If you used TurboTax online (TTO), see how to Finish prior year return at https://ttlc.intuit.com/community/prior-year-return/help/how-do-i-finish-a-prior-year-return-that-i-...
If you have download/CD (desktop) TurboTax, open it, click on State taxes then your state. Complete the return, then print and mail it. You can no longer e-file it.
