Only thing we can say is look at the withholding that was made in 2020 compared to prior years. The only explanation is a smaller percentage of income withheld.
Need to make sure you answer certain questions regarding credits and deductions in a manner that would upgrade you. Next time just go straight to the W-2 sectio...
Despite paying taxes a few days ago, a tax prep system usually automatically sets the payment for the last final day which is the 18th. Are you having problems ...