In order to indicate the taxes you have paid already during the year for your household employee (or others), you need to:
1. Go to "Deductions + Credits" (on the top bar)
2. Select "Estimates and Other Taxes Paid"
3. Select "Estimates"
4. Under "Estimated Tax Payments", select the first option "Federal estimated taxes for 2020 (Form 1040ES)"
And there you can enter the payments you have made during the year (each quarter).
