IRS rules:

来源: 于 2009-05-11 20:08:43 [旧帖] [给我悄悄话] 本文已被阅读：次

if your car is valued at more than $500, the deduction is limited to the charity's actual selling price. The donor must attach a statement of sale to the tax return in order to receive the deduction. (The charity is obligated to provide the statement within 30 days.) You are not entitled to know the deduction amount before donating your car.