Thanks for the information about the EFTPS password expiration! My December EFTPS payment made through Quickbooks was rejected because of this. I got an email notification saying my password had expired, but I then logged onto the EFTPS site and it worked without any mention of my password being expired. To your point, it looks like the password is valid and works when logging in, but is considered expired as far as third party apps go. For December, I made my payment via the EFTPS web site. I was going to leave my password alone and try again next month via Quickbooks to see if it was an anomaly, but now I know that I actually need to change it and will do that before making my January payment.