MORGAN STANLEY DEAN WITTER INCOME SECURITIES INC
NSAR-A, 1999-05-28
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<PAGE>      PAGE  1
000 A000000 03/31/1999
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014 A000001 DEAN WITTER REYNOLDS INC.
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014 B000002 8-15869
015 A000001 THE BANK OF NEW YORK
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SIGNATURE   BARRY FINK
TITLE       VICE PRESIDENT


WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000093284
<NAME> MSDW INCOME SECURITIES INC.

<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          SEP-30-1999
<PERIOD-END>                               MAR-31-1999
<INVESTMENTS-AT-COST>                      210,313,760
<INVESTMENTS-AT-VALUE>                     211,592,096
<RECEIVABLES>                                4,619,574
<ASSETS-OTHER>                                   4,951
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             216,216,621
<PAYABLE-FOR-SECURITIES>                             0
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<TOTAL-LIABILITIES>                            231,674
<SENIOR-EQUITY>                                      0
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<SHARES-COMMON-STOCK>                       11,845,218
<SHARES-COMMON-PRIOR>                       11,850,218
<ACCUMULATED-NII-CURRENT>                      981,065
<OVERDISTRIBUTION-NII>                               0
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<OVERDISTRIBUTION-GAINS>                             0
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<REALIZED-GAINS-CURRENT>                       907,044
<APPREC-INCREASE-CURRENT>                   10,491,761
<NET-CHANGE-FROM-OPS>                        1,689,193
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                    7,818,031
<DISTRIBUTIONS-OF-GAINS>                             0
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[AVG-DEBT-OUTSTANDING]                               0
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</TABLE>


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