A silent auction checkout form is the single sheet a winning bidder completes at the payment station to finalize the sale and create the record your organization needs for accounting and IRS compliance. It captures who won what, the winning bid, the item’s fair market value, and how the bidder paid. Done well, it doubles as the source document for the receipts and acknowledgment letters you owe donors after the event.
Fields the Form Needs
A form missing fields creates problems you won’t notice until weeks later, when you’re reconciling payments or drafting acknowledgment letters. At minimum, include:
- Bidder’s full legal name, mailing address, phone, and email. The legal name and address are what the IRS acknowledgment rules require.
- Bidder number or table number, so volunteers can tie the winner back to your registration list.
- Item number and a specific description transferred from the bid sheet. “Framed watercolor by Jane Doe, 18×24” beats “artwork.”
- Winning bid amount, confirmed from the closed bid sheet.
- Fair market value, pre-populated from your catalog.
- Payment method and a reference number (transaction ID, check number).
- Amount paid and any balance due.
- Volunteer initials, in case a dispute surfaces later.
- A checkbox confirming the bidder received a receipt at checkout.
Pre-printing the fair market value from your auction catalog before doors open speeds the line and cuts transcription errors.
Setting Fair Market Value Before Bidding Opens
The fair market value on the form is the figure that makes a bidder’s charitable deduction possible, so it has to be set, and published, before anyone bids. The IRS defines fair market value as the price an item would sell for on the open market between a willing buyer and a willing seller, each with reasonable knowledge of the facts.1Internal Revenue Service. Publication 561, Determining the Value of Donated Property A bidder can deduct only the amount paid above that value, and only if they knew the value before bidding.2Internal Revenue Service. Charity Auctions
For items with an obvious retail price (a gift card, a new television, a hotel package with a published rate), the number is easy. For unique or hard-to-price items, the IRS points to the cost or selling price of similar items, replacement cost minus depreciation, and professional appraisals.1Internal Revenue Service. Publication 561, Determining the Value of Donated Property If you label an experience “priceless” and assign no value, the winning bid itself becomes the fair market value and the buyer gets no deduction at all. Assigning a nominal value ($1, say) preserves most of the deduction. Whatever you choose, publish it in the catalog; a figure written on the receipt after the sale does not satisfy the advance-knowledge requirement.
Donated services deserve a note. The person donating the service cannot deduct the value of their time or labor.3Internal Revenue Service. Publication 526, Charitable Contributions The winning bidder, though, follows the normal rule: anything paid above the fair market value of the service is deductible. Assign the service a reasonable fair market value and print it before bidding starts.
Running the Checkout Table
Once bidding closes, volunteers direct winners to a payment area where pre-filled forms are waiting. Each winner confirms name and bidder number, verifies the item and winning bid against the bid sheet, and picks a payment method. Accepting credit cards, checks, cash, and mobile wallets covers nearly everyone. Credit card processing runs roughly 2% to 4% of each transaction; build that into your budget rather than tacking a surcharge onto bidders at the table.
Cash payments need to be receipted on the spot: write the amount on the form, have the bidder sign, and issue a numbered receipt. For checks, record the check number. Once payment clears, a volunteer cross-references the paid form against the item’s inventory tag and releases the item. Your organization keeps a signed copy; the bidder leaves with a receipt.
The $75 Quid Pro Quo Disclosure
Every auction purchase above $75 triggers a federal disclosure obligation, and this is the main reason the form exists in the shape it does. The IRS treats these transactions as quid pro quo contributions: the bidder gets something of value in exchange for a payment that partly benefits the charity.4Internal Revenue Service. Charitable Contributions: Quid Pro Quo Contributions
For any quid pro quo contribution over $75, your written statement must tell the donor two things: that the deduction is limited to the amount paid above the fair market value of what they received, and the organization’s good-faith estimate of that fair market value.4Internal Revenue Service. Charitable Contributions: Quid Pro Quo Contributions If a bidder pays $200 for an item valued at $120, the disclosure tells them $80 is deductible.
Skipping the disclosure costs $10 per contribution, capped at $5,000 per event.5Office of the Law Revision Counsel. 26 U.S. Code 6714 A reasonable-cause defense exists but relying on it is a gamble. Printing the fair market value and the deductible amount directly on the checkout form or the receipt handles the disclosure automatically for every sale.
Written Acknowledgments After the Event
The forms you collected become the raw material for the acknowledgment letters donors need to claim deductions. Any donor whose deductible contribution (the amount paid above fair market value) reaches $250 or more has to receive a contemporaneous written acknowledgment before they file their return.6Office of the Law Revision Counsel. 26 U.S. Code 170
The acknowledgment has to include the organization’s name, the cash amount contributed, a description of any non-cash property, and a good-faith estimate of the value of goods or services the organization provided in return.7Internal Revenue Service. Charitable Contributions: Written Acknowledgments For an auction, the “goods or services provided” is the item, valued at the fair market value you published. The letter states the winning bid, the fair market value, and the resulting deductible amount. Note the structure: the acknowledgment describes the item but does not assign it a value; the value shown is the fair market value of what the donor received in exchange. Many organizations send these within a few weeks of the event rather than during tax-filing season.
When Someone Donates the Item: Forms 8283 and 8282
Separate rules apply when a person donates a physical item to the auction, not when a bidder buys one. If the donated item’s claimed value exceeds $500, the donor files Form 8283 with their tax return.8Internal Revenue Service. About Form 8283, Noncash Charitable Contributions For items the donor values above $5,000, your organization may need to sign Section B confirming receipt.
On the organization’s side, selling donated property within three years of receiving it (which is what happens at every auction) triggers Form 8282 for any item originally claimed at more than $5,000.9Internal Revenue Service. About Form 8282, Donee Information Return The filing is due within 125 days of the sale. Items appraised below $500 are exempt. Keep your checkout forms organized by item so you can match the sale price to the original donation when you prepare the return.
Sales Tax
Your organization’s tax-exempt status for purchases does not automatically exempt it from collecting sales tax on items it sells at auction. Most states treat auction sales as retail transactions and expect the nonprofit to collect and remit sales tax on the portion of the payment representing the item’s value. Some states carve out exemptions for occasional or infrequent nonprofit sales, but the rules vary. Check with your state’s department of revenue before the event; if you have to collect, you may also need a sales tax permit. Decide in advance whether to add the tax to the winning bid or absorb it from proceeds, and brief the checkout volunteers accordingly.
Credit Card Data on Paper
If volunteers write credit card numbers on paper forms, you are handling cardholder data covered by the Payment Card Industry Data Security Standard. PCI DSS applies regardless of nonprofit status or event size. At minimum, never record the three-digit security code, limit who can see full card numbers, and securely destroy paper forms once the transaction is processed. A mobile card reader or tablet-based payment system at the checkout table avoids the problem by keeping the card number off your paperwork entirely.
Keeping the Records
Hold onto every checkout form, bid sheet, payment receipt, and acknowledgment letter. Exempt organizations have to maintain books and records showing compliance with tax rules, including documentation of receipts and expenditures.10Internal Revenue Service. EO Operational Requirements: Recordkeeping Requirements for Exempt Organizations The three-year window for Form 8282 reporting on high-value donated items is one practical benchmark, though a seven-year retention policy is safer and matches what most accountants recommend for nonprofit financial records. Keep digital copies alongside any paper originals so a lost box does not erase an entire event’s documentation.