Reference

Reinstatement: four paths, one clock

An automatic revocation cannot be appealed and the IRS cannot undo it. The only route back is a new application for recognition, filed under one of four procedures in Rev. Proc. 2014-11. Which one applies is decided by three facts: what the organization was eligible to file during the missed years, whether it has been revoked before, and how long ago the revocation posted.

The clock runs from the later of the CP-120A letter date or the posting date on the Auto-Revocation List. Fifteen months is the line between a form and an argument.

Path	What it takes	What it buys
Streamlined retroactiveEligible to file 990-N or 990-EZ in all three missed years, and never automatically revoked before.	Application with the fee inside 15 months. No separate reasonable-cause statement.	Restored to the revocation date.
Retroactive, within 15 monthsOrganizations that had to file a full 990 or 990-PF, or were revoked before.	Application, reasonable cause for at least one missed year, and the missing returns.	Restored to the revocation date if granted.
Retroactive, after 15 monthsAny organization past the window.	Reasonable cause for each of the three missed years, with evidence. A higher bar.	Restored to the revocation date if granted.
ProspectiveAny organization, including one that cannot show reasonable cause.	Application with the fee.	Exempt from the application postmark. The gap stays revoked.

The 15-month window is the whole decision

Inside it, a small organization that was eligible for the 990-N or 990-EZ in all three missed years, and has never been automatically revoked, can use the streamlined route. The IRS treats the application as having established reasonable cause, so there is no separate statement to write. That is the difference between a filing and a project.

Outside it, the organization has to demonstrate reasonable cause for each missed year: why the return was not filed, how the failure was discovered, what changed, and what prevents a repeat. Generic explanations do not survive. Neither does "our accountant handled it" without a document that says so.

What it costs

Form 1023-EZ: $275 user fee. Available where gross receipts are normally $50,000 or less and assets are $250,000 or less.
Form 1023: $600 user fee.
Forms 1024 and 1024-A carry their own fees for non-501(c)(3) organizations.
The missing returns have to be prepared and filed. That is the real cost, not the user fee.

Fees per Rev. Proc. 2026-5. Confirm on IRS.gov before filing; user fees change.

Three details that decide the outcome

Who signs. An officer, director, or trustee signs the application. A representative under a power of attorney cannot sign it for the organization.
Donations in the gap. If reinstatement is retroactive, contributions made during the gap become deductible after the fact. If it is prospective, they do not, and donors who already claimed them have a problem.
State status does not follow automatically. Most states tie state exemptions to federal 501(c)(3) status. Sales tax, property tax, and charitable registration may each need a separate restoration.

What we do, and do not do

Enrollment Watch is not a law firm or a CPA firm. We do not prepare the application, sign it, or give tax advice. What we can do is the part that is mechanical and easy to get wrong: identify which organizations in a list are revoked, whether a reinstatement date exists, when the 15-month window closes, and which path the filing history points to. The professional you already work with decides the rest.

Questions

How long does the organization have to keep the retroactive option?

Fifteen months, measured from the later of the CP-120A letter date or the date the name was posted on the Auto-Revocation List. Inside that window, a small organization eligible for the streamlined route gets retroactive reinstatement without a separate reasonable-cause statement. Outside it, the standard rises.

What does retroactive reinstatement actually change?

It restores the exemption to the revocation date instead of the application date. That makes contributions during the gap deductible after the fact and removes the income tax exposure for the gap years. Prospective reinstatement leaves the gap exactly as it was.

Do the missed returns still have to be filed?

Yes. Reinstatement is an application for recognition, not a substitute for the missing returns. Under the retroactive routes, the missed 990 and 990-EZ years generally have to be filed, and the late-filing penalties for those years are commonly waived when reinstatement is granted.

Can a private foundation use the same process?

Yes, Rev. Proc. 2014-11 applies, but a private foundation files Form 1023, not 1023-EZ, and must also file the missing 990-PF returns. The 1023-EZ is not available to private foundations.