How to Calculate In-Kind Contributions: FMV, Limits, and Penalties

To calculate an in-kind contribution, start with fair market value: what a willing buyer would pay a willing seller when neither is pressured and both know the relevant facts. From there, the method shifts depending on what was given — goods, use of property, or professional services — and the dollar figure you land on triggers different paperwork and different limits depending on whether you’re the donor claiming a deduction or the nonprofit recording the gift.

Fair Market Value as the Starting Point

For new items donated shortly after purchase, the receipt price is usually the best indicator of value, provided market conditions haven’t shifted between the purchase and the donation.¹

Used items take more work. The IRS points to prices buyers actually pay in consignment shops and thrift stores as a reasonable benchmark.¹ Online resale platforms can help too, but look at completed sales, not aspirational listing prices.

High-value items like artwork and collectibles need a formal qualified appraisal. Once a deduction for a single item or a group of similar items tops $5,000, the IRS requires a signed appraisal from a qualified appraiser and a completed Form 8283.¹

Vehicles Follow Their Own Rules

Donated cars, boats, and airplanes worth more than $500 don’t get valued at blue-book fair market value the way most people assume. Your deduction usually depends on what the charity does with the vehicle. The charity reports its use or sale on Form 1098-C, and you must attach a copy to your return or the deduction is disallowed.²

If the charity sells the vehicle in an arm’s-length transaction, your deduction is limited to the actual sale proceeds or the vehicle’s fair market value on the donation date, whichever is less. You can claim full fair market value only if the charity certifies it will make material improvements before selling, put the vehicle to significant use in its programs, or transfer it to a needy individual well below market. When none of those apply, the deduction caps at $500 or fair market value, whichever is less.² An $8,000 used car can generate a $500 deduction if the charity flips it at auction for less.

Valuing Donated Use of Property

When someone lets a nonprofit use office space, a warehouse, or an event venue for free or at a discount, the calculation is straightforward. Find the going rental rate for similar square footage and amenities in the same area, then subtract whatever the nonprofit actually paid. If space normally rents for $2,000 a month and the nonprofit pays nothing, the contribution’s value is $2,000 per month for the organization’s financial records.

Under GAAP, nonprofits should recognize this contributed use of facilities on their financial statements. Leaving it off understates both revenue and expenses and distorts comparisons with peer organizations.

One boundary worth stating plainly: the donor who provides that free space generally cannot claim a charitable deduction for it. The IRS treats the right to use property as a contribution of less than the donor’s entire interest, and the tax code bars deductions for partial interests.³ Publication 526 gives the direct example: if you own a building and donate rent-free use of one floor, you get no deduction because you still own the building.⁴ Narrow exceptions exist for remainder interests in a personal residence or farm, undivided portions of your entire interest, and qualified conservation contributions.

Valuing Contributed Professional Services

GAAP requires nonprofits to recognize contributed services when they either create or enhance a nonfinancial asset, or when they require specialized skills provided by someone who has those skills and the organization would otherwise have paid for the work.⁵ An attorney drafting contracts, an accountant preparing an audit, an electrician rewiring a building — all qualify. The nonprofit records the value based on what it would have paid for equivalent professional services on the open market.

General volunteer work like greeting guests, stuffing envelopes, or painting walls does not meet the standard. Those hours matter to the organization, but GAAP doesn’t treat them as a recognizable financial asset because they don’t involve specialized skills or certifications.

On the donor side, you cannot deduct the value of your time or services no matter how specialized they are. The IRS is explicit: even if a charity’s receptionist earns $10 an hour doing the same work you volunteer to do, you can’t deduct that amount.⁴ A lawyer donating 40 hours of legal work is in the same position as a teenager shelving books.

What is deductible: out-of-pocket expenses. Driving your own car for charity work qualifies at 14 cents per mile for 2026.⁶ Unreimbursed costs for supplies, travel, and required uniforms are also deductible. The volunteer attorney can’t deduct $20,000 in billable time, but can deduct the gas and parking to get to the charity.

Documentation the Value Triggers

Once you have a number, the paperwork required scales with it.

