No your dad does not have to pay it back. If you cannot be claimed as a dependent for 2021 then you can get the $1400 on your own 2021 tax return. YOU did not receive the $1400---your father got that. You can receive it thanks to a big loophole left by Congress when they wrote the law.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
