Nonprofit Donor Acknowledgment Letters: What IRC 170 Requires and What Gets Donations Disallowed

For any single gift of $250 or more, the donor’s deduction lives or dies on your letter. IRC 170(f)(8) allows no deduction unless the donor holds a contemporaneous written acknowledgment from you stating the amount (or a description of non-cash property), whether you provided any goods or services in return, and a good-faith estimate of their value. The donor needs it before filing. A cancelled check doesn’t substitute, and the Tax Court has denied deductions where the letter said thank you and skipped the goods-or-services sentence. Fix the template once and the problem goes away.

What must a donor acknowledgment letter include?

Three things, all in the same document. IRC 170(f)(8)(B) requires “the amount of cash and a description (but not value) of any property other than cash contributed,” a statement of “whether the donee organization provided any goods or services in consideration, in whole or in part,” and “a description and good faith estimate of the value of any goods or services” so provided. Where the only benefit is an intangible religious benefit, the letter says that instead of estimating a value.

• Element 1, the amount. For cash, the dollar figure and the date (“your gift of $5,000 on March 15, 2026”). For property, describe it and leave the value out. Valuing the property is the donor’s job, and a value on your letterhead only creates a number the IRS can argue with.
• Element 2, the goods-or-services statement. This is the one that gets skipped, because the answer is usually “none” and silence feels like the same thing. It isn’t. The statute asks for a statement either way, and Treas. Reg. 1.170A-13(f)(2) spells it out as “a statement of whether or not the donee organization provides any goods or services.” One sentence: “No goods or services were provided in exchange for this contribution.”
• Element 3, the value. Where the donor got a dinner, tickets, a gift basket or membership perks, describe them and give a good-faith fair market value. The donor deducts the gift minus that value.
• Religious organizations. Admission to services, counseling and similar benefits are “intangible religious benefits” under the statute, defined as benefits “generally … not sold in a commercial transaction outside the donative context.” The letter states that the only benefit was an intangible religious benefit, and no value is needed.

When does the donor need the letter, and is $250 per gift or per year?

Before they file, and per gift. IRC 170(f)(8)(C) calls the acknowledgment contemporaneous only if the donor has it “on or before the earlier of” the filing date for that year or the return’s due date including extensions. The threshold is measured gift by gift: under Treas. Reg. 1.170A-13(f)(1), “separate contributions of less than $250 are not subject to the requirements of section 170(f)(8), regardless of whether the sum” of a year’s gifts “equals $250 or more.”

• Two $200 checks in a year need no acknowledgment under (f)(8), though the donor still needs a bank record or your receipt for each (see the cash rules below). One $300 check does.
• One annual statement can cover every gift of $250 or more, as long as each one is listed. The regulation lets a donor “substantiate the contributions with one or more contemporaneous written acknowledgments.” A lump total with no line items leaves the donor unable to match the statement to any single gift.
• A letter that arrives after the donor filed is late even when it’s perfect. That was the second half of Durden v. Commissioner, T.C. Memo. 2012-140: the first letter lacked the goods-or-services statement, and the corrected letter came after the return went in, so neither counted.
• Send annual statements in the first two weeks of January. Donors who file in early February are the ones a late-January mailing fails.

What are the quid pro quo disclosure rules for payments over $75?

A separate rule with a separate penalty. Under IRC 6115, when an organization “receives a quid pro quo contribution in excess of $75,” it must give the donor a written statement, with the solicitation or the receipt, that the deductible amount is limited to the excess of the payment “over the value of the goods or services provided,” plus “a good faith estimate of the value of such goods or services.” A quid pro quo contribution is a payment “made partly as a contribution and partly in consideration for goods or services.”

• The penalty is on the organization. IRC 6714: “$10 for each contribution in respect of which the organization fails to make the required disclosure,” capped so that the total “with respect to a particular fundraising event or mailing shall not exceed $5,000.” There’s a reasonable-cause exception.
• The $75 test looks at the whole payment. A $100 ticket to a dinner worth $40 is a quid pro quo contribution of $100 and needs the statement, even though only $60 of it is a gift.
• Token items don’t count. Publication 1771 describes the exception: goods or services are insubstantial if the payment is made in a fundraising campaign, the organization tells the donor the deductible amount, and either the benefits are worth no more than the lesser of 2% of the payment or an indexed dollar cap, or the payment meets an indexed minimum and the only items carry the organization’s name or logo and cost no more than the low-cost article limit. For 2026 those figures are $13.90, $69.50 and $139 per Rev. Proc. 2025-32; for 2025, $13.60, $68 and $136 per Rev. Proc. 2024-40.
• Memberships of $75 or less that carry recurring privileges (free admission, gift-shop discounts, parking, member-only events at low per-person cost) are also treated as insubstantial under Publication 1771’s membership benefits exception.
• Value what the donor received at what the public would pay, whatever it cost you. A donated ballroom and a board member’s restaurant catering for free still produce a dinner with a market value, and that’s the number in the statement.

How do non-cash, vehicle and small cash gifts work?

The rules stack up with the claimed value. Property gifts over $500 need a description with the donor’s return, over $5,000 a qualified appraisal, and over $500,000 the appraisal attached, under IRC 170(f)(11). Vehicles claimed above $500 run on their own rule in 170(f)(12), which caps the deduction at your sale proceeds unless you use or improve the vehicle. Every cash gift needs a bank record or your written receipt under 170(f)(17).

