I found how to file 1040X by using the "search topics" button and searching for the word "amend."
I also looked online to learn about making a payment arrangement, and it said that using the online OPA system (online payment agreement) I would save money over filing that specific form they normally use for payment plans. But they won't know I owe tax (so does the OPA work?) until I file the 1040X and I don't want to send in the 1040 X with no payment. I guess I'll just try to make the OPA work before they receive the 1040X. Any advice welcome.
Mike
