In addition, the donations would only count if you are able to itemize deductions on Form 1040, Schedule A. If the addition of your donations give you enough total deductions that you would be able to itemize, you could prepare an amended return Form 1040X. As part of the amending process, if you are using Free Edition, you'd need to upgrade to Deluxe to itemize deductions, which would trigger a 39.99 fee for Federal and possibly 36.99 for State as well.
But if you have enough total deductions including the donations, and other Schedule A-type deductions, you can amend the return if it's beneficial to you.
