2026 Tax Season Dates
Key 2026 Tax Season Dates (for the 2025 Tax Year)
Tax Day: Wednesday, April 15, 2026—the deadline to file your individual federal return and pay any taxes due.
Extension Deadline: By filing Form 4868 by April 15, you can extend filing until October 15, 2026, but note: taxes owed must still be paid by April 15 to avoid penalties.
For estimated tax payments (for self-employed, investors, etc.) in 2026:
Q1 due April 15, 2026
Q2 due June 15, 2026
Q3 due September 15, 2026
Q4 due January 15, 2027
Important: If April 15 falls on a weekend or holiday, the deadline may shift to the next business day—but for 2026, it's a Wednesday, so no change is expected.