FIRST .... do NOT wait until the last minute to file. The efile system backs up and glitches every year so if you owe taxes it is important that you file timely. If you are getting a refund tomorrows deadline is immaterial.
Next, if your efile is rejected you have 5 days (10/22/22) to fix it and resubmit or mail it in with a copy of the rejection notice. NOTE ... if needed you can force a rejection by simply putting in an incorrect birth YEAR for yourself. This will give you an extra 5 days to file.
