You cannot just go on the tax form and "update" it. The software and the filing process do not work that way. You will need to amend.
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.**
