Inadvertent S Corp Termination: How To Save an Election You Lost by Accident

Nobody decides to blow up their S election. It happens when a shareholder transfers stock to the wrong kind of trust, when an LLC member sells an interest to a partnership, or when an operating agreement says something the tax law does not allow. The business keeps running. The returns keep going out as Forms 1120-S. And the election may have ended years ago.

The law has a way back. IRC 1362(f) allows the IRS to treat a terminated election as continuing if the termination was inadvertent and you fix it. This guide explains what terminates an election, what relief requires, and which problems can now be fixed without a private letter ruling.

What Terminates an S Election

IRC 1362(d) lists three ways an election ends.

Revocation. Shareholders holding more than half the shares can revoke the election under IRC 1362(d)(1). That is deliberate, and it is not what this guide is about.

Ceasing to be a small business corporation. Under IRC 1362(d)(2), the election terminates whenever the corporation stops meeting the definition in IRC 1361(b), effective on and after the date it stops qualifying. Under IRC 1361(b)(1), a small business corporation is a domestic corporation, not an ineligible corporation, that does not:

• Have more than 100 shareholders (family members can be treated as one shareholder under IRC 1361(c)(1))
• Have a shareholder who is not an individual, other than an estate, certain trusts, or certain exempt organizations
• Have a nonresident alien as a shareholder
• Have more than one class of stock

Passive investment income. Under IRC 1362(d)(3), a corporation with accumulated earnings and profits at the close of three consecutive tax years, and with passive investment income exceeding 25 percent of gross receipts in each of those years, loses its election starting with the next tax year. This only applies to corporations carrying earnings and profits, usually from C corporation years.

Common Real World Triggers

• Stock passing to a trust that does not qualify, or to a trust whose beneficiary or trustee never made a required QSST or ESBT election
• Stock transferred to a partnership, a corporation, or a multi-member LLC
• A shareholder becoming a nonresident alien
• Governing provisions that give some shares different distribution or liquidation rights

For more on the ownership and stock class rules, see our guide to second class of stock and ineligible shareholders.

What Termination Costs You

When the election terminates midyear, IRC 1362(e) splits the tax year into an S short year and a C short year. The corporation is a C corporation from the termination date forward, which means corporate level tax on its income and different treatment of distributions to shareholders.

Then there is the waiting period. Under IRC 1362(g), a corporation whose election terminated cannot make a new S election before its fifth tax year beginning after the first tax year for which the termination was effective, unless the IRS consents. So letting the termination stand is often not a short term inconvenience. It can be a five year problem.

The Relief: IRC 1362(f)

IRC 1362(f) allows the IRS to treat the corporation as continuing to be an S corporation if four conditions are met:

1. The election was terminated under IRC 1362(d)(2) or (3), or was ineffective from the start because of a failure to meet IRC 1361(b) or to obtain shareholder consents.
2. The IRS determines the circumstances resulting in the termination were inadvertent.
3. Within a reasonable period after discovery, steps were taken so the corporation is again a small business corporation, or the required consents were obtained.
4. The corporation and every person who was a shareholder during the relevant period agree to make whatever adjustments the IRS requires, consistent with S corporation treatment.

Notice what is not on the list. A voluntary revocation under IRC 1362(d)(1) is not eligible.

What "Inadvertent" Means

Treas. Reg. 1.1362-4(b) puts the burden on the corporation to show the termination was inadvertent. The regulation says it tends to show inadvertence when the terminating event was not reasonably within the corporation's control and was not part of a plan to terminate the election, or when the event happened without the corporation's knowledge despite its due diligence to protect itself against it.

An honest mistake about trust paperwork usually fits that description. A transfer everyone knew about and nobody bothered to check is a harder story. Either way, the facts have to be laid out in detail.

Adjustments and Consents

Under Treas. Reg. 1.1362-4(d), the IRS may require any appropriate adjustments. When an ineligible shareholder caused the problem, the IRS may require that shareholder to be treated as a shareholder of the S corporation for the period it held stock, and may require protective adjustments to prevent loss of revenue. Under Treas. Reg. 1.1362-4(e), the corporation and every person who was a shareholder at any time during the relevant period must sign consent statements agreeing to those adjustments.

Under Treas. Reg. 1.1362-4(f), relief can be retroactive for all affected years, so the corporation is treated as if the election never terminated. Alternatively, the IRS may grant relief only for the period after the corporation became eligible again, treating it as a C corporation in between.

How To Ask for Relief

The default route is a private letter ruling. Treas. Reg. 1.1362-4(c) says the request is made in the form of a ruling request and must lay out all relevant facts, including the election date, a detailed explanation of what caused the termination, when and how it was discovered, and the corrective steps taken. The current ruling procedures and user fees are in Rev. Proc. 2026-1, as modified and amplified by Rev. Proc. 2026-21.

But several common problems no longer need a ruling at all.

Late QSST and ESBT Elections

Rev. Proc. 2013-30 provides relief for late QSST and ESBT elections, a missed trust election that can terminate an S election when stock passes into a trust. Rev. Proc. 2026-1 continues to list Rev. Proc. 2013-30 as providing relief under IRC 1362(f) for certain corporations without a letter ruling and without a user fee. The same procedure covers late S elections themselves; see our guide to late S corp election relief.

Rev. Proc. 2022-19

Rev. Proc. 2022-19 amplified Rev. Proc. 2013-30 and addressed several issues that used to drive ruling requests:

• Disproportionate distributions (section 3.02). If the governing provisions give all shares identical distribution and liquidation rights, the IRS will not treat disproportionate distributions as violating the one class of stock rule, and taxpayers do not need to seek relief.
• Inconsistent returns (section 3.05). Filing a Form 1065 or Form 1120 instead of Form 1120-S does not by itself terminate a valid election. The corporation must file returns consistent with its status for open years.
• Non-identical governing provisions (section 3.06). If the corporation adopted governing provisions that gave shares different rights, this section provides a way to obtain relief without a ruling if its requirements are met. Those include that no disproportionate distribution was made, that Forms 1120-S were timely filed, and that a Corporate Governing Provision Statement and Shareholder Statements are submitted. If relief applies, the election is treated as continuing.
• Principal purpose questions (section 3.01). The IRS will not rule on whether certain buy-sell, redemption, and similar agreements had a principal purpose of circumventing the one class of stock rule, because that is a factual question.

Practical Steps If You Find a Problem

1. Identify the terminating event and its date. The date controls everything: which years are affected and whether you are past the point of easy fixes.
2. Fix the underlying problem now. Move stock out of the ineligible owner, make the missing trust election, or amend the governing documents. IRC 1362(f) requires corrective steps within a reasonable period after discovery. Waiting hurts your case.
3. Check the no ruling routes first. Rev. Proc. 2013-30 and Rev. Proc. 2022-19 may cover your situation.
4. Line up every shareholder. Former shareholders included. Consents and statements from everyone who held stock during the affected period are part of every route.
5. Keep reporting consistently. Keep filing Forms 1120-S and K-1s while relief is pending, and make sure the K-1s match the shareholders' returns. If the corporation has fallen behind on filings, deal with that too; see our guide to the Form 1120-S late filing penalty.

If the termination is tied to basis or distribution problems, those need their own review. See S corp distributions in excess of basis.

An S election can end in a single afternoon of careless paperwork. Getting it back takes more work, but the law gives you a way to do it. Use it before the IRS finds the problem first.