Any single contribution of $250 or more requires a contemporaneous written acknowledgment from the charity. You must have it in hand by the earlier of the date you file your return or the return’s due date, including extensions.¹ The acknowledgment includes the charity’s name, a description of the donated property (not a dollar value), and a statement about whether the charity gave anything in return. If it did, the acknowledgment needs a good-faith estimate of that value.⁷

From there, the thresholds climb:

Contributions over $500 require Form 8283 filed with the return.⁸
From $501 to $5,000, complete Section A of Form 8283 with a description of the property, how you acquired it, and your cost basis.
Over $5,000, complete Section B and obtain a qualified appraisal before filing. You generally keep the appraisal in your records rather than attaching it.⁸
Over $500,000, the full qualified appraisal must be attached to the return.⁹
Art valued at $20,000 or more requires a signed appraisal attached to the return regardless of other thresholds.⁸

For smaller tangible items below the appraisal line, comparable price listings from online marketplaces, thrift stores, and local ads justify the number. Keep those records even when you don’t file them.

How Nonprofits Report the Values

Nonprofits report noncash contributions on Form 990, Part VIII, Line 1g. If the total exceeds $25,000, the organization also completes Schedule M.¹⁰ Schedule M breaks contributions into specific categories: artwork, vehicles, securities, real estate, food inventory, clothing, medical supplies, and others.¹¹

Watch this wrinkle: donated services and the donated use of facilities are not reported on Schedule M and are not included in the revenue and expense figures on Parts VIII and IX of Form 990, even when the nonprofit records them under GAAP.¹⁰ The disconnect between GAAP financial statements and IRS reporting catches many organizations off guard.

On the GAAP side, nonprofits must present contributed nonfinancial assets as a separate line item on the statement of activities and disaggregate them by category. FASB’s ASU 2020-07 tightened disclosure requirements around gifts-in-kind, requiring disclosure of valuation techniques, donor restrictions, and whether contributed nonfinancial assets were monetized or used in programs.

AGI Limits on What Donors Can Actually Deduct

Even a well-supported valuation runs into ceilings based on adjusted gross income. The limits depend on what was donated and what type of organization received it:

60% of AGI for cash contributions to public charities and most operating foundations.⁴
30% of AGI for noncash contributions of appreciated property (like stock or real estate) to public charities, and for cash contributions to certain private foundations.
20% of AGI for noncash contributions of capital gain property to private foundations or “for the use of” any qualified organization.

When contributions exceed these ceilings, the excess carries forward for up to five years.⁴ A large in-kind gift of appreciated property isn’t lost against the 30% limit; it spreads over multiple tax years. That matters most for donors giving high-value assets like real estate or closely held stock.

Penalties for Getting the Number Wrong

Overstating value carries specific financial penalties on both sides of the transaction.

If a donor’s overvaluation leads to a substantial underpayment of tax, the IRS adds a penalty equal to 20% of the underpayment. For gross valuation misstatements, that penalty doubles to 40%.¹² These stack on top of the additional tax owed from the disallowed deduction.

Appraisers who prepare valuations resulting in substantial or gross misstatements face their own penalty. It equals the greater of 10% of the tax underpayment caused by the misstatement or $1,000, capped at 125% of the appraiser’s fee for the engagement.¹³ An appraiser can escape the penalty by showing the valuation was more likely than not correct, but that’s a standard to prove after the fact.

Conservative, well-documented values protect everyone. Aggressive appraisals that push fair market value to its upper edge may pass unchallenged most years, but when the IRS looks, the cost runs well beyond a lost deduction.

1
Internal Revenue Service. Publication 561 (12/2025), Determining the Value of Donated Property
2
IRS. Form 1098-C Contributions of Motor Vehicles, Boats, and Airplanes (Rev. April 2025)
3
Office of the Law Revision Counsel. 26 USC 170 – Charitable, Etc., Contributions and Gifts
4
Internal Revenue Service. Publication 526 (2025), Charitable Contributions
5
Financial Accounting Standards Board (FASB). Accounting for Contributions Received and Contributions Made
6
Internal Revenue Service. 2026 Standard Mileage Rates
7
Internal Revenue Service. Charitable Contributions: Written Acknowledgments
8
IRS. Instructions for Form 8283 (Rev. December 2025)
9
Internal Revenue Service. Topic No. 506, Charitable Contributions
10
Internal Revenue Service. Instructions for Form 990 Return of Organization Exempt From Income Tax (2025)
11
IRS. Schedule M (Form 990) 2025 – Noncash Contributions
12
eCFR. 26 CFR 1.6662-5 – Substantial and Gross Valuation Misstatements
13
Office of the Law Revision Counsel. 26 USC 6695A: Substantial and Gross Valuation Misstatements Attributable to Incorrect Appraisals