No, as long as you haven't mailed in your state return and you also e-file your federal return, you can change it back to e-file.
- Login to your TurboTax account.
- In the Welcome Home box, click Visit My Tax Timeline at the bottom.
- In the SOME THINGS YOU CAN DO section, click Add a state.
- Click on the State Taxes tab.
- Click Continue to start or complete your state taxes.
- Click Done with State.
- Continue through the flow to review and file your state taxes making sure you select e-file.
Please see the following TurboTax FAQ for additional information.
https://ttlc.intuit.com/replies/5269973
[edited 03/23/17]
