I live, work, and pay taxes in New Jersey. I used TurboTax to file my 2020 returns. In my NJ return, I paid $17 in interest on underpayment of estimated tax. The $17 was calculated by TurboTax and form NJ-2210 was filed. Yet, today, I received a bill from the NJ Division of Taxation for Installment Interest. They reported the $17 as "Overpayment" and charged me the balance ($27.84) between the $17 overpayment and their Installment Interest calculation of $44.84. Wasn't the $17 underpayment interest supposed to account for all taxes I was supposed to pay during the year? Was the $17 an incorrect calculation or reported incorrectly so that it was not properly considered by the NJ Division of Taxation? If not, why am I being charged more interest?
