Tax Year 2026
When are 2026 taxes due?
April 15, 2027.
Federal returns for tax year 2026 are due Thursday, April 15, 2027. Extensions run to October 15 — for filing, not paying.
Key Dates for 2026 Returns
Filing season opensLate January 2027
Filing deadlineApril 15, 2027
Living abroadJune 15, 2027
Extension deadlineOctober 15, 2027
The Extension Fine Print
Form 4868 extends your time to file, not your time to pay. Tax you owe is still due April 15 — pay your best estimate with the extension to avoid interest and penalties.
2026 Estimated Tax Dates (Self-Employed)
Q1April 15, 2026
Q2June 15, 2026
Q3September 15, 2026
Q4January 15, 2027