Can Too Much Passive Income End Your S-Corp? (w/Examples) + FAQs

This article reflects federal rules and California rules as of June 2026 and covers tax year 2025 (the 2026 filing season). Tax law changes — confirm current figures before you file.

Quick Answer

Yes — but only if your S-corp carries old C-corp earnings. For tax year 2025, an S corporation with accumulated C-corp earnings and profits that earns more than 25% of its gross receipts as passive income for three years in a row loses its S status on the first day of year four under IRC Section 1362(d)(3).

Why This Matters Right Now

If your S-corp once lived as a C corporation — or absorbed one in a merger — you may be sitting on a hidden trap. Earn too much rent, interest, dividends, royalties, or annuity income, and two separate penalties can hit you: a yearly corporate-level tax under IRC Section 1375, and outright loss of your S election after three straight years over the line. Losing S status drops you back into C-corp double taxation, and you cannot re-elect for five years without IRS permission.

The good news is that most S-corps are immune to this rule. The penalty only bites if you hold accumulated earnings and profits (E&P) from C-corp years. The IRS reports that more than 5.8 million S corporations filed returns in a recent year, yet only a small slice carry old C-corp E&P — so your first job is finding out whether you are even in the danger zone. This article shows you how to check, how to do the math, and how to escape before the clock runs out.

🔍 How to tell in five minutes whether the passive-income rule can even touch your S-corp.
🧮 A full, copy-the-math worked example of the excess net passive income (ENPI) tax for 2025.
⏳ The exact three-year termination clock and how to stop it before year four.
💸 The escape hatches: distributing old E&P, the Section 1375(d) tax waiver, and Section 1362(f) relief.
🐻 How California layers its own 8.84% passive-income tax on top of the federal rule.

What “Too Much Passive Income” Actually Means

The phrase sounds vague, but the law is precise. Two distinct mechanisms share the same 25% threshold, and people constantly confuse them. One is a tax you pay every year you cross the line. The other kills your S election only after three consecutive years over the line.

Both mechanisms have the same on-off switch: accumulated C-corp earnings and profits (E&P) at the close of the year. The Treasury regulation at 26 CFR 1.1375-1 says it plainly — if the S corporation has no Subchapter C E&P at year-end, no tax applies even if it has heavy passive income. A corporation that has been an S-corp every year of its life, with no C-corp history and no C-corp merger, generally has no E&P and faces neither penalty.

What counts as passive investment income

Passive investment income (PII) is defined in IRC Section 1362(d)(3)(C) as gross receipts from rents, royalties, dividends, interest, and annuities. The consequence of mislabeling income here is steep: a single category pushed over 25% can start the termination clock. For example, an S-corp that sells its factory and parks the cash in bonds suddenly earns mostly interest, and that interest is PII. The common misconception is that “passive” here means the same as the passive-activity rules of IRC Section 469 — it does not; these are entirely separate regimes. What you should do is map every dollar of revenue to a category before year-end so nothing surprises you.

What does NOT count as passive

Several big exceptions save many businesses. Rents are not PII if the corporation renders significant services or incurs substantial costs — an active landlord with staffed, full-service property is usually fine, while a net-lease landlord usually is not. Interest and gains earned in the ordinary course of lending, financing, or dealing in property are excluded, and gains from selling stock or securities count toward gross receipts but are not treated as PII for years after May 25, 2007. The consequence of knowing these exceptions is real money: classifying a hotel partnership’s income as active (not rent) can drop you under the 25% line entirely. The fix is to document the services you provide, because the significant-services test turns on facts and circumstances.

The accumulated E&P switch

Accumulated E&P is the engine behind both penalties. It usually comes from years the company operated as a C corporation, or from a C corporation it acquired in a tax-free reorganization. If you distribute all of that E&P out to shareholders as a taxable dividend, the switch flips off and both penalties disappear. The misconception is that any S-corp with retained profits has E&P — false; S-corp earnings build the accumulated adjustments account (AAA), not C-corp E&P. Your action step is to confirm your E&P balance, because if it is zero, you can stop reading and stop worrying.

Which Situation Applies to You?

The right answer depends entirely on your corporation’s history. Use this branch to find your section.

Born-S corporation, never a C-corp, no C-corp merger → You have no C-corp E&P. Neither the Section 1375 tax nor the Section 1362(d)(3) termination can apply, no matter how much rent or interest you earn. You are done.
Former C-corp, or absorbed a C-corp, AND passive income is under 25% of gross receipts → You are safe this year, but watch the ratio if your active business shrinks.
Former C-corp with E&P, passive income over 25% this year (year 1 or 2) → You owe the ENPI tax this year and the termination clock is ticking. Read the math and escape-hatch sections now.
Former C-corp with E&P, over 25% for the third straight year → Your S election terminates on the first day of next year unless you act before year-end. This is the crisis section — see “How the Three-Year Clock Works.”

