What message are you receiving when you try to e-file the state tax return?
Have you already e-filed the federal tax return and has the IRS accepted the tax return? The state tax return cannot be e-filed if the federal tax return has not been e-filed or if the e-filed federal return has not yet been accepted by the IRS.
See this TurboTax support FAQ for e-fling a state return after the federal return has been e-filed and accepted by the IRS - https://ttlc.intuit.com/community/e-file/help/how-do-i-e-file-my-state-after-i-already-filed-my-fede...
If you are not e-filing the federal return then the state return can only be printed and mailed.
See this TurboTax support FAQ for printing a tax return for mailing - https://ttlc.intuit.com/community/printing/help/how-do-i-print-and-mail-my-return-in-turbotax-online...
