Get your taxes done using TurboTax

You can't change the state code from the review section.   Leave the review and click on Federal on the left side menu.   Then search for 1099-INT (or whatever form has the zip code error) and edit the form from the TurboTax interview.   

If you have edited the form and the correct 2 state code is entered for the zip code you have entered, then you have another error that needs to be corrected.   

@bgott

Make sure the city and state match up to the zip code.  This error happens when the state code doesn't match what is on file with the IRS.  TurboTax follows the IRS for acceptable zip codes.  If the state code does not match the correct state, you will get an e-filing error.  

• Check that the 2 letter state abbreviation is correct here USPS Two–Letter State and Possession Abbreviations   (most common error)
• Make sure you've entered the ZIP code in either 5-digit or 9-digit format, for example, 12345 or 12345-6789.
• Look up the correct ZIP code for the street address in question.

TurboTax Customer Service