Here are some major shortcomings of the EFTPS system.
- EFTPS does not show your funding accounts on the web. You have to remember which bank account you enrolled in the system.
- EFTPS does nothing to support multiple funding accounts in a meaningful way. If you enroll a 2nd time with a different funding account, you will get a new PIN mailed for that account, BUT the 1st account/PIN still still remains active. This is not necessarily bad, but again the web site does not show which account you are using (it is selected by the PIN you use!). Hence the taxpayer can easily shoot himself in the foot and pick funding from a different account than intended, potentially causing the transaction to fail (insufficient funds) or to cause other balance problems.
I have to say, the system is too primitive. The sensible thing to do is to have an SSN/PIN-based system where one can then as a 2nd step set up and use multiple funding accounts under one account umbrella.
The system of having multiple separate accounts/PINS is illogical and error prone.
I called the service number 800-316-6541 to inquire about why my payment was pulled from a different account than I intended, and the explanation was that the PIN selects the account. I urged the service person to feed back that this is not a good system, but I did not get a good feeling that anyone really cared.