The Section 1375 Tax: A Yearly Bite

The first penalty is an annual corporate-level tax under IRC Section 1375. It applies when, at the close of the year, the S-corp both has accumulated C-corp E&P and earns more than 25% of its gross receipts as passive investment income. The tax equals the excess net passive income (ENPI) multiplied by the highest corporate rate in Section 11(b), which is a flat 21% for 2025.

The consequence is double taxation on that slice: the corporation pays 21%, and the same income still passes through to your personal return (reduced by the tax under Section 1366(f)(3)). A key limit protects you — ENPI can never exceed the corporation’s taxable income for the year, so a break-even or loss year produces no tax. The misconception is that the tax hits all your passive income; it only hits the excess portion above the 25% line, scaled by the net-passive-income formula. What you should do is run the formula every year you carry E&P, because the tax is self-assessed on Form 1120-S.

The ENPI formula

The formula from the regulation works in three moves. First, find passive income above 25% of gross receipts. Second, divide that by total passive income to get a fraction. Third, multiply net passive income (passive income minus directly connected expenses) by that fraction, capped at taxable income. Then apply 21%.

[ ENPI = NPI \times \frac{PII – 0.25 \times GR}{PII} ]

A Fully Worked Example (2025)

Meet Riverside Tool Co., a calendar-year S-corp that converted from a C corporation and still holds $90,000 of accumulated C-corp E&P. In 2025 it slowed its operations and leaned on investments.

Total gross receipts (GR): $400,000
Passive investment income (PII): interest and net-lease rent of $160,000
Expenses directly connected to that PII: $20,000
Net passive income (NPI): $160,000 − $20,000 = $140,000
Taxable income (C-corp basis): $150,000

Step 1 — 25% of gross receipts: 0.25 × $400,000 = $100,000. Since PII of $160,000 exceeds $100,000, Riverside is over the line.

Step 2 — passive income above the line: $160,000 − $100,000 = $60,000.

Step 3 — the fraction: $60,000 ÷ $160,000 = 0.375.

Step 4 — ENPI: $140,000 × 0.375 = $52,500. This is below taxable income of $150,000, so no cap applies.

Step 5 — federal tax: $52,500 × 21% = $11,025.

Riverside writes a $11,025 check at the entity level, and the passive income still flows to the shareholders’ 1040s (reduced by the $11,025 under Section 1366(f)(3)). That is the double hit the rule is designed to create.

How the Three-Year Clock Works

The second, harsher penalty is termination of the S election under IRC Section 1362(d)(3). If an S-corp has accumulated C-corp E&P at the close of each of three consecutive tax years and passive investment income over 25% of gross receipts in each of those three years, the election ends. Termination is effective on the first day of the fourth year, not retroactively.

The consequence is severe and lasting: the company becomes a C corporation, profits face entity-level tax plus a second tax on dividends, and under Section 1362(g) you generally cannot re-elect S status for five years without IRS consent. The misconception is that one bad year ends everything — it does not; you get three years, and breaking the streak even once resets the count. Your action step is to track the streak yearly and break it deliberately before the third year closes, which is fully within your control.

Riverside’s streak resets

Imagine Riverside crosses 25% in 2023 and 2024. Facing year three in 2025, the owner distributes the full $90,000 of accumulated E&P as a dividend before December 31. At year-end 2025, E&P is zero — so 2025 is not a violation year, the three-year streak breaks, and the S election survives. The same move also eliminates the Section 1375 tax for 2025, because the E&P switch is off.

Three Common Scenarios

These are the situations that trip up real S-corps carrying old C-corp E&P.

Scenario 1 — The cashed-out operating company

What Triggers It	What Happens
Former C-corp sells its operating assets and invests the proceeds in bonds, earning mostly interest	Interest is PII; if it tops 25% of gross receipts for three straight years with E&P present, S status terminates

Scenario 2 — The net-lease landlord

What Triggers It	What Happens
S-corp owns a building under a triple-net lease, providing no significant services	Rent counts as PII; over 25% with E&P means yearly Section 1375 tax and a ticking three-year clock

Scenario 3 — The good-faith E&P surprise

What Triggers It	What Happens
Owner believes there is no C-corp E&P, but an IRS audit later finds some	The Section 1375 tax can be waived under Section 1375(d) if the E&P is distributed within a reasonable time

Named Examples

Maria runs Coastal Holdings, an S-corp that absorbed her late father’s C corporation. The acquired E&P is $40,000. In 2025 Coastal earns $300,000 in gross receipts, of which $120,000 is dividend income — 40%, well over the 25% line. Maria distributes the $40,000 E&P as a taxable dividend in December, zeroes out the switch, and avoids both the tax and the clock.

