Tax Year 2021 Form 1040 MeF Due Dates Transmission Information Date Begin Transmitting live IRS e-file returns January 24, 2022 Last date for transmitting timely filed returns April 18, 2022 Last date for transmitting timely filed Forms 4868 April 18, 2022 Last date for retransmitting rejected timely filed returns April 23, 2022 Last date for retransmitting rejected timely filed Forms 4868 April 23, 2022 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, 2022 Retransmitting rejected timely filed Forms 4868 or 2350 to meet overseas exception June 20, 2022 Last date for transmitting returns on extension from Form 4868 October 17, 2022 Last date for retransmitting rejected late or returns on extension from Form 4868 October 22, 2022
