@Pinkyl321
It's not that you were supposed to repay in the same year. Repayment in a later year is very common. But under the tax reform law that was passed in 2017 many deductions were eliminated for 2018 through 2025. One of those was the deduction for repayment of income reported in an earlier year if the amount is $3,000 or less.
If you enter the repayment in the box that you saw, TurboTax will just ignore it because there is no deduction or credit for a repayment of $3,000 or less. Entering it will have no effect on your tax.
(TurboTax doesn't actually completely ignore an entry of $3,000 or less. It will transfer the entry to the state tax return if you are in a state that allows the deduction. But since you are in New Jersey there is no place for it on the state tax return, so it is effectively ignored.)
