2024 2024 Deadline Meaning. — the deadline for filing a federal tax return was 11:59 p.m. Note that if you are using a fiscal year that isn’t the calendar year, your tax filing deadline is different and depends on your business entity and when your fiscal year ends.
Taxpayers who miss this deadline can still file a delayed return by. If you request an extension, your deadline to file is october 15, 2024.