<Page>

     CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES OXLEY ACT OF 2002

This certification is provided pursuant to Section 906 of the Sarbanes-Oxley Act
of 2002, 18 U.S.C. Section 1350, and accompanies the report on Form N-CSR for
the period ended April 30, 2003 of the JPMorgan Tax Aware Large Cap Growth Fund
and JPMorgan Tax Aware Large Cap Value Fund, each a series of J.P. Morgan Mutual
Fund Select Group (the "Registrant").

I, George C.W. Gatch, certify that:


1.   The Form N-CSR fully complies with the requirements of Section 13(a) or
     15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m(a) or 78o(d));
     and

2.   The information contained in the Form N-CSR fairly presents, in all
     material respects, the financial condition and results of operations of the
     JPMorgan Tax Aware Large Cap Growth Fund and JPMorgan Tax Aware Large Cap
     Value Fund, each a series of the Registrant.

/s/ George C.W. Gatch
- --------------------------------------
George C.W. Gatch
President

6/19/03
- --------------------------------------
Date

<Page>

     CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES OXLEY ACT OF 2002

This certification is provided pursuant to Section 906 of the Sarbanes-Oxley Act
of 2002, 18 U.S.C. Section 1350, and accompanies the report on Form N-CSR for
the period ended April 30, 2003 of the JPMorgan Tax Aware Large Cap Growth Fund
and JPMorgan Tax Aware Large Cap Value Fund, each a series of J.P. Morgan Mutual
Fund Select Group (the "Registrant").

I, David Wezdenko, certify that:

1.   The Form N-CSR fully complies with the requirements of Section 13(a) or
     15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m(a) or 78o(d));
     and

2.   The information contained in the Form N-CSR fairly presents, in all
     material respects, the financial condition and results of operations of the
     JPMorgan Tax Aware Large Cap Growth Fund and JPMorgan Tax Aware Large Cap
     Value Fund, each a series of the Registrant.

/s/ David Wezdenko
- --------------------------------------
David Wezdenko
Treasurer

6/18/03
- --------------------------------------
Date