THE PROBLEM IS THAT THE QUICKBOOKS 2021 UPGRADE MADE IT SO THAT YOUR PASSWORD FOR EFTPS CAN ONLY BE 12 CHARACTERS. IF YOUR EFTPS PASSWORD IS LONGER THAN THAT, YOU'RE SCREWED. I JUST GOT HIT WITH A HUGE PENALTY FROM THE IRS. I FINALLY FOUND ADVICE THAT YOU HAVE TO CHANGE YOUR EFTPS PASSWORD TO 12 CHARACTERS FOR QUICKBOOKS TO CORRECTLY SUBMIT YOUR PASSWORD. 

SHAME ON YOU, QUICKBOOKS!!!!!