If I have already e-filed, but discover a mistake on State Taxes, how do I correct it?

[kcrytzer]

I am a PA Resident on Active Military status and stationed outside of PA. I paid $58 to the State through E-Filing, but now think that my income was exempt from state tax.

[EricG1]

Unless the return gets rejected, you won't be able to correct it. You will have to wait until it processes through, then file an Amendment. Amendments can be filed up to three years after the initial filing. To file an Amendment, you must first wait until your return is accepted, approved and processed. Then you'll be able to file an Amendment.

https://ttlc.intuit.com/replies/5567856