IRS Publication 1771 sets out the substantiation and disclosure rules that govern charitable tax deductions: what records a donor has to keep, what written statements a charity has to provide, and when each piece of paper has to be in hand. The rules turn on dollar thresholds, and missing a document at the wrong threshold can wipe out an otherwise legitimate deduction. This guide walks through the requirements donation type by donation type, so you can match the paperwork to the gift.
Cash Gifts Under $250
For any single monetary contribution below $250, you need one of two things on file before you file your return: a bank record or a written note from the charity. A bank record can be a canceled check or a bank or credit card statement showing the charity’s name, the date, and the amount. A receipt or letter from the organization works equally well, provided it names the charity and states the date and dollar amount.
Payroll giving has its own paper trail. If your employer withholds contributions from your paycheck, keep the pay stub or Form W-2 showing the deduction along with a pledge card from the charity confirming that no goods or services were provided in return.
These records must exist before you file. The IRS does not accept reconstructed giving histories put together after the return goes in.
Gifts of $250 or More: The Written Acknowledgment
Once a single contribution reaches $250, a bank statement is no longer enough. You must have a contemporaneous written acknowledgment from the charity, and without it the deduction is gone. “Contemporaneous” means you have the acknowledgment by the earlier of the date you actually file the return or the filing deadline including extensions. The IRS has held firm on this even when the gift itself was clearly real.
A valid acknowledgment must contain:
- The charity’s name.
- The cash amount contributed.
- For property gifts, a description of what was donated. The charity does not assign a dollar value; valuation is the donor’s responsibility.
- A statement of whether the charity provided any goods or services in return. If nothing was provided, the acknowledgment must say so explicitly.
- If goods or services were provided, a description and good-faith estimate of their fair market value.
- If the only thing provided was an intangible religious benefit, a statement to that effect instead of a valuation.
A charity can issue one acknowledgment per gift or a single annual statement covering all contributions of $250 or more, as long as every required element is present for each gift.
Noncash Property and Form 8283
Donating property instead of cash adds documentation layers keyed to the value of the gift. When your total claimed deduction for noncash contributions exceeds $500, you file Form 8283 with your return.
Section A of the form covers property valued above $500 up to $5,000. You describe the property, state how you acquired it, and report the deduction you are claiming. No appraisal is required at this level, but you still need a receipt from the charity describing the item.
Section B covers property valued above $5,000. At that point you need a qualified appraisal from a qualified appraiser, and the charity must sign Part V of the form to acknowledge receipt.
One boundary catches donors off guard: clothing and household items must be in good used condition or better, or the deduction is denied outright. The narrow exception is a single item worth more than $500 that falls short of that standard; you can still deduct it, but you need a qualified appraisal and must complete Section B.
Qualified Appraisals for Gifts Over $5,000
When a noncash gift exceeds $5,000, the appraisal has to meet specific standards. It must follow the Uniform Standards of Professional Appraisal Practice and include the property’s description, condition, fair market value, valuation method, and the date of the contribution. The appraiser must state their qualifications, sign the report, and include a declaration acknowledging potential penalties for misstatements.
Timing is tight. The appraiser must sign and date the report no earlier than 60 days before the donation and no later than the due date of the return, including extensions, on which the deduction is first claimed. The completed appraisal has to be in hand by that filing deadline.
The appraiser’s fee cannot be tied to a percentage of the appraised value. A contingent fee disqualifies the entire appraisal, so expect a flat fee that varies by property type. Artwork, real estate, and collectibles each require specialized expertise and price accordingly.
Vehicle, Boat, and Airplane Donations
A car, boat, or airplane donation worth more than $500 falls under a separate regime in 26 U.S.C. § 170(f)(12). In most cases your deduction is capped at what the charity actually receives when it sells the vehicle, not the Kelley Blue Book value or your purchase price. The charity reports the sale price on Form 1098-C, and you must attach Copy B to your return. Without that form, no deduction.
