How to make a EFTPS payment for ENPI tax due on 1120S?

[Core - DS]

I am trying to make a payment for a balance due on a 1120S for ENPI on the EFTPS by phone.  The EFTPS system is telling me that form is not supported on that system.  My Lacerte client tax letter states that the payment must be electronically deposited through EFTPS.  Does anyone have any information/experience doing this?

[George4Tacks]

Just use 1120S

[Core - DS]

I had already tried that, and prompted with that was not a valid form.  I ended up leaving my number and they called me back and I was told to use 1120 without the S.