California Code, Financial Code - FIN § 18498

Income from investments shall be recorded in an income account and be used to defray expenses of administration. Income from investments that exceeds an amount determined by the board of directors to be adequate to provide for current expenses may be credited to members' accounts. Each member's account shall receive credit ratably based on the account balance, for the amount of the excess. Income received by Guaranty Corporation, whether or not credited to members' accounts, shall be subject to a demand of the commissioner made pursuant to Section 18490 except as to that portion reserved by the board of directors for expenses of administration during the calendar year.