If I received a refund in my tax return of $2.000, but I forgot to include a tax credit. So now I will file an Amended Tax return.
The total correct amount should have been $2.500.
What is the amount I should include in line 21 in Amended Tax Return Form 1040x? is it the total $2.500 or is it just the incremental $500?
In case it is just the $500, where should I show the $2.000 I received in the refund check from original tax return, to account for it? Thanks,