1098-C: Contributions of Motor Vehicles, Boats, and Airplanes
Reports contributions of motor vehicles, boats, or airplanes with a claimed value of more than $500 to a charitable organization.
Overview
IRS Form 1098-C is an informational return that charitable organizations must file when they receive a donated motor vehicle, boat, or airplane with a claimed value exceeding $500. The form documents the nature of the donation and — critically — what the donee organization ultimately did with the vehicle: sold it, materially improved it, or retained it for direct organizational use. Donors use the acknowledgment copy of Form 1098-C to substantiate their charitable deduction on Schedule A; without a timely, compliant acknowledgment, the deduction can be disallowed entirely by the IRS.
The reporting requirement was introduced by the American Jobs Creation Act of 2004 and is codified under IRC Section 170(f)(12). Congress enacted these rules largely in response to widespread abuse in vehicle donation programs, where donors routinely claimed fair market value deductions on vehicles that charities quickly sold at auction for a fraction of that amount. The form closes that gap: if the charity sells the vehicle without a significant intervening use or material improvement, the donor's deduction is generally limited to the gross proceeds the organization actually receives from the sale.
Form 1098-C is filed with the IRS and a simultaneous written acknowledgment (Copy B or a substantially similar statement) must be provided to the donor. The acknowledgment must be furnished within 30 days of the date of sale or, if the organization retains the vehicle for its own use or materially improves it, within 30 days of the contribution date. Because this acknowledgment directly controls the donor's deduction amount, accuracy and timeliness are not optional — they are a legal prerequisite for the deduction to stand.
Who Files This Form?
Any charitable organization described under IRC Section 170(c) — including 501(c)(3) organizations, governmental units, and certain other qualifying entities — that receives a donated motor vehicle, boat, or airplane must file Form 1098-C if the donor's claimed value of the donated property exceeds $500. The $500 threshold is based on the donor's claimed value, not the eventual sale price, so even if the vehicle sells at auction for less than $500, the form is still required if the donor claimed more.
Motor vehicles covered include cars, trucks, motorcycles, and any other motorized vehicle designed for use on public roads. Boats include all watercraft. Airplanes include all fixed-wing aircraft, helicopters, and similar aircraft. Off-road vehicles such as ATVs may fall within the definition depending on their primary purpose.
The filing obligation is triggered differently depending on what the organization does with the vehicle. If the vehicle is sold without significant intervening use or material improvement, the charity must certify the gross proceeds and file within 30 days of the sale. If the organization intends to make a material improvement — defined as major repairs that significantly increase the vehicle's value — or to use the vehicle directly and substantially in its exempt function for a period of at least some duration (generally more than an incidental use), the organization files within 30 days of the contribution and certifies the intended use. A third scenario applies if the organization intends to transfer the vehicle to a needy individual at a significantly below-market price as part of its charitable mission, in which case that certification is also required.
There is no small-organization exemption. Even a small nonprofit that receives a single car donation above the threshold must comply. Donor-advised fund sponsoring organizations are also subject to these rules when they accept vehicle donations on behalf of donor accounts.
Key Fields
Box 1: Donor's name, address, and taxpayer identification number
Identifies the donor who transferred the vehicle. The TIN is required because the IRS uses it to match the donor's Schedule A deduction against the organization's filed return. If the donor refuses to provide a TIN, the organization should still file the form and note the absence — do not leave it blank without explanation.
Box 2a: Vehicle or aircraft description (year, make, model)
The charity should record the year, make, and model precisely as shown on the title. Vague descriptions like 'sedan' without a make or model year have caused IRS correspondence. Confirm details against the title at the time of receipt, not at the time of sale.
Box 2b: Vehicle identification number (VIN) or aircraft/boat identification number
The VIN or hull identification number is a critical matching field. A transposed digit here can make the form impossible to match to the actual asset and may prompt an IRS notice to the donor. Always transcribe the VIN directly from the title or dashboard plate.
Box 3: Date of contribution
This is the date the donor transferred title and possession to the charity — not the date the charity received the keys or processed the paperwork. The contribution date starts the clock for the 30-day acknowledgment deadline and determines the donor's tax year for the deduction.
Box 4a: Date of sale
Applicable when the charity sells the vehicle without a significant intervening use or material improvement. The date of sale triggers the separate 30-day window for furnishing the donor's acknowledgment. Missing this deadline can invalidate the donor's deduction even if all other information is correct.
Box 4b: Gross proceeds from sale
The actual amount the charity received from the arm's-length sale of the vehicle, before any expenses. This figure, not the vehicle's fair market value, caps the donor's deduction when the vehicle is sold without material improvement or significant use. Common error: reporting net proceeds after towing or auction fees rather than gross proceeds.
Box 5a–5c: Donee certification of use, material improvement, or sale to needy individual
These checkboxes and associated certification language determine which deduction rule applies to the donor. Box 5a covers significant intervening use or material improvement; Box 5b certifies sale to a needy individual at below-market price; Box 5c certifies an arm's-length sale to an unrelated party. Only one box should be checked per form, and the certification language must match the actual disposition.
Box 6a: Did the organization provide goods or services in exchange for the vehicle?
