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2026 Due Dates

The following are important deadlines for your 2026 taxes

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Individual Estimated Tax Schedule

  • April 15, 2026 – Q1
  • June 15, 2026 – Q2
  • September 15, 2026 – Q3
  • January 15, 2027 – Q4

Business Return Summary

  • Partnerships (1065): March 16, 2026 → Sept 15 (extended)
  • S-Corporations (1120-S): March 16, 2026 → Sept 15 (extended)
  • C-Corporations (1120): April 15, 2026 → Oct 15 (extended)
  • Estates & Trusts (1041): April 15, 2026 → Sept 30 (extended)

Extension Forms

  • Form 4868 (Individuals): File by April 15 → Extends to October 15
  • Form 7004 (Businesses): File by original due date → Extension varies by entity

Quarterly Snapshot

Q1 2026 (January – March)

January 31, 2026 (Saturday)

  • Forms W-2 & W-3 due to the SSA
  • 1099-NEC due to IRS and recipients
  • Most 1099-MISC due to IRS
 

January 15, 2026 (Thursday)

  • 4th quarter 2025 federal estimated tax payment due
 

March 16, 2026 (Monday)

  • 2025 Partnership returns (Form 1065) due
  • 2025 S-Corporation returns (Form 1120-S) due
  • Form 7004 due to extend partnerships and S-corps to September 15, 2026
  • Form 2553 (S-Corp election) due for eligible calendar-year late elections

Q2 2026 (April – June)

April 15, 2026 (Wednesday)

  • Individual income tax returns (Form 1040) due
  • C-Corporation returns (Form 1120) due
  • Trust & estate returns (Form 1041) due
  • 1st quarter 2026 estimated tax payment due
  • Extensions (Form 4868 / Form 7004) due
 

May 15, 2026 (Friday)

  • Nonprofit returns (Form 990 series) due
 

June 15, 2026 (Monday)

  • 2nd quarter 2026 estimated tax payment due

Q3 2026 (July – September)

July 31, 2026 (Friday)

  • Employee benefit plan returns (Form 5500) due (without extension)
 

September 15, 2026 (Tuesday)

  • Extended partnership returns (Form 1065) due
  • Extended S-Corporation returns (Form 1120-S) due
  • 3rd quarter 2026 estimated tax payment due
 

September 30, 2026 (Wednesday)

  • Extended trust & estate returns (Form 1041) due

Q4 2026 (October – December)

October 15, 2026 (Thursday)

  • Extended individual income tax returns (Form 1040) due
  • Extended C-Corporation returns (Form 1120) due
  • Extended Form 5500 due only if Form 5558 was filed

November 16, 2026 (Monday)

  • Extended nonprofit returns (Form 990 series) due

December 15, 2026 (Tuesday)

  • 4th quarter 2026 Virginia Pass-Through Entity (PTE) estimated tax payment due

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