I've followed the suggested comments and entered the federal employment taxed I paid, by quarter, throughout FY-2020.
That said, I see about a $2k difference in the TBTx "Fed Tax Due" amount after entering the Domestic Employment annual salary, and the "Fed Tax Due" after completing the Estimated Tax payments to include the Federal taxes for the employment requirements.
Note: I have always used QuickBooks Payroll service to pay the employment taxes, and file the required Federal forms 940 and 941. So, why does TBTx indicate a $2K difference (increase) in the tax burden. After entering the employment salary paid, and the Federal taxes I paid throughout the year, I think my "Fed Tax Due" would be the same as before I started entering the Domestic Employment figures.
