Tax deadlines for 2026–2027

Dates assume a calendar tax year. When a U.S. due date falls on a weekend or legal holiday, it moves to the next business day — already applied below. State due dates can differ. Last reviewed October 7, 2026.

1. Thu, Oct 15, 2026Individuals

   Extended 2025 Form 1040 returns are due (if you filed Form 4868). Extended FBAR for 2025 is due. FBAR filing →

2. Thu, Oct 15, 2026Businesses

   Extended 2025 Form 1120 (C corporation) returns are due.

3. Mon, Nov 2, 2026Employers

   Form 941 for July–September 2026 (October 31 falls on a Saturday). Payroll →

4. Tue, Dec 15, 2026India

   Advance tax installment: 75% of the year's estimated tax paid by this date.

5. Fri, Jan 15, 2027Individuals

   Fourth estimated tax payment for 2026. Estimated taxes guide →

6. Mon, Feb 1, 2027Employers

   W-2s to employees and the SSA, 1099-NEC to contractors and the IRS, Form 941 for Q4 and Form 940 (January 31 falls on a Sunday). Bookkeeping →

7. Mon, Mar 15, 2027Businesses

   2026 Form 1065 (partnerships and multi-member LLCs) and Form 1120-S (S corporations), with K-1s to owners. Also the usual date for a calendar-year Form 2553 election for 2027. Business tax filing →

8. Mon, Mar 15, 2027India

   Final advance tax installment: 100% of the year's estimated tax.

9. Thu, Apr 15, 2027Individuals

   2026 Form 1040, and Form 1040-NR if you had wages subject to withholding. FBAR for 2026. First estimated tax payment for 2027. Form 4868 extends filing to October 15 — not payment. Federal tax filing →

10. Thu, Apr 15, 2027Businesses

    2026 Form 1120 for calendar-year C corporations (Form 7004 extends filing by six months). First 2027 corporate estimated payment.

11. Fri, Apr 30, 2027Employers

    Form 941 for January–March 2027.

12. Tue, Jun 15, 2027Individuals

    Second estimated tax payment for 2027. Form 1040 for U.S. citizens and residents living abroad (automatic two-month extension), and Form 1040-NR when you had no wages subject to withholding.

13. Tue, Jun 15, 2027India

    First advance tax installment: 15% of the year's estimated tax.

14. Sat, Jul 31, 2027India

    Usual ITR due date for individuals who don't need an audit, for income earned April 2026–March 2027. The government sometimes extends it. Indian tax services →

15. Mon, Aug 2, 2027Employers

    Form 941 for April–June 2027 (July 31 falls on a Saturday).

16. Wed, Sep 15, 2027Individuals

    Third estimated tax payment for 2027.

17. Wed, Sep 15, 2027Businesses

    Extended 2026 Form 1065 and Form 1120-S returns are due.

18. Wed, Sep 15, 2027India

    Advance tax installment: 45% of the year's estimated tax.

19. Fri, Oct 15, 2027Individuals

    Extended 2026 Form 1040 returns and extended FBAR for 2026 are due.

20. Fri, Oct 15, 2027Businesses

    Extended 2026 Form 1120 returns are due.