For 2018 state tax return: I deducted $2189 in payments to OK State over an 20 month period (May 2017-Dec 2018)for back state taxes plus interest and penalties. My last payment in Dec 2018 caught me up. The total paid over that period was $2189. It was my understanding from the tax code that I could deduct this amount and it was verified by Turbotax. Now OK State is telling me I could not deduct those payments. I need to know whether I can or not.
