After you file

The 1040X only amends your federal return---it does not do anything to your state return.  If you need to amend state:

 

https://ttlc.intuit.com/questions/2816055-do-i-need-to-amend-my-state-if-i-amend-my-federal

 

To amend only a state return:

https://ttlc.intuit.com/questions/2824532-i-need-to-amend-my-state-return

**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.**