If you missed the deadline for filing Form 2553, you can still get S corporation status backdated in most cases. The IRS’s simplified procedure under Revenue Procedure 2013-30 lets a corporation file Form 2553 late — up to three years and 75 days after the intended effective date — provided the company was eligible for S status the whole time, everyone reported income consistently with that treatment, and you can show the missed deadline had a reasonable cause. Corporations that have always filed as S corps can sometimes go back even further.
The Deadline You Missed, and Why Late Filing Still Works
Form 2553 is normally due no later than two months and 15 days after the first day of the tax year the election is meant to take effect, or at any time during the preceding tax year.1Office of the Law Revision Counsel. 26 USC 1362 – Election; Revocation; Termination For a calendar-year corporation wanting S status starting January 1, 2026, that puts the deadline at March 16, 2026. An election filed after the window normally gets bumped to the following tax year.
Section 1362(b)(5) of the Internal Revenue Code gives the IRS authority to treat a late election as timely when there was reasonable cause for the failure.1Office of the Law Revision Counsel. 26 USC 1362 – Election; Revocation; Termination Revenue Procedure 2013-30 is how you invoke that authority without paying for a private letter ruling. It’s the exclusive simplified method for late S corp election relief.2Internal Revenue Service. Late Election Relief
First Check: Was the Corporation Actually Eligible?
Before anything else, confirm the corporation qualified as a “small business corporation” under Section 1361(b) for the entire period the late election would cover.3Office of the Law Revision Counsel. 26 USC 1361 – S Corporation Defined If any of these were violated at any point, the IRS will deny relief no matter how good the reasonable cause story is:
- The entity is a domestic corporation, organized under U.S. or state law.
- It has no more than 100 shareholders. Family members can elect to be treated as a single shareholder.
- Every shareholder is an individual, an estate, or a qualifying trust or tax-exempt organization. Partnerships and other corporations cannot hold stock.
- No shareholder is a nonresident alien. Every individual shareholder is a U.S. citizen or resident.
- The corporation has only one class of stock. Differences in voting rights alone don’t create a second class; differences in distribution or liquidation rights do.
Verify this cold before assembling the package. Everything downstream assumes it.
Which Relief Path Fits Your Situation
The route through Revenue Procedure 2013-30 depends on what returns, if any, the corporation has already filed.
You’ve Been Filing as an S Corp Already
This is the cleanest path. If the corporation filed Forms 1120-S and every shareholder reported their share of income on their personal returns for every year since the intended effective date, you attach the completed Form 2553 to the current-year Form 1120-S. The current-year 1120-S must be filed within three years and 75 days of the intended effective date.4Internal Revenue Service. Revenue Procedure 2013-30
An example: for an intended effective date of January 1, 2023, the window closes March 17, 2026. Form 2553 and the reasonable cause statement have to reach the IRS by then.
You Haven’t Filed Any Returns Yet
A common situation for newly formed businesses. Attach Form 2553 to the Form 1120-S for the tax year that includes the intended effective date, as long as that 1120-S is filed within three years and 75 days of the effective date. Any delinquent 1120-S returns for later years get filed at the same time, all treating the company as an S corp.4Internal Revenue Service. Revenue Procedure 2013-30 There are no C corporation returns to unwind, which makes this easier than it looks.
More Than Three Years and 75 Days Have Passed
Section 5.04 of Revenue Procedure 2013-30 waives the time limit entirely if all of these are true:4Internal Revenue Service. Revenue Procedure 2013-30
- You aren’t also requesting a late check-the-box entity classification election.
- The only defect was the missing Form 2553. Every other S corp requirement was met.
- The corporation and all shareholders reported income as an S corporation for every year since the election should have taken effect.
- The corporation filed its Form 1120-S for the first intended S corp year at least six months before requesting relief.
- Neither the corporation nor any shareholder received an IRS notice questioning the S corporation status within six months of that first timely 1120-S.
If the IRS has already contacted you about the status, this path closes.
What Goes in the Filing Package
Miss any piece and the request can be rejected outright.
A Completed Form 2553
Signed by an authorized corporate officer and by every person who held stock at any point between the intended effective date and the date you file.4Internal Revenue Service. Revenue Procedure 2013-30 That includes former shareholders who have since sold their shares. If someone held stock for one day during the period, you still need their signature.
A Reasonable Cause Statement
A statement signed under penalties of perjury explaining why the election wasn’t filed on time and what you did once you found out.2Internal Revenue Service. Late Election Relief The IRS decides reasonable cause case by case. Commonly accepted explanations include reliance on a CPA or attorney who failed to file, not knowing an affirmative election was required, and administrative errors during formation.