Gift	What the donor needs	What the organization provides	Authority
Cash, any amount	”a bank record or a written communication from the donee showing the name of the donee organization, the date of the contribution, and the amount”	A receipt, essential for currency in a collection plate that leaves no bank record	170(f)(17)
Any single gift of $250 or more	The contemporaneous written acknowledgment	The three-element letter	170(f)(8)
Payment over $75 that buys something	Nothing extra; the deduction is the excess over value	The written disclosure statement with a value estimate	6115, 6714
Property, deduction over $500	”a description of such property and such other information as the Secretary may require” with the return (Form 8283)	The acknowledgment, describing the property without a value	170(f)(11)(B)
Property, deduction over $5,000 (not publicly traded securities)	“a qualified appraisal of such property” and the required appraisal information with the return	Signs the donee acknowledgment on the donor’s Form 8283; files a return (Form 8282) if it disposes of the property within 3 years	170(f)(11)(C), 6050L(a)
Property, deduction over $500,000	”attaches to the return for the taxable year a qualified appraisal of such property”	Same as above	170(f)(11)(D)
Vehicle, boat or plane claimed over $500	The acknowledgment attached to the return; deduction limited to gross proceeds if the vehicle is sold without significant intervening use or material improvement	The acknowledgment (Form 1098-C) within 30 days of the sale, or of the gift where the organization certifies intended use or improvement	170(f)(12)

• Publicly traded securities are exempt from the appraisal rules by 170(f)(11)(A)(ii), because the market sets the value. Cash and inventory-type property are exempt on the same line.
• Your signature on the donor’s appraisal form confirms receipt of the described property. It says nothing about the appraised value, and staff should say so when a donor treats it as an endorsement.
• The vehicle acknowledgment has to carry the donor’s name and taxpayer identification number, the vehicle identification number, and, where the vehicle was sold, “a certification that the vehicle was sold in an arm’s length transaction between unrelated parties,” “the gross proceeds from the sale,” and “a statement that the deductible amount may not exceed the amount of such gross proceeds.” Most donated vehicles go straight to auction for less than the donor imagined, and the 30-day clock is the step organizations miss.
• IRC 6050L applies where the claimed value of the property, plus similar items from the same donor, “exceeds $5,000.” If you sell or dispose of it “within 3 years after its receipt,” the return goes to the IRS with a copy to the donor, which is how an inflated appraisal gets compared to a real sale price.

What happens when the acknowledgment is wrong or missing?

The donor loses the deduction, and the organization faces no penalty for it. IRC 170(f)(8)(A) is written as a bar (“No deduction shall be allowed … unless”), so a missing element or a late letter defeats the deduction on a gift that was entirely real. In Durden, the IRS Chief Counsel’s summary reads: “Petitioners’ contemporaneous acknowledgment did not contain the goods or services statement,” and the deduction was denied. The only penalty on the organization in this area is the quid pro quo penalty under 6714.

• Cancelled checks, bank statements and your Form 990 don’t substitute for the letter once a gift reaches $250. The regulation says the same thing the statute does.
• If a donor calls in April having already filed, a corrected letter now can’t cure the year that’s closed; Durden’s second letter failed for exactly that reason. The fix is the template and the January mailing.
• A wrong value on a property acknowledgment is a dispute between the donor and the IRS; your stated value doesn’t bind anyone. The exposure you do carry is the 6050L return if you dispose of the property within three years.
• Reputationally, the asymmetry doesn’t help you. A donor who loses a deduction because of your letter tells other donors.

Do the 2026 charitable deduction changes affect what you tell donors?

They change the donor’s arithmetic, and your letter should stay out of it. From 2026, IRC 170(b)(1)(I) allows itemized charitable contributions “only to the extent that the aggregate of such contributions exceeds 0.5 percent of the taxpayer’s contribution base,” corporate gifts get a 1% floor under 170(b)(2)(A), and non-itemizers get a cash-gift deduction “not in excess of 1,000 ($2,000 in the case of a joint return)” under 170(p).

• Your acknowledgment states facts you know: the amount, the date, what was given back. It doesn’t tell the donor what they can deduct, because you don’t know their AGI, their filing status or whether they itemize. Leave the “your gift is tax-deductible” line as “to the extent allowed by law” or drop it.
• The non-itemizer deduction covers cash to public charities only, and it excludes donor advised funds and supporting organizations, so the donor of a used car or of shares can’t use it. That’s a question for the donor’s preparer.
• Fundraising copy that promises a deduction of a specific size is where the new floors bite. “Deductible as allowed by law” is still true; “fully deductible” no longer is for a lot of donors.

What should I do next?

Pull the acknowledgment template and check the three elements. If it thanks the donor and never mentions goods or services, fix it today. If the January statement shows a total rather than each gift of $250 or more, rebuild it. If any event in the last year sold tickets or auction items above $75, confirm the disclosure went out with the correct market value. If you accept vehicles, time the Form 1098-C from the sale date. And if you signed for property over $5,000, set a reminder for the three-year Form 8282 window.

• Nonprofit Form 990 filing guide, the return where contributions and donor information get reported
• Fiscal sponsorship and tax-deductible donations, who issues the acknowledgment when a project runs under a sponsor
• Nonprofit UBIT, when a fundraising activity turns into unrelated business income
• Grant management and restricted funds, the reporting side of gifts with strings attached
• Church bookkeeping and the housing allowance, the same 170 rules with the intangible religious benefit statement
• Governance and conflict of interest, the board’s gift acceptance policy
• Starting a 501(c)(3), what has to be in place before the first acknowledgment goes out
• Accuracy-related penalties and reasonable cause, for a donor whose deduction is challenged

This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.