The IRS does not send you a confirmation that your mailed tax return arrived. If you want to know that an envelope you mailed to the IRS got there you have to use a mailing service like certified mail that tracks it and tells you it got there.
The IRS is working on millions of pieces of mail that piled up during the pandemic. It is taking them a VERY long time to open and process all the mail.
Per the IRS website IRS Operations During COVID-19: Mission-critical functions continue:
IRS operational status and alternatives
Processing Delays for Paper Tax Returns: Taxpayers should file electronically through their tax preparer, tax software provider, or IRS Free File.
We’re experiencing delays in processing paper tax returns due to limited staffing. If you already filed a paper return, we will process it in the order we received it.
Do not file a second tax return or contact the IRS about the status of your return.
**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.**
