The Internal Revenue Service expects a written record for every charitable gift, and a more formal one, called a contemporaneous written acknowledgment, for any single contribution of $250 or more. The organization does not have to send it automatically. The donor carries the burden of asking.
What follows summarizes the IRS substantiation rules as stated on its current pages and applicable to 2026 returns. It describes the rules in general terms and is not tax advice for any particular return.
What record does the IRS require for a small cash donation?
For any contribution of cash, check, or other monetary gift, regardless of amount, the IRS requires a bank record or a written communication from the organization. Topic no. 506, Charitable contributions specifies that the written communication must show the name of the organization, the amount, and the date.
A bank or credit card statement line satisfies this on its own for a monetary gift. Cash dropped in a bucket with no receipt and no bank trail leaves nothing to substantiate.
What changes at $250?
At $250 and above, a bank record stops being enough. The IRS requires a contemporaneous written acknowledgment from the organization for any single contribution at or above that threshold, covering cash and property alike.
The threshold applies per contribution, not per year. Twelve separate $100 monthly gifts to the same organization total $1,200 and none of them individually crosses $250. A single $300 gift does.
What has to appear in that acknowledgment?
Six items. The IRS lists them on its page covering charitable contributions and written acknowledgments:
- the name of the organization
- the amount of any cash contribution
- a description, but not a value, of any non-cash contribution
- a statement that no goods or services were provided, if that is the case
- a description and good faith estimate of the value of any goods or services the organization did provide in return
- a statement that any goods or services consisted entirely of intangible religious benefits, if that applies
The detail people miss is the third item. The organization describes donated property. It does not assign a dollar value to it. Valuing donated property falls to the donor.
No IRS form exists for this. A letter, a postcard, or a computer-generated statement works as long as it carries the required information. One document can satisfy both the written-record requirement for monetary gifts and the acknowledgment requirement for gifts of $250 or more.
How late can the acknowledgment arrive?
“Contemporaneous” has a specific meaning. The donor must have the acknowledgment in hand by the earlier of two dates: when the original return for the contribution year is filed, or the due date for that return including extensions.
An acknowledgment that arrives after a filed return does not cure the problem retroactively. This is the most common way a genuine donation loses its substantiation, and the timing is unforgiving.
What if the donor received something in return?
Only the amount exceeding the fair market value of the benefit counts. A $250 gala ticket that includes a dinner worth $75 supports a $175 contribution, not $250.
The organization’s obligation runs alongside the donor’s. On its page covering substantiation and disclosure requirements, the IRS requires a charitable organization to provide a written disclosure statement to any donor making a quid pro quo contribution over $75, describing the benefit and giving a good faith estimate of its value. That threshold is $75 for the organization’s disclosure duty, separate from the $250 threshold for the donor’s acknowledgment.
What about donated goods rather than money?
Non-cash contributions add layers as the amount rises. Topic 506 sets out the sequence: a deduction above $500 for noncash property requires Form 8283. Above $500 but not more than $5,000 per item or group of similar items, Section A applies. Above $5,000 per item or group, the donor must obtain a qualified appraisal and complete Section B. Above $500,000, Section B applies and the qualified appraisal must be attached to the return.
Special rules apply to vehicles, inventory, and certain readily valued property.
Does any of this matter for someone who does not itemize?
It matters more than it used to. Topic 506 states that beginning with tax year 2026, taxpayers who do not itemize may deduct up to $1,000, or $2,000 filing jointly, of cash contributions to certain qualified organizations.
That provision applies to cash contributions specifically, and to qualified organizations specifically. Anyone relying on it still needs the underlying records, because the substantiation rules do not soften for non-itemizers.
Tax year 2026 also brings changes that cut the other way for people who do itemize, including a floor below which itemized charitable contributions stop producing a deduction, and a limit on the value of itemized deductions for filers in the top bracket. The figures attached to both are the kind that change between filing seasons, so the IRS pages themselves are the place to check them rather than any summary.
How does a donor confirm an organization qualifies?
The IRS maintains a Tax Exempt Organization Search tool, and Topic 506 directs donors to it for exactly this purpose. Gifts to individuals are never deductible, no matter how sympathetic the circumstances or how well documented the transfer.
A 501(c)(3) designation on a website is a claim by the organization. The search tool is the record. The two usually agree, and checking costs a minute.
Why is the paperwork stricter than people expect?
Congress built these requirements around a structural problem: the donor claims the benefit, the organization holds the evidence, and neither party has much incentive to be rigorous at the moment of giving. Putting the acknowledgment deadline at the filing date forces documentation to exist before anyone has a reason to reconstruct it.
That design lands hardest on small donors, who give in ways least likely to generate records, and on organizations without staff to run an acknowledgment system. A recurring $20 monthly gift may generate twelve bank entries and no letter at all, which is fine at that size and becomes a problem the moment a single gift crosses $250.
For donors weighing where to give, the record-keeping requirements sit alongside the harder questions about the organization itself. Fight For A Living Wage, a nonpartisan grassroots 501(c)(3) working on economic security, addresses what deductibility actually depends on on its own blog.
The mechanics are worth understanding on their own terms. They govern whether a gift a person actually made will survive a question about it, which is a different matter from whether the gift did any good.