A US rescue recognized under section 501(c)(3) must file a Form 990-series return or the Form 990-N e-Postcard every year. If it misses three consecutive years, the law revokes its exemption automatically, effective on the due date of the third missed filing. There is no appeal. The only way back is to apply for exemption again.1
Which return your rescue files
Every organization exempt under section 501(a) must file an annual return unless it falls into a listed exception. Almost all of those exceptions cover churches, religious orders and government bodies. The one that applies to most small rescues is not an exemption from filing. It only lets a small organization file the short e-Postcard in place of a full return.2
Which form you file depends on gross receipts and assets:
| Your organization | Form | Notes |
|---|---|---|
| Gross receipts normally $50,000 or less | 990-N (e-Postcard) | Online only. You may file a full return instead if you choose |
| Gross receipts under $200,000 and total assets under $500,000 | 990-EZ or 990 | Either is accepted |
| Gross receipts $200,000 or more, or total assets $500,000 or more | 990 | Full return required |
| Private foundation, whatever its size | 990-PF | Required regardless of income |
"Normally" has a set meaning. If your organization is a year old or less, it qualifies when it received, or was pledged, $75,000 or less in its first tax year. Between one and three years old, it qualifies when its first two years averaged $60,000 or less. At three years or older, it qualifies when the immediately preceding three tax years, counting the current one, averaged $50,000 or less.3 Gross receipts means everything that came in before costs. A busy kitten season's adoption fees count in full, even when every dollar went straight back out to the vet.
The deadline, and why the small form is the dangerous one
The e-Postcard is due by the 15th day of the fifth month after your tax year ends. For a calendar-year rescue that is May 15, moved to the next business day if it falls on a weekend or holiday. You cannot file it before the year closes.3
The IRS charges no penalty for a late 990-N. When the deadline passes it mails a reminder to the address it has on file.3 A late full Form 990 or 990-EZ costs money: the IRS's published penalty is $20 a day, capped at the lesser of $10,500 or 5% of gross receipts for the year, and higher for large organizations.4 That page still quotes the large-organization figures for returns due in 2021 and 2022, so check the current year's Form 990 instructions for the amounts that apply now. A 990-N filer gets no fine to warn it. The first serious consequence is the revocation.
Two things trip up small groups. The reminder goes to whatever address the IRS has, which may be the home of a founder who has since stepped back. And to file the e-Postcard you now need a Login.gov or ID.me account, tied to the same email address as your IRS account, and you have to name a principal officer.3 If nobody knows who holds that login, nobody files.
What the IRS does at year two and year three
The statute sets the sequence. After two consecutive years with no filing, the IRS must notify the organization that it has no record of a return or notice for those two years, and warn that revocation will follow if the next one is not filed on time. This notice applies where the second missed return was due after December 31, 2019.5 That letter is your last warning.
After three consecutive years with no filing, exempt status "shall be considered revoked on and after the date set by the Secretary for the filing of the third annual return or notice."5 The IRS then adds the organization to its Automatic Revocation of Exemption List, updated monthly, which shows the name, EIN, last known address and effective date of revocation.1
The IRS says plainly that it is barred by law from undoing a proper automatic revocation, and that there is no appeal process.1
What revocation changes for donors and for you
A revoked organization is no longer exempt from federal income tax. It may have to file a corporate income tax return on Form 1120 and pay tax. It can no longer receive tax-deductible contributions, and it is removed from the IRS's Tax Exempt Organization Search. Gifts made before your name appears on the revocation list stay deductible for the donor. Gifts made afterwards are not.1 The IRS also warns that state and local laws may affect an organization that loses its federal exemption.1 Check with your own state what depends on federal status. We have not surveyed the states, and the answer will not be the same everywhere.
This post is not legal or tax advice.
