For 2020 Estimates Paid go directly to 1040 line 26 with refund applied from 2019.
You enter state estimated payments under the federal side (because they can be a federal itemized deduction)
Be careful not to enter estimates under Income Taxes Paid Paid
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 Jan 2020 for 2019 (or Jan 2021 for 2020), go to
Federal or Personal (for Home & Business version)
Deductions and Credits
Then scroll way down to Estimates and Other Taxes Paid
Estimated Taxes - click the Start or Update button
