2025 Tax Filing Deadline Extension. Tax filing season for the previous year starts on january 1 and ends with the regular filing deadline of april 15. Deadline to make hsa and ira contributions for tax year 2024 by april 15, 2025.

Llcs can receive an extension (to september 15, 2025) by filing form 7004 (application for automatic extension of time to file certain business income tax,. This means, for example, that the may 1, 2025, deadline will now apply to: