George4Tacks
Level 15
‎10-09-2020 01:00 AM
I think you can file until the filing season is closed. Once the 2020 return is added to MeF, then the 2017 twitches away.
https://www.irs.gov/e-file-providers/benefits-of-1040-modernized-e-file

Answers are easy. Questions are hard!