If you filed an extension, and your e-filed return is rejected after or right before the October 15 deadline, make the necessary corrections and resubmit your return as soon as possible. As long as the IRS has received your original return before October 15th, your return will be considered filed on time.

There is no additional charge to resubmit an e-filed return. If you are not able to complete the electronic filing process by 10:00 AM (CST) on October 19th, you will need to file a paper return, and you should include an explanation and a copy of the IRS rejection with your paper return.