David owns Lakeside Storage, an S-corp that was always an S-corp. It earns 70% of its revenue as storage-unit rent. Because Lakeside never had a C-corp life, it has no accumulated E&P, so neither penalty applies — David owes nothing extra no matter how “passive” the rent looks.

Priya leads Summit Net Lease, a former C corporation with $25,000 of E&P. Summit crossed 25% in 2023, 2024, and is heading there in 2025. Priya’s CPA spots the third-year risk in November 2025 and pushes through a consent dividend, breaking the streak and saving the election with weeks to spare.

The Escape Hatches

You are rarely stuck. Three tools, used in time, defuse the problem.

Distribute the accumulated E&P

The cleanest fix is to distribute all C-corp E&P as a taxable dividend by the last day of the tax year. With zero E&P at year-end, both the Section 1375 tax and the termination clock switch off, per 26 CFR 1.1375-1. The cost is that shareholders pay tax on the dividend now, but that is usually far cheaper than losing the S election. The deadline is hard — December 31 for calendar-year filers.

The Section 1375(d) tax waiver

If you crossed the line because you reasonably believed you had no E&P, the IRS can waive the Section 1375 tax under Section 1375(d). You must show you determined in good faith that there was no E&P, then distributed it within a reasonable time after discovering it. You request this in writing with all relevant facts; this waiver fixes the tax, not a termination.

The Section 1362(f) inadvertent-termination relief

If the election already terminated, Section 1362(f) lets the IRS treat the termination as if it never happened — if it was inadvertent and you fix the problem within a reasonable time. This requires a private letter ruling, which involves an IRS user fee (often several thousand dollars) and can take months. It works, but it is the expensive last resort, so act before year three closes instead.

California’s Extra Layer

California does not give S-corps a free pass. Under R&TC Section 23811, California generally conforms to the federal Section 1375 tax, but charges it at the state’s top corporate rate of 8.84% — and only on passive investment income from California sources. If you have no federal ENPI, you owe no California ENPI tax either.

The consequence is a possible double dip: federal 21% plus California 8.84% on the California-sourced slice. California also lets the S-corp deduct the state ENPI amount when figuring its franchise-tax income, and it requires any consent dividend to be paid within 90 days of determining E&P exists. The misconception is that California ignores entity-level S-corp items — it does not; California already imposes its own 1.5% S-corp franchise tax separately. Your action step is to track California-source passive income on your state filing, because the sourcing changes the number.

Feature	Federal	California
Tax rate on ENPI	21% (top corporate rate, 2025)	8.84% top corporate rate, per R&TC 23811
Income measured	All gross receipts and PII	Only California-source PII and receipts
Does it terminate S status?	Yes, after three years (Section 1362(d)(3))	Follows federal termination
Can credits reduce it?	No	No

Mistakes to Avoid

Assuming you have no E&P without checking. If old C-corp E&P exists and you miss it, you face an unexpected 21% tax and a silent termination clock.
Counting net-lease rent as active. With no significant services, rent is PII; misjudging this can push you over 25% and start the clock.
Waiting until year three to react. If the third violation year closes, your S election is gone the next day and a five-year lockout begins.
Distributing E&P after year-end. The E&P must be gone by the last day of the tax year; a January distribution does not save the current year.
Forgetting AAA is not E&P. Treating S-corp retained earnings as C-corp E&P can cause needless panic — or needless distributions.
Ignoring partnership look-through. Your share of a partnership’s passive income keeps its character and can quietly push you over 25%.
Skipping the Section 1375(d) waiver request. Paying the tax when a good-faith E&P mistake qualifies for waiver wastes real money.
Overlooking California sourcing. Reporting ENPI on all income instead of California-source income overstates the state tax.

Do’s and Don’ts

Do’s

Do confirm your E&P balance every year, because it is the single switch that turns both penalties on or off.
Do map revenue to PII categories before December, so you can act while there is still time to fix the ratio.
Do distribute E&P by year-end if you are near the line, because it defuses both the tax and the termination clock.
Do document significant services on rental property, since that can move rent out of the PII bucket entirely.
Do consult a CPA when you carry C-corp E&P, because the math and deadlines are unforgiving.

