How do I correct my state tax return before completing the filing process?

If you haven't already e-filed your state tax return and had it accepted by the state department of revenue, you can sign in to your account and use the menu to go to the State section. You can make any changes or corrections needed before you e-file your state tax return. The state return (and federal, if you haven't already filed the federal) will not be e-filed until you click the Send Tax Return button on the last screen.