An auctioneer or auction company that is not required to maintain a trust account shall maintain an account summary sheet which shows the receipts, deposits, expenses and disbursements of each individual auction.
Wis. Admin. Code Department of Safety and Professional Services SPS 125.03
This provision applies only to registrants not required to maintain a trust account. Registrants for whom a trust account is required must use the trust account bookkeeping system described in s. SPS 125.12.