You enter the estimated tax payments in TurboTax as follows:
To enter estimated taxes paid (Federal, State, Local)
- Click on Federal Taxes
- Click on Deductions and Credits
- Click on I'll choose what I work on (if shown)
- Scroll down to Estimates and Other Taxes Paid
- On Estimates, click on the start or update button
- It will recognize the last one made in 2017.