My company overpaid my salary for the last pay period in 2020 and the first pay period in 2021. I repaid both amounts in 2021. Where do I report the repayment in TT?

My 2020 W2 has been corrected for SS and Medicare earnings/taxes, but my company says the Wages/Tax boxes (box 1 and 2) will not be amended for 2020 W2 since repayment occurred in 2021. How and where do I report this in TT?