After you file
If you have not mailed the tax return or e-filed the tax return then you can go back to the 2018 tax return and make any corrections needed.
When you sign onto your online account and land on the Tax Home web page, scroll down and click on Add a state. 
This will take you back to the 2018 online tax return so you can make your changes.
The tax return to include all forms, schedules and worksheets is available through Print Center.
Click on Tax Tools on the left side of the online program screen. Then click on Print Center. Then click on Print, save or preview this year's return. Choose the option Include government and TurboTax worksheets
