Form 7004 Deadline 2027: Due Dates for Every Return

The countdown runs to the end of the due date in your time zone. A paper Form 7004 is on time if it's postmarked that day; an e-filed one goes by the date and time in your time zone.

2027 Form 7004 deadlines

None of these dates fall on a weekend or a District of Columbia legal holiday in 2027, so none of them move.

Filing as an individual or sole proprietor? Your extension is Form 4868, not Form 7004. For 2026 returns it's due April 15, 2027 and moves your Form 1040 to October 15, 2027. Which tax extension form you need.

Due date calculator

Pick your return and the last day of your tax year. We show when Form 7004 is due and when the extended return is due.

The rule for any tax year

Form 7004 is due on the return's original due date. Count from the end of your tax year:

Example: a partnership with a tax year ending June 30, 2026 had a due date of September 15, 2026 and an extended due date of March 15, 2027. A trust with the same year end was due October 15, 2026, extended to March 31, 2027.

See every fiscal year-end for the next 12 months.

Other returns: Form 7004 is due by that return's original due date. Find it in the return's instructions.

Weekends and holidays

If a due date falls on a Saturday, Sunday or legal holiday, it moves to the next day that isn't one. "Legal holiday" means a legal holiday in the District of Columbia, and that includes DC Emancipation Day, April 16.

• March 15, 2026 was a Sunday, so calendar-year partnership and S corporation returns were due Monday, March 16, 2026.
• In 2022, April 15 was Emancipation Day observed, so corporate returns were due Monday, April 18, 2022.
• In 2028, April 15 is a Saturday and Emancipation Day is observed Monday, April 17, so the due date is Tuesday, April 18, 2028.

June 30 C corporations

A C corporation with a tax year ending June 30 that began before January 1, 2026 files Form 1120 by the 15th day of the 3rd month and gets a 7-month extension. Tax year July 1, 2025 to June 30, 2026: due September 15, 2026, extended to April 15, 2027. A short tax year ending any time in June is treated as ending June 30. For tax years beginning in 2026, the Form 7004 extension is 6 months; check the 2026 Form 1120 instructions for the due date.

Foreign corporations and line 4

A foreign corporation with no office or place of business in the United States files by the 15th day of the 6th month after year end (Part II, line 2).

Partnerships and corporations covered by Regulations section 1.6081-5 already have until the 15th day of the 6th month, without filing anything. Form 7004 with line 4 checked adds 3 months for partnerships and S corporations, or 4 months for C corporations. That extra time is to file, not to pay.

Past deadlines: 2026 filing season

For calendar-year 2025 returns, these dates have passed. Form 7004 can't be filed after the original due date.

What if you miss the deadline?

You can't file Form 7004 after the return's original due date. File the return as soon as you can and pay what you owe to limit penalties and interest. How penalties work.

Disaster relief can move your dates

When there's a federally declared disaster, the IRS can postpone filing and payment deadlines for the covered area. Check IRS tax relief in disaster situations for current notices.