@Robert Decker If you sent in 1040ES estimated payments you need to enter them yourself into your 2021 return. But you said 2019 you were short. So did you send in the payments during 2020 for your 2020 return or are you talking about estimates for 2021?
You need to enter them from your own records and bank statements. You can type estimates paid in the search box at the top of your return and click Find and it will give you a link to Jump To it.
OR
To enter Federal or State Estimated Taxes Paid, including a state estimated payment made in January for the prior year, go to
Federal on left or at top (Personal for Home & Business)
Deductions and Credits at top
Then scroll way down to Estimates and Other Taxes Paid
Estimated Taxes - click the start button
Do not enter them as Other Federal Withholding! Only enter them in one place.
For 2021 Federal Estimated payments should be on 1040 line 26.
