2026 Tax Calendar

Key tax deadlines at a glance.

Filter by category to see the 2026 filing and payment deadlines that matter to you.

January 15
2026
January 15, 2026
Q4 2025 estimated tax payment
Fourth-quarter federal estimated tax for individuals (tax year 2025).
Estimated Taxes
February 2
2026
February 2, 2026
W-2 and 1099-NEC deadline
Employer/payer copies due to workers and to the IRS/SSA (Jan 31 falls on a weekend).
Businesses
March 16
2026
March 16, 2026
S-Corp and Partnership returns (1120-S / 1065)
Calendar-year 2025 S-corporations and partnerships — file return or request extension.
Businesses
April 15
2026
April 15, 2026
Individual return (Form 1040) — 2025
File your 2025 federal return, pay any balance due, or request an extension.
Individuals
April 15
2026
April 15, 2026
Q1 2026 estimated tax payment
First-quarter federal estimated tax for tax year 2026.
Estimated Taxes
April 15
2026
April 15, 2026
C-Corp return (Form 1120) — 2025
Calendar-year 2025 C-corporations — file or extend.
Businesses
May 15
2026
May 15, 2026
Texas Franchise annual due date
Annual filing for Texas-formed and Texas-qualified entities. Qualifying entities below the no-tax-due threshold may not file a No Tax Due Report but still may need a Public or Ownership Information Report — verify with the Texas Comptroller.
Texas
June 15
2026
June 15, 2026
Q2 2026 estimated tax payment
Second-quarter federal estimated tax for tax year 2026.
Estimated Taxes
September 15
2026
September 15, 2026
Q3 2026 estimated tax payment
Third-quarter federal estimated tax for tax year 2026.
Estimated Taxes
September 15
2026
September 15, 2026
Extended S-Corp / Partnership returns
Extended deadline for calendar-year 2025 Forms 1120-S / 1065.
Extensions
October 15
2026
October 15, 2026
Extended individual return — 2025
Final deadline for extended Form 1040 returns for tax year 2025.
Extensions
January 15
2027
January 15, 2027
Q4 2026 estimated tax payment
Fourth-quarter federal estimated tax for tax year 2026.
Estimated Taxes

Official sources: IRS Publication 509, IRS Online Tax Calendar, Texas Comptroller — Franchise Tax.

Deadlines can shift due to weekends, holidays, disasters, IRS relief, entity year-end, or individual circumstances. Always verify with the IRS, the Texas Comptroller, and a qualified professional before relying on any date.

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