If your business missed the deadline for electing S corporation status, you can often fix it. The IRS offers a simplified route under Rev. Proc. 2013-30. It generally works when you ask for relief less than 3 years and 75 days after the date you wanted S status to begin, you had reasonable cause for the miss, and you have reported as an S corporation all along. Outside those limits, the usual alternative is a private letter ruling, which costs more and takes longer.
This guide walks through who qualifies, what to attach, who must sign, and the traps that sink otherwise good requests. I have handled IRS matters for more than 45 years, and most late elections I see fail on execution, not on eligibility.
TL;DR
- Relief under Rev. Proc. 2013-30 generally requires filing less than 3 years and 75 days after the intended effective date, not after the date you discovered the mistake.
- The election must have failed solely because Form 2553 was late, and you must have reported consistently as an S corporation.
- Every person who was a shareholder from the first day of the intended election year through the filing date must sign.
- Do not file Form 1120-S by reflex. Choose one of the two IRS filing routes first.
- A late election does not erase penalties, audits, or collection activity. It is one piece of a broader fix.
Table of Contents
- What counts as a late S corporation election
- The simplified relief under Rev. Proc. 2013-30
- Reasonable cause is a story with dates, not a phrase
- Who must sign, and the shareholder trap
- Two ways to file
- Evidence to review before you file
- When the election is not the only problem
- What if you do not qualify?
- Our perspective: fix it once, fix it completely
- Get a second set of eyes before you file
- FAQ
- Sources
What counts as a late S corporation election
An S election is made on Form 2553. A late election is one filed after the deadline for the tax year you wanted it to start. Under the Form 2553 instructions, a late election generally takes effect for the tax year after the year beginning on the date you entered on line E, unless you qualify for relief. That default is why a missed deadline can cost you a full year of the wrong tax treatment.
In practice, owners land here in a few ways:
- A new corporation or LLC formed mid-year and no one filed Form 2553.
- A CPA or formation service said it was filed, and the IRS has no record of it.
- An LLC taxed as a partnership or sole proprietorship decided later it wanted S treatment.
- A C corporation intended to convert at the start of a year and missed the cutoff.
In each case the business may already have filed returns as if S status existed, issued K-1s, and run payroll with a reasonable salary. That history matters, as you will see below.
The simplified relief under Rev. Proc. 2013-30
As of July 20, 2026, the IRS late election relief page explains that Rev. Proc. 2013-30 gives simplified relief for late S corporation elections. The same procedure also covers late ESBT, QSST, QSub and corporate-classification elections. The text of Rev. Proc. 2013-30 is the controlling document.
For a late S election, the entity generally must show that:
- It is eligible to be an S corporation (or would be, apart from the late filing).
- It intended to be an S corporation as of the effective date.
- The election failed solely because Form 2553 was not filed on time.
- It had reasonable cause for the failure.
- It and its shareholders reported consistently with S status for the affected years.
- It requests relief less than 3 years and 75 days after the intended effective date.
How the 3 years and 75 days clock works
The window is measured from the intended effective date, not from the day you noticed the problem. If you wanted S status starting January 1, 2024, the 75-day election deadline was March 16, 2024. The simplified window then runs 3 years and 75 days from January 1, 2024. Waiting until you receive an IRS notice or a lender asks questions does not restart anything.
If you are past the window, do not assume all is lost. The IRS filing-status page says the usual alternative is a private letter ruling request with a user fee. That is a different, slower and more expensive process, so it pays to move before the window closes.
A quick timeline example
Suppose you formed an LLC in March 2024, intended S status from formation, and never filed Form 2553. You filed Forms 1120-S for 2024 and 2025 and issued K-1s. You discover the problem in October 2026. You are inside the window measured from your intended effective date, and your reporting has been consistent. That is the profile this procedure was built for. Now change one fact: you filed Form 1040 Schedule C for 2024 and Form 1120-S only for 2025. The reporting is inconsistent, and you need a careful review before anyone submits anything.
Reasonable cause is a story with dates, not a phrase
The Form 2553 instructions say a late election request must explain both the reasonable cause for missing the deadline and the corporation’s diligent corrective action after discovering the failure. You can enter this on line I or attach it.
A sentence like “the owner was unaware of the deadline” is thin. A stronger statement is a documented timeline:
- What you intended and when (formation documents, operating agreement, minutes, emails with your preparer).
- Who was supposed to file Form 2553 and what happened.
- The date and manner in which the failure was discovered.
- What you did immediately afterward to correct it.
Gather the paper trail before you write the statement. Contemporaneous documents persuade far more than recollections.
Who must sign, and the shareholder trap
This is where I see the most defective requests. Under Rev. Proc. 2013-30, the late-election Form 2553 must be signed by an authorized corporate officer and by all persons who were shareholders at any time from the first day of the intended election year through the date the completed form is filed. Shareholders also provide statements confirming they reported income consistently for the affected and subsequent years.
That last phrase catches people. A former shareholder who sold out last spring still has to sign. A spouse who held shares under community property rules may too. Before filing, build a shareholder roster for the entire period from the intended effective date to today, and confirm that you can reach every name on it.
