Deductions & credits

if you can itemize deductions there are special rules for a donation of a vehicle valued at more than $500

Qualified Vehicle Donations
A qualified vehicle is any motor vehicle manufactured primarily for use on public streets, roads, and highways; a boat; or an airplane. However, property held by the donor primarily for sale to customers, such as inventory of a car dealer, is not a qualified vehicle.
If you donate a qualified vehicle with a claimed value of more than $500, you cannot claim a deduction unless you attach to Form 8283 a copy of the contemporaneous written acknowledgment you received from the donee organization. The donee organization may use Copy B of Form 1098-C as the acknowledgment. An acknowledgment is considered contemporaneous if the donee organization furnishes it to you no later than 30 days after the:
• Date of the sale, if the donee organization sold the vehicle in an arm's length transaction to an unrelated party; or
• Date of the contribution, if the donee organization will not sell the vehicle before completion of a material improvement or significant intervening use, or the donee organization will give or sell the vehicle to a needy individual for a price significantly below FMV to directly further the organization's charitable purpose of relieving the poor and distressed or underprivileged who need a means of transportation.
For a donated vehicle with a claimed value of more than $500, you can deduct the smaller of the vehicle's FMV on the date of the contribution or the gross proceeds received from the sale of the vehicle, unless an exception applies as explained below. Form 1098-C (or other acknowledgment) will show the gross proceeds from the sale if no exception applies. If the FMV of the vehicle was more than your cost or other basis, you may have to reduce the FMV to figure the deductible amount, as described under Reductions to FMV, earlier.
If any of the following exceptions apply, your deduction is not limited to the gross proceeds received from the sale. Instead, you generally can deduct the vehicle's FMV on the date of the contribution if the donee organization:
• Makes a significant intervening use of the vehicle before transferring it,
• Makes a material improvement to the vehicle before transferring it, or
• Gives or sells the vehicle to a needy individual for a price significantly below FMV to directly further the organization's charitable purpose of relieving the poor and distressed or underprivileged who need a means of transportation.
Form 1098-C (or other acknowledgment) will show if any of these exceptions apply. If the FMV of the vehicle was more than your cost or other basis, you may have to reduce the FMV to figure the deductible amount, as described under Reductions to FMV, earlier.
Determining FMV.

A used car guide may be a good starting point for finding the FMV of your vehicle. These guides, published by commercial firms and trade organizations, contain vehicle sale prices for recent model years. The guides are sometimes available from public libraries or from a loan officer at a bank, credit union, or finance company. You can also find used car pricing information on the Internet.
An acceptable measure of the FMV of a donated vehicle is an amount not in excess of the price listed in a used vehicle pricing guide for a private party sale of a similar vehicle. However, the FMV may be less than that amount if the vehicle has engine trouble, body damage, high mileage, or any type of excessive wear. The FMV of a donated vehicle is the same as the price listed in a used vehicle pricing guide for a private party sale only if the guide lists a sales price for a vehicle that is the same make, model, and year, sold in the same area, in the same condition, with the same or similar options or accessories, and with the same or similar warranties as the donated vehicle.