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Most in-kind acknowledgments are wrong. The donor and the charity each say something different to the IRS.

The donor side (IRS Pub. 526 / Pub. 561) and the charity side (FASB ASC 958-605 + Pub. 1771) follow different rules — and both are routinely violated. Services aren't deductible. Used clothing has limits. Property gets FMV on the deduction side but cost basis on the charity-revenue side if it'll be sold. Written acknowledgments require specific language. This tool walks each item through both lenses and produces the substantiation text Pub. 1771 actually requires.

Donor View
Pub. 526 + 561
Charity View
ASC 958-605
Ack Letter
Pub. 1771 language
Form 8283
When required
YOUR IN-KIND GIFT
1
Gift type
2
FMV evidence
3
Donor-side rules
4
Charity-side rules
5
Substantiation
STAGE 1 OF 5

Gift type

The rules split sharply by category. This single question determines whether the donor gets a deduction at all, and how much.

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THE FOUNDATIONAL RULE
Different rules, different sides of the transaction
Donor side (IRS Pub. 526, Pub. 561, §170): governs what the donor can deduct on Form 1040 Schedule A. Different rules for cash, services (generally not deductible), used goods, appreciated property, ordinary-income property, and vehicles.

Charity side (FASB ASC 958-605, GAAP): governs how the charity records the gift on its financial statements and Form 990. Services are recorded if specialized (donated legal, accounting, professional). Used goods at FMV. Inventory at lower of cost or FMV. Auction items have specific Pub. 1771 disclosure on the bidder's side.

The two answers don't have to match. The donor's deduction and the charity's recorded revenue may be the same number, different numbers, or one zero and one positive. This tool calculates both.
STAGE 2 OF 5

FMV evidence

Pub. 561 governs how FMV is determined for non-cash gifts. The evidence requirements scale with the dollar amount. Above $5,000, qualified appraisals become mandatory for most categories.

What the donor originally paid. Matters for ordinary-income property and short-term capital gain — deduction limited to lesser of FMV or basis.
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For property: if the charity sells rather than uses it for its exempt purpose, donor deduction may be limited to basis (not FMV) on tangible personal property.
A qualified appraisal must be from an independent appraiser. Related-party appraisals are disqualified.
PUB. 561 EVIDENCE THRESHOLDS
FMV documentation requirements by gift size
Under $250: Donor must keep a receipt with name, address, date, description, and FMV.
$250 to $500: Written acknowledgment from charity is required (Pub. 1771).
$500 to $5,000: Form 8283 Section A required on donor's return; written acknowledgment.
Over $5,000 (most categories): Qualified appraisal required + Form 8283 Section B signed by appraiser AND charity. Charity files Form 8282 if sold within 3 years.
Over $500,000: Full qualified appraisal attached to donor's return.
Publicly traded stock is exempt from the qualified-appraisal requirement at all levels.
STAGE 3 OF 5

Donor-side deductibility

What this donor can actually claim on their Form 1040 Schedule A. The rules for the donor are stricter than most acknowledgment letters imply.

Used to compute AGI-percentage limit. Cash to public charity: 60% AGI. Non-cash to public charity: 30% AGI. Capital-gain property special rules.
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If donor received meal, merchandise, services in return — that value reduces the deduction. Pub. 1771 requires charity to disclose.
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%
STAGE 4 OF 5

Charity-side recognition

How the gift hits the charity's books under GAAP (ASC 958-605) and Form 990. The charity-side number is often different from the donor-side number.

For services to be recorded on charity books, they must (a) require specialized skills (e.g. legal, accounting, medical, design, professional), (b) be provided by someone with those skills, and (c) typically be paid-for if not donated.
Affects valuation method: gifts used directly = FMV. Gifts to be sold = lower of cost or net realizable value (for inventory) or FMV (for capital assets).
Effective FY 2022+, GAAP requires disaggregated disclosure of in-kind by type, monetization vs. utilization, donor restrictions, valuation technique. Most small orgs aren't compliant.
ASC 958-605 (FASB 2020)
The disaggregated-disclosure rule everyone is behind on
Effective FY 2022 (calendar) / FY 2022-2023 (fiscal), GAAP requires nonprofits to disclose contributed nonfinancial assets (in-kind gifts) by category, including: type of in-kind, monetization vs utilization, donor-imposed restrictions, valuation technique used, and inputs to the valuation. Lump-sum "$185K of in-kind" on the audited statements is no longer compliant. Most small and mid-size orgs are still using the old format. Worth a conversation with your audit firm before next year's audit.
STAGE 5 OF 5

Substantiation & recommendations

The two-sided answer, the acknowledgment letter language Pub. 1771 actually requires, and the documentation checklist.

HERE — TRY THESE. THEY MAY HELP.

In-kind substantiation is one piece of the donor-side / charity-side stack.

We don't sell your data. We don't run a webinar funnel. Three honest resources, free, that we'd hand you if you walked into our office and asked where to start.

Family Office Guide Estate Planning Decoded All free tools
Practitioner reference. Outputs are estimates based on user inputs and reflect general rules under IRS Pub. 526, Pub. 561, Pub. 1771, IRC §170, and FASB ASC 958-605 as of the asserted application date. Tax law and accounting standards change. Specific facts (related-party transactions, partial-interest gifts, bargain sales, conservation easements, vehicle donations under §170(f)(12)) follow specialized rules not captured by this tool. Cross-check every non-trivial in-kind gift with your CPA and your auditor. This is not financial, tax, or legal advice.
WANT THE METHODOLOGY BEHIND THIS TOOL?
This calculator pairs with the Family Office Guide & Estate Planning Decoded.
The tool answers the substantiation question for one gift. The guides cover the surrounding workflow — donor-side strategy on cash vs. appreciated property vs. business interests, multi-year AGI-limit planning, charitable-vehicle selection (DAF, CRT, CLAT, private foundation), and the gift-acceptance committee discipline that catches the unfortunate gift (the conservation easement valued at 200× basis, the racehorse with a stable bill) before it becomes an audit issue.
Read the Family Office Guide → Browse all guides
PROFESSIONAL DISCLAIMER · PLEASE READ

Educational and informational purposes only. This calculator and any output it produces are intended solely for general educational and decision-support purposes. They do not constitute investment, tax, legal, accounting, appraisal, lending, insurance, or any other professional advice, and they do not create a fiduciary, attorney-client, accountant-client, or advisor-client relationship of any kind.

Estimates based on your inputs. Tax law (IRC §170, related regulations, IRS Pub. 526/561/1771) and accounting standards (FASB ASC 958-605, ASU 2020-07) are summarized in this tool but are not exhaustive. Specialized gift types (bargain sales, partial interests, conservation easements, qualified appraisals over $500K, vehicle/aircraft, art with related-use issues, donor-advised funds, private foundations, supporting organizations) follow specific rules not fully captured here. The draft acknowledgment letter is a starting template — not legal advice or a substitute for review by your tax counsel.

Consult your own qualified professionals. Before acting on anything calculated here, consult your own attorney, CPA, or qualified appraiser as applicable.

Co-branded versions: The disclaimer applies regardless of co-branding.

Educational references and tools — not legal, tax, accounting, or investment advice, and not a recommendation to buy or sell any security. Consult a qualified professional about your specific situation. © 2026 The Baratelli Institute.