A portion of the administrative expenses accrued during each business day will be charged to each TSP core fund. A fund's respective portion of administrative expenses will be determined as follows:

(a) Accrued administrative expenses (other than those described in paragraph (b) of this section) will be reduced by:

(1) Accrued forfeitures;

(2) The fees described in §§ 1601.53(a) (relating to the mutual fund window), 1655.21 (relating to loans), 1653.6 (relating to retirement benefits court orders), and 1653.16 (relating to child support court orders) of this chapter; and

(3) Accrued earnings on forfeitures, abandoned accounts, unapplied deposits, and fees described in paragraph (a)(2) of this section.

(b) Investment management fees and other accrued administrative expenses attributable only to a particular fund will be charged solely to that fund.

(c) The amount of accrued administrative expenses not covered by forfeitures, fees, and earnings under paragraph (a) of this section, and not described in paragraph (b) of this section, will be charged on a pro rata basis to all TSP core funds, based on the respective fund balances on the last business day of the prior month end.