Write it as a factual narrative with dates and names. “Due to an oversight, the election was not filed” invites scrutiny. Something like “On March 3, 2023, we engaged [CPA name] to handle formation filings. We provided all requested documents by March 10. We discovered on February 15, 2025, while preparing 2024 tax returns, that Form 2553 had never been submitted” gives the IRS what it’s looking for: no deliberate disregard, and quick correction. Any statement suggesting you knew the deadline and chose to ignore it is fatal.
Shareholder Consent Statements
Every shareholder during the covered period provides a written statement, signed under penalties of perjury, confirming they reported their income consistently with S corporation status on all affected returns.4Internal Revenue Service. Revenue Procedure 2013-30
Spouse Signatures in Community Property States
If any shareholder lives in a community property state, that shareholder’s spouse also signs Form 2553. The community property states are Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington, and Wisconsin. Under state law, a spouse may have an ownership interest in the shares even without being listed as a shareholder. Missing spouse signatures is one of the most common reasons packages come back rejected, and it’s fully preventable.
Eligibility Affirmation
A corporate officer’s statement confirming the entity met every S corporation eligibility requirement for the entire period — the 100-shareholder limit, one class of stock, no ineligible shareholders, domestic incorporation — and that the corporation has filed, or will file, all tax returns using Form 1120-S.
Where to Send It
Form 2553 goes by mail or fax to one of two IRS service centers based on the state where the corporation’s principal business or office sits:5Internal Revenue Service. Where to File Your Taxes for Form 2553
- Connecticut, Delaware, D.C., Georgia, Illinois, Indiana, Kentucky, Maine, Maryland, Massachusetts, Michigan, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, West Virginia, and Wisconsin file to Department of the Treasury, Internal Revenue Service, Kansas City, MO 64999. Fax: 855-887-7734.
- Alabama, Alaska, Arizona, Arkansas, California, Colorado, Florida, Hawaii, Idaho, Iowa, Kansas, Louisiana, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, South Dakota, Texas, Utah, Washington, and Wyoming file to Department of the Treasury, Internal Revenue Service, Ogden, UT 84201. Fax: 855-214-7520.
If you mail it, use certified mail with return receipt so you have proof of the submission date. Faxing produces its own confirmation. Keep copies of everything.
After You File
When the IRS accepts the late election, you’ll get a CP261 notice confirming S corporation status and the effective date.6Internal Revenue Service. Understanding Your CP261 Notice File it permanently with your corporate records. If the effective date on the CP261 isn’t the one you asked for, the IRS is telling you the form wasn’t timely for that date; follow up.
Processing runs several weeks to a few months. If nothing has come back in a reasonable time, the IRS says to call 800-829-4933 to check status.7Internal Revenue Service. Filing Requirements for Filing Status Change Respond quickly if the IRS requests additional information; delays can stall or sink the request.
If You Don’t Qualify for Automatic Relief
Automatic relief closes when the three-year-and-75-day window has passed, returns weren’t filed consistently, or a concurrent entity classification issue is in the mix. The backup is a private letter ruling from the IRS National Office, requested under IRC Section 1362(b)(5) or Section 1362(f). The user fee for a standard PLR in 2026 starts at $18,500, and combined with professional fees to prepare the request the total can easily run $25,000 to $50,000 or more. The fee is due on submission and isn’t refundable if the ruling goes against you. For most small businesses, getting the automatic relief package right the first time is the practical answer.
If the IRS Denies the Late Election
Denial means the corporation was a C corporation for every year it claimed S status. The corporation owes corporate income tax on its earnings for those years, reported on Form 1120 rather than 1120-S. Distributions to shareholders during that period may be recharacterized as dividends, taxable at the shareholder level on top of the corporate tax — the double taxation the S election exists to avoid.
Shareholders who reported pass-through income on Schedule K-1 will need to amend their personal returns. The corporation files amended or original C corp returns. Back taxes, professional fees, and potential penalties add up quickly. The denial letter typically identifies the specific deficiency, which tells you whether pursuing a PLR is worth the cost.
A Note on State S Corp Elections
Securing federal S status doesn’t guarantee your state recognizes it. New York and New Jersey are the notable examples of states with their own separate S corporation election forms. Other states may require a copy of your federal Form 2553 or CP261 notice. When you file the late federal election, check whether your state has its own filing and its own deadline so you don’t create a second problem while fixing the first.