Thanks, I do need more help because my payment doesn't match any of the choices under Estimates and Other Taxes Paid.
The payment is an unusual one. I made it last April when I thought I was paying the tax due on my 2020 return. Unfortunately, I had a senior moment and mistakenly applied the payment to the 2021 tax year, not 2020. I didn't know how to fix that, so I made a separate payment for 2020 and let the first payment sit. Now I'd like to report that first payment on my 2021 return. The best place seems to be Line 13z on Schedule 3, but TurboTax won't let me do that.
