When Is Tax Season 2025 Start. The irs is now accepting tax returns. The internal revenue service (irs) has announced that the 2025 tax filing season begins this monday monday, january 27, 2025.

Tax season begins in late january 2025, when the irs starts accepting returns, and ends on april 15, 2025. January 27th, 2025 is the official start of the tax season.