Two ways to file
As of January 8, 2026, the IRS lists two practical paths:
| Route A: With Form 1120-S | Route B: Separate filing | |
|---|---|---|
| What you file | Form 2553 with the initial Form 1120-S and the reasonable-cause statement | Form 2553 and reasonable-cause statement alone, to the proper service center |
| Form 1120-S timing | Filed at the same time as the election request | Held until the IRS notifies you the election was accepted |
| Delinquent returns | Must be filed simultaneously and consistently | Filed after acceptance |
| Best when | You are eligible and the return package is complete | You want acceptance confirmed before filing returns |
The required markings matter. According to the Form 2553 instructions, the form must carry the top-margin notation “FILED PURSUANT TO REV. PROC. 2013-30.” If it is attached to Form 1120-S, that return must be marked “INCLUDES LATE ELECTION(S) FILED PURSUANT TO REV. PROC. 2013-30.” Skipping the notation is an avoidable reason for delay.
The 2025 Form 1120-S instructions say a corporation should not file Form 1120-S for a year before the S election takes effect. They also say that if you hear nothing within 2 months of filing the election (5 months if you requested a letter ruling), you should follow up with the IRS. Calendar that follow-up date. Also note that the same instructions raise the minimum failure-to-file penalty for returns more than 60 days late to the smaller of the tax due or $525 for returns due in 2026, so delay in sorting out the filing path is not free.
Evidence to review before you file
The IRS is asking whether you behaved as though the S election already existed. So reconcile the record first:
- Prior returns. Forms 1120-S, or Forms 1120, 1065 or Schedule C filed for the same years.
- K-1s and shareholder returns. Do the shareholders’ Forms 1040 match the K-1 amounts? If not, see our guide on a K-1 mismatch notice.
- Payroll records. Owner-employees should be paid W-2 wages. If the salary looks too low, read our memo on a reasonable salary audit.
- Self-employment tax. If you filed as a sole proprietor, you paid self-employment tax on the profit that an S corporation structure would treat differently. This self-employment tax explainer is a useful refresher on how much to set aside while the structure is being corrected.
- Entity classification. For an LLC that never filed Form 8832, the classification election may need to be addressed alongside the S election.
If any of these conflict, resolve the conflict before the request goes in, not after the IRS asks.
When the election is not the only problem
A late S election does not erase existing liabilities, penalties or collection activity. If you are already under audit, facing a levy, or behind on returns, the election request is one part of a larger plan: establish the correct filing status, file accurate returns, and separately address collection relief where it is available.
That sequencing matters. Filing the wrong entity return can create more notices, while leaving required returns unfiled compounds the compliance problem. If your corporation has unfiled returns, start with our page on unfiled delinquent corporate returns. The age of those returns also affects exposure, which is covered in our IRS statute of limitations guide.
Pro tip: Think of a late election as pressing pause on a tax-year mismatch, not deleting it. Relief fixes the status going forward and retroactively for the affected years, but any balance due from the underlying years still has to be handled on its own track.
What if you do not qualify?
Two situations commonly push a request out of the simplified route: the window has closed, or the failure was not solely the late Form 2553 (for example, the corporation had an ineligible shareholder). In those cases, the IRS points to a private letter ruling with a user fee. Fees for professional help vary with the number of years, shareholders, delinquent returns, classification issues and whether a ruling is needed, and the IRS does not publish a standard preparation price.
Also keep in mind that S status is not irrevocable once accepted. The IRS revocation guidance says a revocation statement generally needs consent from shareholders owning more than 50% of the issued and outstanding stock. A revocation effective on the first day of a year is generally due by the 15th day of the third month of that tax year. If you are unsure S status suits you at all, decide that before spending effort on relief.
Our perspective: fix it once, fix it completely
We look at late elections as a compliance-history problem, not a form problem. The Form 2553 is one page. What decides the outcome is whether the story you tell on it matches every return, K-1 and payroll report that came before.
Three things we insist on with every client:
- A full return inventory first. We reconcile what was filed, by whom and under which entity before drafting the reasonable-cause statement.
- A real shareholder roster. We confirm every signer, including anyone who left, before the package is assembled.
- One plan for the whole IRS file. If the business also has unfiled returns, a notice or collection action, we address them together rather than letting one filing undercut another.
The mistake we correct most often is one made by a preparer or formation service that assumed the election was filed. The IRS procedure was written to forgive that kind of honest miss, but only when the paperwork is built carefully.
— Joe
Get a second set of eyes before you file
If you think your S election is late, we can review your return history, shareholder list and timeline, then tell you which route fits. Our consultation with Joe is the place to start, and our tax preparation and representation services cover the returns that go with the election. If returns are overdue, see our IRS delinquent returns page.
FAQ
Can I file a late S corporation election after 3 years and 75 days?
Not under the simplified procedure, which generally requires filing less than 3 years and 75 days after the intended effective date. The usual alternative is a private letter ruling request, which carries an IRS user fee. Talk to a CPA or tax attorney before the window closes.
Do I file Form 1120-S before the IRS accepts my late election?
It depends on the route. If you file Form 2553 with your initial Form 1120-S, the delinquent returns go in together. If you file Form 2553 separately, you should wait for the IRS to notify you the election was accepted before filing Form 1120-S.
Do former shareholders have to sign?
Yes. The Form 2553 relief request must be signed by an authorized officer and everyone who was a shareholder at any time from the first day of the intended election year through the filing date. A missing signature can make an otherwise eligible request defective.
Does a late election fix my back taxes or penalties?
No. It corrects your entity’s tax status but does not erase existing balances, penalties or collection activity. Those need their own plan, such as an installment agreement or other relief where you qualify.
Sources
- IRS: Late election relief
- Rev. Proc. 2013-30
- IRS: Filing requirements for filing status change
- Instructions for Form 2553
- 2025 Instructions for Form 1120-S
- IRS: Revoking a Subchapter S election