Each savings and loan holding company, which is not an individual, shall pay an initial and an annual registration fee of five hundred dollars ($500) if the registrant’s association subsidiaries have total assets of up to one hundred million dollars ($100,000,000) or one thousand dollars ($1,000) if the subsidiaries have total assets of one hundred million dollars ($100,000,000) or more. These fees shall be paid within 30 days following notice from the commissioner that payment is due.