Get your taxes done using TurboTax

Well there are two places I can think of where you might have indicated TN..

 

....but, ti might be best to just go back to the table of 1099-INT forms, and delete that 1099-INT entirely (hit the trashcan icon next to the "Edit" ) and enter it anew, manually from scratch. AND...do not put anything in boxes 15-to-17 of that form if no state taxes were withheld...leave those blank.

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____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*