ADDENDUM TO TRANSFER AGENCY AGREEMENT
                      TOUCHSTONE INSTITUTIONAL FUNDS TRUST

This Agreement is entered into as of December 31, 2007 by and between JPMorgan
Chase Bank, N.A. ("JPMorgan") and Touchstone Institutional Funds Trust (the
"Trust").

            WHEREAS, JPMorgan entered into a Transfer Agency Agreement dated as
            of September 17, 2007, (the "Transfer Agency Agreement") with
            respect to the Trust, with an initial term of two years; and

            WHEREAS, JPMorgan and the Trust wish to enter into this Addendum to
            the Transfer Agency Agreement to extend the initial term;

            NOW, THEREFORE, it is agreed by and between the parties hereto as
            follows:

      1.    The Transfer Agency Agreement shall continue through December 31,
            2009, and thereafter may be renewed for successive one year periods
            as set forth in the Transfer Agency Agreement unless it is otherwise
            terminated pursuant to its terms.

      2.    Except for the provisions of this Addendum, the Transfer Agency
            Agreement shall continue in full force and effect and be binding
            upon the parties notwithstanding the execution and delivery of this
            Addendum.

      3.    This Addendum shall be binding upon the parties and, to the extent
            permitted by the Transfer Agency Agreement, their respective
            successors and assigns.

IN WITNESS WHEREOF, each of the parties hereto has caused this Addendum to be
duly executed and delivered in its name and on its behalf by their respective
officers thereunto duly authorized, all as of the day and year first above
written.

JPMORGAN CHASE BANK, N.A.            TOUCHSTONE INSTITUTIONAL FUNDS TRUST


By:           /s/ Roy E. Rogers      By:          /s/ William Dent
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Print Name:                          Print Name:
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Print Title:  SVP                    Print Title: Senior Vice President
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Date:         11-29-07               Date:        December 31, 2007
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