Per the IRS: See last two items. The IRS will not accept a new tax return after Oct 15 and re-transmitted rejected returns by Oct 20.
Tax Year 2020 Form 1040 MeF Due Dates
| Transmission Information |
Date |
| Begin Transmitting live IRS e-file returns |
February 12, 2021 |
| Last date for transmitting timely filed returns |
May 17, 2021 |
| Last date for transmitting timely filed Forms 4868 |
May 17, 2021 |
| Last date for retransmitting rejected timely filed returns |
May 22, 2021 |
| Last date for retransmitting rejected timely filed Forms 4868 |
May 22, 2021 |
| Last date IRS will accept test transmissions |
No cut-off date |
| Last date to submit new IRS e-file Applications |
No cut-off date |
| Transmitting timely filed Forms 4868 or 2350 to meet overseas exception |
June 15, 2021 |
| Retransmitting rejected timely filed Forms 4868 or 2350 to meet overseas exception |
June 20, 2021 |
| Last date for transmitting returns on extension from Form 4868 |
October 15, 2021 |
| Last date for retransmitting rejected late or returns on extension from Form 4868 |
October 20, 2021 |
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
