Item Economics
Fair market value for silent auction items
Every other number on your auction derives from this one — and so does what your winning bidders can legally deduct. Here is how to determine it and what to do with it.
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In 30 seconds the short answer
- Fair market value is what an item would sell for in ordinary retail — not the donor's cost, and not what you hope it fetches.
- It drives your starting bid, your increment, your item target against goal, and what a winning bidder can legally deduct.
- For experiences with no market equivalent, use a documented good-faith estimate. Never label anything priceless.
The 5-minute version the whole method, condensed
- Gift certificates and cards: face value, always.
- Donated products: current retail price, not the donor's wholesale cost. Valuing from cost systematically undervalues your catalogue.
- Services: what the provider normally charges, with the hours or scope specified.
- Tickets: face value, even for sold-out events.
- Experiences with no equivalent: estimate from the nearest comparable paid thing and write down your reasoning.
- Publish the value by default. It anchors bidders and supports the disclosure you may owe on higher-value purchases.
- Record how you got there — fifteen seconds per item, and it answers three future questions.
Fair market value is the least glamorous field in an auction platform and the most consequential. Your starting bid derives from it. Your increment derives from it. Your item target against your fundraising goal derives from it. And it is the number your organization may be required to disclose in writing to purchasers.
Most committees fill it in from memory in about four seconds per item. It is worth more care than that — not much more, but more.
This page is part of our complete silent auction guide. If you are pricing items right now, work from how to price silent auction items alongside it.
What fair market value means
Fair market value is the price an item would change hands for between a willing buyer and a willing seller, neither under compulsion, both reasonably informed. It is a market question, not a sentiment question.
Two things it is not:
- Not what the donor paid. A restaurant's food cost on a $200 dinner for four might be $60. The value is $200 — that is what a customer would pay for it.
- Not what you hope it will fetch. Hope belongs in the increment, not the valuation.
The distinction matters because bidders price against value. Publish a $400 value on something that is visibly worth $150 and you will not get $400 bids — you will get people quietly deciding your auction is not worth their attention.
How to determine it by item type
| Item type | Fair market value | Watch for |
|---|---|---|
| Gift card or certificate | Face value | Expiry dates and usage restrictions reduce real value — disclose them, don't discount the face value. |
| New retail product | Current retail price | Use the price today, not the price on the box. |
| Used or vintage item | Comparable recent sale prices | Condition drives this more than age does. |
| Professional service | The provider's standard rate | Specify the hours or scope included, or the value is meaningless. |
| Event tickets | Face value | Even for sold-out events. Resale premiums are not fair market value. |
| Travel or accommodation | Published rate for the same dates and room type | Blackout dates materially change what is being sold. Disclose them. |
| Handmade or artwork | Comparable pieces by comparable makers | An artist's own asking price is a reasonable basis if they sell regularly. |
| Bundle or basket | Sum of the components | The bundle may sell for more. That does not raise its value. |
Where a donor supplies a value, treat it as useful information rather than a finding. Donors routinely quote retail on items they have discounted, and occasionally quote their own cost.
Items with no market equivalent
Principal for a day. Front-row seats at the school concert. A parking space with your name on it. Naming a shelter dog. These are frequently the best-performing items in a community auction, and none of them has a retail price.
Estimate from the nearest comparable paid thing and write down how you got there:
- A reserved parking space for a year — local monthly commercial parking rate × 12.
- Two hours of donated handyman work — the local hourly rate × 2.
- A private behind-the-scenes tour — the price of a comparable paid tour.
- A hosted dinner for eight — what a caterer would charge for the same meal.
This is what a good-faith estimate is: a defensible number arrived at by a reasonable method, documented at the time. It does not have to be precise. It has to be honest and explicable.
Should you publish the value?
There is a real argument on both sides, and most guides only give you one of them.
For publishing: value is an anchor. Bidders who cannot tell what something is worth do not know whether $180 is generous or foolish, so many of them do nothing. A published value converts an unknown into a judgement they can make. It also supports the good-faith estimate your organization may need to provide on higher-value purchases.
