There is no penalty for filing a tax return after the due date if you are receiving a tax refund. Plus the postmark on the envelope shows the IRS that is was filed in a timely manner.
The IRS has not been processing paper tax returns for several months. They have just started recently.
Go to this IRS website for information - https://www.irs.gov/newsroom/irs-operations-during-covid-19-mission-critical-functions-continue
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.
