A business that receives more than $10,000 in cash from one payer - in one payment or in related payments - files Form 8300 within 15 days. Payments from the same payer within 24 hours are one transaction, and installments are counted over twelve months; Countroom adds up every cash payment from the same payer over twelve months, which never undercounts. Cash is currency, and a cashier's check, bank draft, traveler's check or money order with a face value of $10,000 or less. A personal check, a wire and a card are not cash. The form needs the payer's name, address, taxpayer ID and the ID you checked - so a payment that takes a payer past $10,000 waits until you have checked who they are.

Form 8300 is due 15 days after the cash that takes a payer past $10,000 (the next business day when that falls on a weekend). A business that files ten or more other information returns in the year files it electronically through BSA E-Filing. Each payer named on a filed form gets a written statement by January 31 of the next year - your name and address, a contact and phone number, the total cash, and that it was reported to the IRS. You may also file a form for a suspicious transaction of $10,000 or less; that one has no customer statement, and the customer is never told. Keep each form and its papers five years.