2026 Tax Due Dates
Important Due Dates
Individuals
January 15, 2026
Final estimated tax payment for 2025. This applies to self-employed individuals or those with significant income not subject to withholding.
April 15, 2026
Deadline to file 2025 individual income tax returns (Form 1040) or to request an extension. First estimated tax payment for 2026 is also due.
June 15, 2026
Second estimated tax payment for 2026.
September 15, 2026
Third estimated tax payment for 2026.
October 15, 2026
Deadline to file 2025 individual income tax returns if an extension was granted.
Businesses
January 31, 2026
Employers must provide W-2 forms to employees and file them with the Social Security Administration. Also, deadline to furnish Form 1099-NEC to non-employee compensation recipients.
March 16, 2026
Deadline for S corporations (Form 1120S) and partnerships (Form 1065) to file 2025 tax returns or request an extension.
April 15, 2026
C corporations must file 2025 tax returns (Form 1120) or request an extension.
September 15, 2026
Extended deadline for S corporations and partnerships to file 2025 tax returns.
October 15, 2026
Extended deadline for C corporations to file 2025 tax returns.
Estimated Tax Payments for Corporations
April 15, 2026
First installment of 2026 estimated tax.
June 15, 2026
Second installment of 2026 estimated tax.
September 15, 2026
Third installment of 2026 estimated tax.
December 15, 2026
Fourth installment of 2026 estimated tax.
Non-Profit Organizations
May 15, 2026
Deadline to file 2025 calendar-year information returns (Forms 990, 990-EZ, or 990-PF) or request an extension.
Trusts and Estates
April 15, 2026
Deadline to file 2025 income tax returns (Form 1041) or request an extension.
Additional Notes
- ◆If a due date falls on a weekend or federal holiday, the deadline is typically extended to the next business day.
- ◆State tax deadlines may differ; consult your state's tax authority for specific dates.
- ◆For the most accurate and personalized information, consider consulting a tax professional or referring to the IRS's official publications.