Find a worthy charity. If the charities you
normally support aren’t equipped to accept such donations, do some
homework until you find a reputable charity that is. You can research
charities’ track records online at this Better Business Bureau site and through Charity Navigator.
Check the math. If you still feel compelled to use an intermediary organization – possibly because you’re busy – at least ask the organization how much of the donations car or boat’s value will go to charity. If the organization simply gives charities flat fees — say, $100 for a used vehicle regardless of its value, or $2,000 a month — your donation may not be eligible for a tax deduction.