Two exceptions allow you to deduct the vehicle’s full fair market value at the time of donation:
- The charity makes material improvements to the vehicle or puts it to significant use in its programs before transferring it.
- The charity gives the vehicle to a person in need, or sells it to that person well below fair market value, in furtherance of its charitable purpose. Auctioning the vehicle does not qualify.
The charity must furnish Form 1098-C within 30 days of the sale, or within 30 days of the donation if one of the exceptions applies. If the filing deadline is approaching and the form has not arrived, file for an automatic six-month extension on Form 4868 rather than claim the deduction without documentation.
Quid Pro Quo Payments Over $75
A quid pro quo contribution is partly a gift and partly a purchase. The gala ticket priced at $200 where the dinner is worth $60 is the classic example. When a donor’s payment tops $75, the charity must provide a written disclosure that does two things: it informs the donor that only the amount above the fair market value of what they received is deductible, and it gives a good-faith estimate of that fair market value.
Charities that skip the disclosure face a penalty of $10 per contribution, capped at $5,000 per fundraising event or mailing. The penalty falls on the organization, but the donor is the one who suffers if they unknowingly deduct the full ticket price. Well-run organizations print the disclosure directly on the invitation or ticket.
When the Disclosure Is Not Required
Some benefits do not trigger the disclosure requirement:
- Goods or services of insubstantial value under IRS guidelines. The thresholds are set by revenue procedure and adjusted for inflation.
- Purely commercial transactions with no donative element, such as buying a book at retail price from a museum gift shop.
- Intangible religious benefits that are not sold commercially outside the charitable context, such as admission to a worship service.
- Low-cost annual membership benefits of $75 or less that provide standard perks like free admission, discounted parking, or members-only events within IRS per-person cost limits.
Volunteer Expenses and Charitable Mileage
The value of your time is never deductible. Unreimbursed out-of-pocket expenses you incur while volunteering are, provided you keep receipts and the expenses relate directly to the charitable service. Think supplies for a charity event, ingredients for a soup kitchen, postage for a nonprofit mailing.
When your unreimbursed expenses for a single organization total $250 or more, you need a written acknowledgment from that charity. It has to describe the services you performed and state whether the organization reimbursed you for any costs. The same contemporaneous timing rule applies.
For driving, you can deduct 14 cents per mile for charitable use of your car. The rate is set by statute and does not fluctuate year to year the way the business mileage rate does. Alternatively you can deduct actual out-of-pocket costs for gas and oil, but not depreciation, insurance, or general repairs. Either way, keep a contemporaneous log with the date, destination, charitable purpose, and miles driven.
Delivery, Timing, and Recordkeeping
Charities can deliver acknowledgments and disclosures by mail, email, or PDF. The IRS does not mandate a format; it cares about timing and content.
The donor must hold the acknowledgment by the earlier of the date they file the return for the contribution year or the filing deadline including extensions. Quid pro quo disclosures have to be provided at the time the charity solicits or receives the payment, not later.
Keep acknowledgments, receipts, appraisals, and bank records for at least three years after filing the return that included the deduction. Hold them longer if you claimed a loss or the return has other features that could extend the IRS’s review window.
Penalties on Both Sides
Charities that fail to provide required quid pro quo disclosures owe $10 per contribution, capped at $5,000 per fundraising event or mailing. Modest for a large organization, meaningful for a small nonprofit running multiple events a year.
Donors face steeper exposure. If the IRS disallows a deduction for lack of proper substantiation, you owe back taxes on the disallowed amount plus interest. On top of that, a 20% accuracy-related penalty applies to the underpayment if the IRS finds negligence or a substantial understatement of tax. For individuals, a substantial understatement means understating tax by the greater of 10% of what you actually owed or $5,000.
Appraisers have their own exposure under 26 U.S.C. § 6695A for substantial or gross valuation misstatements. The penalty equals the greater of 10% of the resulting underpayment or $1,000, capped at 125% of the fee the appraiser received. The design gives appraisers a direct financial reason to value donated property honestly.