(a) Payment by Banks. The Banks shall pay all administrative expenses of the Financing Corporation approved pursuant to § 1271.35.

(b) Amount. The Financing Corporation shall determine the amount of administrative expenses each Bank shall pay in the manner provided by section 21(b)(7)(B) of the Bank Act (12 U.S.C. 1441(b)(7)(B)). The Financing Corporation shall bill each Bank for such amount periodically.

(c) Adjustments. The Financing Corporation shall adjust the amount of administrative expenses the Banks are required to pay in any calendar year pursuant to paragraphs (a) and (b) of this section, by deducting any funds that remain from the amount paid by the Banks for administrative expenses in the prior calendar year.