position of Dean Witter Tax-Exempt Securities
Trust (the "Fund") at December 31, 1993, the results of its operations for the
year then ended, the changes in its net assets for each of the two years in the
period then ended and the financial highlights for each of the ten years in the
period then ended, in conformity with generally accepted accounting principles.
These financial statements and financial highlights (hereafter referred to as
"financial statements") are the responsibility of the Fund's management; our
responsibility is to express an opinion on these financial statements based on
our audits. We conducted our audits of these financial statements in accordance
with generally accepted auditing standards which require that we plan and
perform the audit to obtain reasonable assurance about whether the financial
statements are free of material misstatement. An  audit includes examining, on
a test basis, evidence supporting the amounts and disclosures in the financial
statements, assessing the accounting principles used and significant estimates
made by management, and evaluating the overall financial statement
presentation. We believe that our audits, which included confirmation of
securities owned at December 31, 1993 by correspondence with the  custodian and
brokers, provide a reasonable basis for the opinion expressed above.
PRICE WATERHOUSE
1177 Avenue of the Americas
New York, New York 10036
February 10, 1994
===============================================================================

                      1993 FEDERAL TAX NOTICE (unaudited)

During the year ended December 31, 1993, the Fund paid to shareholders $0.766
per share from net investment income. All of the Fund's dividends from net
investment income were exempt interest dividends, excludable from gross income
for Federal income tax purposes. For the same period, the Fund paid to
shareholders $0.005523 per share from long-term capital gains.

===============================================================================


<PAGE>

         
TRUSTEES

Jack F. Bennett
Charles A. Fiumefreddo
Edwin J. Garn
John R. Haire
Dr. John E. Jeuck
Dr. Manuel H. Johnson
Paul Kolton
Michael E. Nugent
Albert T. Sommers
Edward R. Telling

OFFICERS

Charles A. Fiumefreddo
Chairman and Chief Executive Officer

Sheldon Curtis
Vice President, Secretary and General Counsel

James F. Willison
Vice President

Thomas F. Caloia
Treasurer

TRANSFER AGENT

Dean Witter Trust Company
Harborside Financial Center--Plaza 2
Jersey City, New Jersey 07311

LEGAL COUNSEL

Sheldon Curtis
Two World Trade Center
New York, New York 10048

INDEPENDENT ACCOUNTANTS

Price Waterhouse
1177 Avenue of the Americas
New York, New York 10036

INVESTMENT MANAGER

Dean Witter InterCapital Inc.
Two World Trade Center
New York, New York 10048

This report is submitted for the general information of shareholders of
the Fund. For more detailed information about the Fund, its officers and
trustees, fees, expenses and other pertinent information, please see
the prospectus of the Fund.

This report is not authorized for distribution to prospective investors
in the Fund unless preceded or accompanied by an effective prospectus.

DEAN WITTER
TAX-EXEMPT
SECURITIES
TRUST
(LOGO)
ANNUAL REPORT
DECEMBER 31, 1993


<PAGE>

         

                    APPENDIX FOR GRAPHIC AND IMAGE MATERIAL
        A graphic image which appears on the first page (shareholder's letter)
of the typeset version of the preceding Annual Report has been omitted in this
EDGAR submission due to its incompatibility with the ASCII format. Pursuant to
Rule 304 of Regulation S-T, the information contained in the typeset graphic
has been fairly and accurately described in narrative and/or tabular form on
the first page (shareholder's letter) of this EDGAR submission file.


<PAGE>

         



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