Gambling service suppliers (service suppliers) must maintain records that document services they provide and receipts of payments for those services.

(1) Service suppliers must maintain an accounting system that includes, at least:

(a) Sales invoices - Sales invoices or detailed monthly billing statements issued to each customer. Service suppliers must maintain copies of these invoices or billing statements on their premises; and

(b) Sales journal - The sales journal must contain, at least, the following by month:

(i) Date of sale; and

(ii) The invoice number; and

(iii) The name of the person paying; and

(iv) Category of each service provided; and

(v) Payment amount; and

(c) Cash receipts - Service suppliers must record all cash receipts in an original book of entry like a sales journal, a check register, or a separate cash receipts journal. This record must include cash sales and cash received from all sources and, at least the following, by month:

(i) Date the payment was received; and

(ii) Name of the person paying; and

(iii) Payment amount; and

(d) Bank statements - Service suppliers must maintain copies of all deposits, deposit slips, and receipts; and

(e) General ledger - Service suppliers whose gambling related activities are greater than five hundred thousand dollars per year must have a general ledger which contains, in addition to all other accounts by month, a separate sales account for each type of activity; and

(f) Copies of all financial data - Service suppliers must maintain copies of all financial data that supports tax reports to governmental agencies.

(2) Service suppliers must:

(a) Maintain copies of all contracts they enter into with their customers which fully disclose all terms; and

(b) Keep and maintain required records for three years following the end of their fiscal year.