Mailed returns take weeks to be processed----and they are not "accepted" or "rejected" in the way that e-files are. It may be a month or probably longer before the IRS opens your return and enters anything about it into the system. When they do, you will not be able to track it since the IRS site only shows information about 2020 returns. Realistically, expect it to take several months for the IRS to process your late mailed 2019 return and be pleasantly surprised if it is processed any sooner.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