If the charity provided any benefit to the donor in exchange — such as event tickets, a discount, or other consideration — the deduction must be reduced by the fair market value of those goods or services. This is a quid pro quo disclosure requirement under IRC Section 6115 and is often overlooked for vehicle donations where a token benefit (e.g., a tote bag) was given.
Box 7: Under the penalty of perjury certification
An authorized officer of the charitable organization must sign the form. This is not a formality — the perjury certification exposes the signing officer to personal liability for knowingly false statements. Most CPA firms advise that the executive director or CFO, not a program staffer, sign this form.
Filing Deadlines
30 days of sale or contribution
Penalties range from $60 to $310 per form for late filing.
Step-by-Step Instructions
- 1
Obtain the vehicle title and confirm the VIN, year, make, and model at the time of receipt — do not rely on the donor's verbal description or the donation intake sheet alone, as errors here are difficult to correct after the vehicle has been sold.
- 2
Determine the charity's intended disposition of the vehicle before completing the form: will it be sold at arm's length, materially improved and then used or sold, retained for the organization's own exempt use, or transferred to a needy individual at below-market price? The answer controls which boxes you check and when the 30-day clock begins.
- 3
If the vehicle will be sold without material improvement or significant organizational use, complete the form only after the sale closes so you can report accurate gross proceeds in Box 4b. Do not estimate or use Blue Book value in Box 4b — report the actual sale proceeds.
- 4
Complete all donor-identification fields (Boxes 1 through 2b) accurately, including the donor's TIN. Verify the TIN against any W-9 or prior correspondence; do not guess or leave it blank if you can reasonably obtain it.
- 5
Check the appropriate Box 5 certification (5a, 5b, or 5c) based on actual disposition. If Box 5a applies (significant use or material improvement), complete the description of the intended use or improvement in the space provided. Be specific — 'used in our Meals on Wheels delivery program for approximately 18 months' is better than 'organizational use.'
- 6
File Copy A with the IRS by the applicable deadline: within 30 days of sale (for sold vehicles) or within 30 days of the contribution date (for vehicles retained for use, materially improved, or transferred to needy individuals). Electronic filing is available through the IRS FIRE system and is required if the organization files 10 or more information returns in aggregate for the tax year.
- 7
Furnish Copy B to the donor within the same 30-day window. Delivery by first-class mail to the donor's last known address is acceptable; electronic delivery is permitted if the donor consents. Keep a copy of the mailing or delivery confirmation in your files.
- 8
Retain a copy of the completed form, the vehicle title, any sale documentation, and the donor's acknowledgment delivery confirmation for at least three years from the due date of the form — longer if the donor's return is under examination.
- 9
If the organization later discovers an error (e.g., the gross proceeds figure was wrong because the auction settled at a different amount), file a corrected Form 1098-C promptly and furnish a corrected acknowledgment to the donor so they can amend their return if necessary.
Common Mistakes to Avoid
Reporting net proceeds instead of gross proceeds in Box 4b
Box 4b must reflect the total amount received from the sale before deducting towing, storage, auction fees, or any other expenses. If the vehicle sold at auction for $3,200 and the auction took a $320 fee, Box 4b should show $3,200, not $2,880. The IRS and donor need the gross figure to apply the correct deduction cap.
Missing the 30-day acknowledgment deadline
Build a tickler into your intake process: the moment a vehicle sale closes or a contribution is received (for retained vehicles), a 30-day countdown starts. Late acknowledgments can invalidate the donor's deduction entirely, and the organization faces penalties ranging from $60 to $310 per form. Do not wait until year-end to batch-process vehicle donations.
Checking multiple Box 5 certifications on the same form
Only one of Boxes 5a, 5b, or 5c should be checked per form. The three options are mutually exclusive and represent distinct legal categories with different deduction consequences for the donor. Review the actual disposition facts and check only the box that accurately describes what happened.
Omitting or incorrectly entering the vehicle identification number (VIN)
The VIN is the primary matching field the IRS uses to link the charity's filing to the donor's deduction. Always copy the VIN directly from the title or from a physical inspection of the VIN plate — never from a donor's recollection or a donation form they completed themselves.
Failing to file a corrected form when the sale amount changes after the initial filing
If an auction or dealer payment is adjusted after the original Form 1098-C was filed — for example, due to a post-sale vehicle return or a settlement adjustment — file a corrected Form 1098-C and furnish a corrected acknowledgment to the donor. A mismatched gross proceeds figure can trigger an IRS notice to the donor.
Assuming Form 8283 eliminates the need for Form 1098-C
Form 8283 is filed by the donor to substantiate noncash charitable contributions generally and is separate from the organization's Form 1098-C filing obligation. The organization's written acknowledgment under IRC Section 170(f)(12) — typically Copy B of Form 1098-C — is a standalone requirement that must be met regardless of what the donor files.
Frequently Asked Questions
Form 1098-C is filed by charitable organizations to report the donation of a motor vehicle, boat, or airplane with a claimed value over $500. The form documents the vehicle's details, the date of contribution, and what the organization did with the vehicle — sold it, improved it, or used it directly. The donor uses the acknowledgment copy of this form to support a charitable deduction on Schedule A, and the amount of the deduction is often capped at the gross proceeds the charity received from a sale.
Related Forms
TaxScout.ai extracts 1098-C automatically
AI-powered extraction with 5-layer validation. No manual data entry.