(a) A licensee under this chapter shall maintain tangible shareholders' equity in an amount determined to be adequate by the commissioner from time to time, but in no event shall tangible shareholders' equity be less than five hundred thousand dollars ($500,000). "Tangible shareholders' equity" means shareholders' or members' equity minus intangible assets as determined in accordance with United States generally accepted accounting principles.

(b) The commissioner at any time may require a licensee to write down any asset held by it to a valuation that will represent its then fair market value. Any receivable or debt due to a licensee that is past due and unpaid for the period of one year shall be charged off, unless it is well secured or is in process of collection.

(c) The aggregate value of a licensee's accounts receivable, excluding money transmission receivables, loans or extensions of credit to any one person, or that person's affiliates, cannot exceed 50 percent of the licensee's tangible shareholders' equity without the advanced written approval of the commissioner. Whenever such amount equals or exceeds 20 percent of the licensee's tangible shareholders' equity, the licensee shall maintain records evidencing such amount and any security or other source of payment for the amount owed, and such other records as the commissioner may require by order or regulation.