Against publishing: a published value can act as a ceiling. Bidders looking for a deal stop bidding as the price approaches it, which is exactly the stall that lowering the increment exists to solve. On genuinely unique items where enthusiasm might run well past any sensible valuation, the anchor can cost you.
The practical position most organizations land on: publish values by default, because the anchoring benefit across a whole catalogue outweighs the ceiling effect on a handful of items — and because the disclosure obligations are simpler to satisfy when the number is already visible. Where you have a genuinely one-of-a-kind item, consider whether it belongs in a live auction or a fund-a-need instead, where the dynamics are different.
Why the number matters for tax
Fair market value is the dividing line in a charity auction purchase. In general, a winning bidder can only treat the portion of their payment above fair market value as a charitable contribution. Pay $300 for an item valued at $220 and the potential charitable portion is $80. Pay at or below value and there is typically no deductible portion at all.
This is also why organizations have written disclosure obligations. Under IRC §6115, a charity receiving a quid pro quo payment above $75 must tell the donor that the deductible amount is limited to the excess over the value of goods received, and must provide a good-faith estimate of that value. IRS Publication 1771 sets out the acknowledgement rules in more detail.
Inflating values, then, is not a harmless marketing decision. It misstates a figure your organization is disclosing. Full treatment in silent auction tax deductibility and donation receipts and acknowledgments. Neither is tax advice — confirm your situation with a professional.
Documenting your valuations
Record, per item: the value, how you arrived at it, the source if there was one, who decided, and when. A column in the same sheet you use to track donations is enough.
This takes about fifteen seconds per item and pays off three times — when a bidder queries a value, when your treasurer prepares acknowledgements, and when next year's committee inherits your item list and does not have to start valuation from scratch. See silent auction templates.
Where valuations go wrong
- Using the donor's cost. The most common error, and it systematically undervalues your catalogue.
- Inflating to impress. Bidders notice, bid to real value anyway, and your disclosure is now wrong.
- Valuing a restricted item at its unrestricted price. A hotel stay with six months of blackout dates is not the same product as one without.
- Leaving the field blank. Blank breaks the starting bid calculation, gives bidders no anchor, and leaves you nothing to disclose.
- "Priceless." Reads as evasive and helps nobody.
Key takeaways
- Fair market value is what an item would sell for at ordinary retail — not the donor's cost, not your hopes.
- Gift certificates are face value, products are retail, services are the provider's normal rate.
- For items with no market equivalent, use a documented good-faith estimate based on the nearest comparable paid thing.
- Publishing values anchors bidders and supports disclosure, at the cost of a soft ceiling on a few unique items.
- Winning bidders can generally only treat the amount above fair market value as a charitable contribution.
- Record how you reached each valuation. It takes seconds and answers three future questions.
Enter the value once, and the rest follows
32auctions takes each item's fair market value and calculates the starting bid and minimum increment automatically — so the number you research is the only one you have to think about.
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Frequently asked questions
What is fair market value for a silent auction item?
Fair market value is the price an item would sell for between a willing buyer and a willing seller in an ordinary transaction. For a gift certificate it is face value; for a donated product it is the current retail price rather than what the donor paid; for a service it is the provider's normal rate.
How do you value a donated item with no retail price?
Use a good-faith estimate based on the nearest comparable paid experience, and document how you arrived at it. A reserved parking space can be estimated from local monthly parking rates; donated labour from the local hourly rate. The estimate needs to be honest and explicable, not precise.
Should the fair market value be shown to bidders?
Most organizations show it. A published value gives bidders an anchor so they can judge whether a bid is reasonable, and it supports the good-faith estimate that may need to be disclosed on higher-value purchases. The trade-off is that a visible value can act as a soft ceiling on bidding for unique items.
Is fair market value the same as what the donor paid?
No, and confusing the two is the most common valuation error. A restaurant's cost on a $200 dinner might be $60, but the fair market value is $200 because that is what a customer would pay. Valuing from donor cost systematically undervalues your catalogue.
Why does fair market value affect tax deductibility?
A winning bidder can generally only treat the amount paid above fair market value as a charitable contribution. Under IRC §6115, a charity receiving a quid pro quo payment above $75 must disclose this limitation in writing and provide a good-faith estimate of the value received. This is a summary rather than tax advice.