Form 990 deadline 2026: when your nonprofit's return is due

When is Form 990 due?

The rule is the same for Form 990, 990-EZ, 990-PF and 990-N: the 15th day of the 5th month after your accounting period ends. If that day lands on a Saturday, Sunday or legal holiday, the return is due the next business day.

Two years of dates for the two most common year ends:

• Tax year ended December 31, 2025: due Friday, May 15, 2026. Extended due date Monday, November 16, 2026.
• Tax year ending June 30, 2026: due Monday, November 16, 2026. Extended due date Monday, May 17, 2027 (May 15 is a Saturday).
• Tax year ending December 31, 2026: due Monday, May 17, 2027.

Due dates by tax year end

Find the month your tax year ends. The middle column is your deadline; the right column is the deadline if you file Form 8868 on time. Move a date to the next business day when it falls on a weekend or holiday.

Your tax year ends	Form 990 is due	With a Form 8868 extension
December 31	May 15	November 15
January 31	June 15	December 15
February 28 or 29	July 15	January 15
March 31	August 15	February 15
April 30	September 15	March 15
May 31	October 15	April 15
June 30	November 15	May 15
July 31	December 15	June 15
August 31	January 15	July 15
September 30	February 15	August 15
October 31	March 15	September 15
November 30	April 15	October 15

Not sure which version of the form you file? The Form 990 finder answers that in three questions.

How the Form 8868 extension works

• It is automatic. You file the form; you do not have to explain why.
• It adds six months. One extension per return per year, no second one.
• It must be filed by the original due date. Filed a day late, it does nothing.
• It can be filed electronically, and most nonprofits do.
• It extends the time to file, not the time to pay. If you owe tax, for example on unrelated business income, pay it by the original date or interest runs.
• It does not cover Form 990-N.

The 990-N rule is different

If your gross receipts are normally $50,000 or less, you file the 990-N e-Postcard. It has the same due date as every other 990, but it cannot be extended. The IRS also charges no penalty for filing it late. So if you miss May 15, file it anyway, as soon as you can. A late 990-N still counts as filed. A missing one counts toward the three-year clock below.

What a late Form 990 costs

For Form 990, 990-EZ and 990-PF, the IRS can charge a penalty for every day the return is late unless you show reasonable cause. The amounts for returns covered by the 2025 Form 990 instructions:

• Most nonprofits: $25 a day, capped at the lesser of $13,000 or 5% of your gross receipts for the year.
• Gross receipts over $1,309,500: $130 a day, capped at $65,000 per return.
• Responsible people: after the IRS writes to you and its deadline passes, the person who fails to comply can be charged $10 a day, up to $6,500 for one return.

These figures rise with inflation each year, so check the current instructions before you quote them. Keep in mind the 5% cap: for a $40,000-a-year organization the maximum penalty is $2,000, not $13,000. It is still money you did not have to spend. If you had a real reason for filing late, attach a reasonable cause statement and ask for the penalty to be removed.

The three-year clock

This is the one that ends organizations. Fail to file for three consecutive years, on any version of the form including the 990-N, and your exemption is revoked automatically. The revocation takes effect on the due date of the third missed return. The law does not let the IRS undo a proper automatic revocation, and there is no appeal.

What revocation means in practice: donations stop being deductible, most funders stop writing checks, and you may owe income tax from the revocation date until you are reinstated.

There are four ways back, all through a new exemption application with the user fee. Within 15 months of the revocation letter, small organizations that were eligible for the 990-EZ or 990-N can get retroactive reinstatement with no explanation required. Larger filers within 15 months need a reasonable cause statement for at least one of the three years. After 15 months, you need reasonable cause for all three. Or you can accept reinstatement from the date your new application is postmarked, with a gap in between. Our post on automatic revocation walks through the whole thing.

State deadlines are separate

Your state does not read your Form 990 for you. Most states want an annual or biennial report to keep your corporation in good standing, and many want a charitable registration renewal, often with the 990 attached. Those run on their own calendars. The nonprofit compliance calendar covers the pattern, and each of our state guides lists that state's dates.

A simple habit that removes the risk

Put two dates on the calendar the day your fiscal year closes: the due date, and a date six weeks before it when someone confirms the return is started. If the return will not be ready, file Form 8868 that day. It costs nothing and takes minutes. The organizations that lose their status are almost never the ones that decided not to file. They are the ones where nobody was watching the date.

This is general information, not legal or tax advice. Penalty amounts change every year, and your own due date depends on your tax year. Check the current IRS instructions and ask a CPA before you rely on any of it.

The Ember tool for this

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Sources: IRS, Return due dates for exempt organizations: annual return; Instructions for Form 8868; Instructions for Form 990 (2025), section H, failure-to-file penalties; Form 990-N (e-Postcard); Automatic revocation of exemption; How to have your tax-exempt status reinstated. All read 2 September 2026.