A portion of the administrative expenses accrued during each business day will be charged to each TSP Fund. A fund's respective portion of administrative expenses will be determined as follows:
Accrued administrative expenses (other than those described in paragraph (b) of this section) will be reduced by accrued forfeitures and accrued earnings on forfeitures, abandoned accounts, and unapplied deposits;
Investment management fees and other accrued administrative expenses attributable only to a particular fund will be charged solely to that fund.
The amount of accrued administrative expenses not covered by forfeitures 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 Funds, based on the respective fund balances on the last business day of the prior month end.