WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information for the
AIM Strategic Income Fund, April 30, 2000, semi-annual report.
</LEGEND>
<CIK> 0000826644
<NAME> AIM INVESTMENT FUNDS
<SERIES>
<NUMBER> 1
<NAME> AIM STRATEGIC INCOME FUND, CLASS C
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> OCT-31-2000
<PERIOD-END> APR-30-2000
<INVESTMENTS-AT-COST> 165331686
<INVESTMENTS-AT-VALUE> 158366695
<RECEIVABLES> 4733699
<ASSETS-OTHER> 16361
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 163116755
<PAYABLE-FOR-SECURITIES> 16288160
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 979935
<TOTAL-LIABILITIES> 17268095
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 262178227
<SHARES-COMMON-STOCK> 15224183
<SHARES-COMMON-PRIOR> 18527699
<ACCUMULATED-NII-CURRENT> (70890)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (109279608)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (6979069)
<NET-ASSETS> 145848660
<DIVIDEND-INCOME> 383231
<INTEREST-INCOME> 7353477
<OTHER-INCOME> 0
<EXPENSES-NET> (1468972)
<NET-INVESTMENT-INCOME> 6267736
<REALIZED-GAINS-CURRENT> (19993957)
<APPREC-INCREASE-CURRENT> 10689553
<NET-CHANGE-FROM-OPS> (3036668)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (5529126)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 570271
<NUMBER-OF-SHARES-REDEEMED> (4220359)
<SHARES-REINVESTED> 346572
<NET-CHANGE-IN-ASSETS> (42085593)
<ACCUMULATED-NII-PRIOR> (809500)
<ACCUMULATED-GAINS-PRIOR> (89286279)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 613815
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1685504
<AVERAGE-NET-ASSETS> 317491
<PER-SHARE-NAV-BEGIN> 10.14
<PER-SHARE-NII> 0.36
<PER-SHARE-GAIN-APPREC> (0.60)
<PER-SHARE-DIVIDEND> (0.22)
<PER-SHARE-DISTRIBUTIONS> (0.10)
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 9.58
<EXPENSE-RATIO> 1.99
</TABLE>
