You add them under the Federal side because they can be a federal itemized deduction.
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
THEN after you finish filling out the estimates under Federal you need to click on the State Tab at the top and start the state return over for it to update.
You have to pick the right state from the drop down box and enter the right payment dates.
