Every year millions of people donate to charity and claim a deduction, and a great many of those deductions are disallowed — not because the donation was not genuine, but because the documentation did not meet the requirement.
The rules are specific, they have thresholds most donors do not know, and one of them is misunderstood almost universally.
The Rule Underneath Everything Else
You must have the required documentation before you file. Not at audit. Not later. For charitable contributions, the acknowledgment has to be in hand by the earlier of the date you file the return or its due date including extensions.
This is stricter than most deductions, where you can sometimes assemble support after the fact. Here, if it did not exist when you filed, the deduction is exposed.
Cash Donations by Amount
| Amount | What you need |
|---|---|
| Under $250 | Bank record, card statement, or a written receipt from the charity |
| $250 or more | Contemporaneous written acknowledgment from the charity — a bank record is not sufficient |
The threshold is per contribution, not cumulative. This is where most people go wrong. Donate $200 in January and $200 in June to the same charity and each gift stands on its own, under the threshold, with a bank record enough for both. Donate $300 once and you need a written acknowledgment for it.
A valid acknowledgment, per IRS guidance, must state the organisation's name, the date and amount, and whether you received any goods or services in return — and if you did, a description and good-faith estimate of their value. That last element is the one charities most often omit and donors most often overlook.
Non-Cash Donations: The Tiers
| Claimed value | Requirement |
|---|---|
| Under $250 | Receipt from the charity describing the items |
| $250 – $500 | Contemporaneous written acknowledgment |
| $501 – $5,000 | Acknowledgment plus Form 8283 filed with your return |
| Over $5,000 | Acknowledgment, Form 8283, and a qualified appraisal |
The tiers are based on what you claim, not what you paid originally.
The Thrift-Store Donation Problem
Bags of clothing and furniture dropped at a charity shop are among the most frequently questioned non-cash deductions, for three reasons: donors overvalue items, the receipt is often a slip with no itemisation, and almost nobody keeps a record of what was actually in the bag.
The standard is fair market value — what a willing buyer would pay for the item in its current condition. A coat you paid $180 for, worn for four winters, might realistically fetch $8. Major charities publish valuation guides, and IRS Publication 561 covers how to determine value.
To protect the deduction:
- Ask for an itemized receipt, not "one bag of clothing"
- Photograph the items before you hand them over
- Use a published valuation guide and record the figure you assigned to each item
- Keep your own list alongside the charity's receipt
The photographs matter more than people expect. A receipt saying "assorted household goods" establishes almost nothing about value; a photograph of what was in the box establishes a great deal.
Vehicle Donations
Cars, boats, and aircraft have their own rules. If the charity sells the vehicle, your deduction is generally limited to the gross sale proceeds rather than the vehicle's market value, and the organisation must provide Form 1098-C reporting the sale. If it keeps the vehicle for its own use, a market-value deduction may be available, but the charity must certify that intended use in writing.
If You Did Not Get a Receipt
For cash gifts under $250, your bank or card record covers you. At $250 or more, contact the charity and request the acknowledgment — most will issue one for the current year, but you must have it before you file. For non-cash gifts without a receipt, the deduction is exposed above $250 and there is limited scope to fix it after the fact.
This is a narrower position than most tax records, where reconstruction is sometimes possible. Our guide on what happens when you have no receipts covers where estimation is and is not permitted.
The Year-Round Habit
Donors who never have a documentation problem treat giving as a running record rather than an April reconstruction.
Scan the acknowledgment letter or charity receipt the day it arrives, note the amount, and for goods add the photographs and your valuation. By December you have a complete record of the year's giving, and the year-end rush becomes a matter of adding up rather than hunting.
ReceiptSync captures donation receipts and acknowledgment letters the moment you get them, with a notes field for valuation and a searchable archive at filing time. The broader rules on what to keep and for how long are in our guide to IRS receipt requirements.
The Bottom Line
Charitable deductions are legitimate and worth claiming, and they are also closely examined. The three mistakes that cost people most: relying on a bank record for a gift of $250 or more, accepting an unitemized thrift-shop slip, and valuing donated goods at what they originally cost rather than what they are worth now.
Build the record as you give. It is a great deal easier than reconstructing it.