You would first adjust the amount from your withholding by returning to the Income sections. (For example, W-2 or 1099) Then follow the instructions below:
To enter estimated tax payments paid during 2017, in TurboTax online program, go to:
1. Sign back into the program and select Take me to my return
2. At the right upper corner, in the search box, type in estimates paid and Enter
3. Select Jump to estimates paid
4. On the screen, Estimates and Other Income Taxes Paid, select your sections and enter information