Don’ts

Don’t treat one over-25% year as fatal, because you have three years and a reset is easy.
Don’t ignore the 21% plus 8.84% stack in California, since the combined bite is larger than people expect.
Don’t rely on a January cleanup, because the year-end E&P test is strict.
Don’t assume gains on stock sales are PII, since post-2007 they count only toward gross receipts.
Don’t skip the private-letter-ruling route after a termination, because Section 1362(f) relief can undo an inadvertent loss.

Pros and Cons of Distributing E&P to Escape

Pros

Stops the Section 1375 tax this year, because zero year-end E&P switches it off.
Breaks the three-year termination streak, since a no-E&P year is not a violation year.
Simplifies future planning, as a clean S-corp with no E&P never faces this rule again.
Cheaper than losing S status, because C-corp double taxation usually costs far more.
Within your control, since you choose when to declare the dividend.

Cons

Shareholders owe tax now, because the distribution is a taxable dividend.
Reduces cash on hand, which may strain a business already leaning on passive income.
Requires accurate E&P math, and an error can leave a residual balance that still triggers the rule.
California’s 90-day consent-dividend window adds pressure when E&P is found late.
Timing is unforgiving, since the year-end deadline leaves no grace period.

What to Do Next

Pull your E&P history. Confirm whether you ever operated as, or absorbed, a C corporation. If E&P is zero, you are done.
Run the 25% test for 2025. Add up gross receipts and passive investment income, then compare PII to 25% of gross receipts.
Count your streak. If 2025 would be your third straight violation year, this is urgent.
Decide on a year-end E&P distribution. If you are over the line with E&P, plan the dividend before December 31, 2025.
Gather records. Keep documentation of services on rental property and the source of each passive dollar.
Call a professional now if you carry C-corp E&P. A CPA or tax attorney can run the ENPI tax on Form 1120-S, file a Section 1375(d) waiver, or pursue Section 1362(f) relief. This article is educational and is not a substitute for advice on your specific situation.

Frequently Asked Questions

Can passive income terminate my S-corp election? Yes — but only if you carry accumulated C-corp earnings and profits. With that E&P, passive income over 25% of gross receipts for three consecutive years ends the election under Section 1362(d)(3) for tax year 2025.

Does the rule apply to an S-corp that was never a C corporation? No. A corporation that was always an S-corp has no Subchapter C earnings and profits, so neither the Section 1375 tax nor the three-year termination can apply, regardless of how much passive income it earns.

What income counts as passive for this rule? Rents, royalties, dividends, interest, and annuities are passive investment income under Section 1362(d)(3)(C). Active-business rents and ordinary-course lending interest are excluded, and post-2007 stock-sale gains count only toward gross receipts.

What is the passive-income tax rate for 2025? 21%. The Section 1375 tax equals excess net passive income times the highest corporate rate, which is a flat 21% for tax year 2025, applied at the entity level on Form 1120-S.

How many years can I exceed 25% before losing S status? Three consecutive years. Termination takes effect on the first day of the fourth year. Breaking the streak once — usually by zeroing out E&P — resets the count to zero.

How do I stop the termination clock? Distribute all accumulated C-corp E&P as a taxable dividend before the last day of the tax year. With zero year-end E&P, that year is not a violation year and the streak resets.

Can the IRS waive the passive-income tax? Yes. Under Section 1375(d), the IRS may waive the tax if you determined in good faith that you had no E&P and then distributed it within a reasonable time after discovering it.

What happens after my S election terminates? You become a C corporation. Profits face entity-level tax plus tax on dividends, and you generally cannot re-elect S status for five years under Section 1362(g) without IRS consent.

Can I undo an accidental termination? Yes, sometimes. Section 1362(f) lets the IRS treat an inadvertent termination as if it never happened, but it requires a private letter ruling, an IRS user fee, and several months.

Does California tax S-corp passive income too? Yes. California conforms to the federal rule under R&TC Section 23811 but charges 8.84% on California-source excess net passive income, on top of the federal 21% and the separate 1.5% S-corp franchise tax.

Does selling stock or securities count as passive income? No, not as passive income. For years after May 25, 2007, gains from selling stock or securities count toward gross receipts but are not treated as passive investment income in the 25% test.

Where do I report and pay this tax? On Form 1120-S. The Section 1375 tax is computed and paid at the corporate level with your annual S-corp return; California ENPI tax is reported on the state franchise-tax return.

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