Tax Filing Deadline 2024 Maine Deadline.  — here's what you need to know about the tax deadline, including common tax relief exceptions and what to do if you need an extension. The deadline to file your federal tax return and pay any federal income taxes you owe is monday, april 15, 2024.

17, 2023, through june 17, 2024. Maine and massachusetts residents had until april 17 because of state holidays, and.