<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial
information extracted from Boston Advisors Trust
financial statements at October 31, 2000
and is qualified in its entirety by reference
to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 031
<NAME> Boston Advisors Tax Free Money Market Fund
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> APR-30-2001
<PERIOD-END> OCT-31-2000
<INVESTMENTS-AT-COST> 61,462,288
<INVESTMENTS-AT-VALUE> 61,462,288
<RECEIVABLES> 5,720
<ASSETS-OTHER> 2,931
<OTHER-ITEMS-ASSETS> 20,629
<TOTAL-ASSETS> 61,491,568
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 127,702
<TOTAL-LIABILITIES> 127,702
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 61,364,496
<SHARES-COMMON-STOCK> 61,364,496
<SHARES-COMMON-PRIOR> 0
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 61,364,496
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 1,057,219
<OTHER-INCOME> 0
<EXPENSES-NET> 226,869
<NET-INVESTMENT-INCOME> 830,350
<REALIZED-GAINS-CURRENT> 0
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 830,350
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (830,350)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 144,894,644
<NUMBER-OF-SHARES-REDEEMED> 84,279,626
<SHARES-REINVESTED> 724,478
<NET-CHANGE-IN-ASSETS> 61,339,496
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 138,643
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 252,076
<AVERAGE-NET-ASSETS> 61,798,484
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> 0.01
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (0.01)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> 0.90
</TABLE>
