Before I sign and file can I redo my state taxes for some reason I owe state I've never owned state taxes before

[Mike9241]

the only good reason not to e-file the state is because of the Turbotax fee.  you can change the state but if you already filed a version that was accepted you must do an amended state return. 

[SteamTrain]

If you haven't filed yet

Go back thru your income areas in the Federal section, and make sure all your State wages and State withholding shown on W-2 (Boxes 15,16,17)  OR, the State withholding boxes on Other tax forms (commonly 1099-R, but could be other)  is properly entered.

Again, if you Have Not actually filed yet:

Yes, you can certainly navigate back to, and go thru all the State questions again to see if there are any special state deductions you missed, but most state $$ amounts (wages, other income, withholding, normal itemized deductions) are entered in the Federal section.