I’m a day late to file an extension. What can I do?

[rjs]

There's nothing you can do about the extension. Just file your tax return as soon as you can. If you are getting a refund there is no penalty for filing late.

[xmasbaby0]

If you are getting a refund or do not owe, there is no penalty for missing the deadline on April 18, 2023.  If you will owe tax due, it is too late to get an extension, and you will simply be late and will be subject to late filing penalties and interest on the amount you owe.