strongsilenceAnswer
Level 10
November 3, 2021
2018 - yes. I'm about to file one soon.
2019 - yes.
2020 - yes.
I don't think 2017 is allowed. I think a diagnostic will appear if it is not allowed.
E-filing will close soon and I'm on hold with the IRS to find out the exact date. I didn't see an IRS Alert so if has that information I would appreciate it.
