I recently discovered that TT form 3800 tax year 2018 did not move that carryforward amount for a federal tax credit to the proper box from 2017 when it did deduct the amount of the tax credit. It is in one box but not the one that the 1040 looks at. I kept wondering why it was not deducting it and finally dug through the forms. Do I have to file amended returns for 2018-22 to get the money back- it's $52,000