What is the full error message? If you want to change the amount shown, you can do so in the Review.
There is Cost Basis for many things; including stock sold, rental property, business vehicles, etc. We can't see your return in this forum, so don't know which Cost Basis you are referring to.
Since you tagged onto the end of a discussion on Charitable Donations, thought you were referring to that topic.
@Caridad17
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