Getting reinstated, and why the 15-month window matters
Every revoked organization has to apply for reinstatement, even if it never had to file an application to be recognized in the first place.5 Revenue Procedure 2014-11 sets out four routes. The clock for the first three starts at the later of two dates: the date on your revocation letter (CP-120A) or the date your name appeared on the list.6
The streamlined route is the one a small rescue is most likely to qualify for. It is open if you were eligible for the 990-EZ or 990-N in all three missed years and have never been auto-revoked before. File Form 1023 or 1023-EZ with the user fee within 15 months, and exemption is restored back to the date of revocation. The IRS will not impose the section 6652(c) failure-to-file penalty if you also file paper 990-EZs for any of those years in which you were not 990-N eligible. Years in which you were 990-N eligible need no back filing.6
Organizations that do not qualify for the streamlined route can still be restored retroactively within the same 15 months. The application must show reasonable cause for at least one of the three missed years, and the missing returns must be filed on paper. After 15 months the requirements are the same, except you must show reasonable cause for all three years.6
The fourth route, post-mark date reinstatement, restores exemption only from the date you apply.6 Anything given to you in the gap between revocation and that date stays non-deductible for the donor, which is the real cost of letting the 15 months run out.
After reinstatement the same three-year rule applies again, and an organization revoked a second time cannot use the streamlined route.6
If you are not sure your group has filed, search your EIN in Tax Exempt Organization Search. It shows your 990-N filings and whether you appear on the revocation list. Then name one person who files each May and one who checks that they did.
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Internal Revenue Service, Automatic revocation of exemption, page last reviewed 28 June 2026. "Organizations that do not file for three consecutive years automatically lose their tax-exempt status. An automatic revocation is effective on the original filing due date of the third annual return or notice." Source for the monthly list, the Form 1120 consequence, the loss of deductibility and removal from Publication 78, deductibility of gifts made before listing, the warning about state and local law, and "The law prohibits the IRS from undoing a proper automatic revocation and does not provide for an appeal process." ↩ ↩ ↩ ↩ ↩
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Internal Revenue Service, Annual exempt organization return: who must file, page last reviewed 27 June 2026. Lists the fifteen exceptions under IRC 6033. Exception 14 is an organization, other than a private foundation, that "normally has annual gross receipts of $50,000 or less and therefore is eligible to file an annual electronic notice Form 990-N." The table thresholds come from IRS, Form 990 series: Which forms do exempt organizations file, page last reviewed 28 June 2026. ↩
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Internal Revenue Service, Annual electronic filing requirement for small exempt organizations — Form 990-N (e-Postcard), page last reviewed 9 October 2026. Source for the "normally $50,000 or less" test, the due date, "You cannot file the e-Postcard until after your tax year ends," "There is no penalty for late submissions," the reminder letter, the Login.gov or ID.me requirement and the principal-officer field. ↩ ↩ ↩ ↩
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Internal Revenue Service, Annual exempt organization return: penalties for failure to file, page last reviewed 6 July 2026. "In general, the maximum penalty for any return is the lesser of $10,500 or 5 percent of the organization's gross receipts for the year." The page's large-organization figures are stated for returns due in 2021 and 2022. Because those figures are dated, confirm the current amounts in the instructions for the year being filed. ↩
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26 U.S.C. §6033(j), text at the Legal Information Institute, Cornell Law School. Paragraph (1)(A) requires the two-year notice. Paragraph (1)(B) provides for revocation after three consecutive years and requires the published list. Paragraph (2) requires an application for reinstatement "regardless of whether such organization was originally required to make such an application." Paragraph (3) allows discretionary retroactive reinstatement on reasonable cause. The two-year notice applies where the second year's return is required to be filed after 31 December 2019. Checked as current on 24 October 2026; we found no 2026 change to the 990-N threshold or the revocation rule. ↩ ↩ ↩
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Internal Revenue Service, Automatic revocation – how to have your tax-exempt status reinstated, page last reviewed 6 July 2026, summarizing Revenue Procedure 2014-11. Source for all four procedures, the 15-month clock, the treatment of the section 6652(c) penalty, and the bar on streamlined reinstatement after a second revocation. ↩ ↩ ↩ ↩ ↩