Personal Holding Company Tax (IRC 541): The 20% Penalty on C-Corps That Earn Passive Income

By Yarik Yarosh, CPA ·September 5, 2026 ·Updated October 24, 2026 ·7 min read

Written by Yarik Yarosh, CPA (US & Canada) September 5, 2026 · FL CPA license AC61704 · CPA Ontario

The personal holding company (PHC) tax under IRC 541 is a 20% penalty tax designed to prevent closely held C-Corporations from being used as “incorporated pocketbooks,” holding passive investments and deferring tax at the 21% corporate rate rather than distributing income to shareholders. The tax applies when a C-Corp meets two mechanical tests: at least 60% of its adjusted ordinary gross income is passive (dividends, interest, rents, royalties, certain personal service income), and more than 50% of the stock is owned (directly or constructively under IRC 544) by five or fewer individuals at any time during the last half of the tax year. The PHC tax is self-assessed (reported on Schedule PH of Form 1120) and is in addition to the regular corporate tax. Because the 20% applies after the 21% corporate tax is deducted, the combined rate on undistributed income is about 36.8%. The primary defense is to distribute the income as dividends (either during the year or as a “deficiency dividend” after the PHC status is discovered), but this triggers shareholder-level tax.

✓Key takeaway

PHC classification tests:

Test	Requirement	How to Measure
Income test	At least 60% of adjusted ordinary gross income (AOGI) is PHC income	PHC income / AOGI >= 60%
Ownership test	More than 50% of stock owned by 5 or fewer individuals	Apply constructive ownership rules (IRC 544): family attribution, entity attribution, option attribution

Types of PHC income (IRC 543):

Income Type	PHC Income?	Notes
Dividends	Yes	Always PHC income
Interest (taxable)	Yes	Tax-exempt interest excluded
Royalties	Yes (unless exception applies)	Separate exceptions for mineral, oil and gas royalties, copyright royalties and active business software royalties, each with its own tests (IRC 543(a)(3), (a)(4), (d))
Rents	Yes (unless exception applies)	Rent exception if rents are 50%+ of AOGI and dividends paid at least equal the amount by which other PHC income exceeds 10% of ordinary gross income
Personal service contract income	Yes (if shareholder can be designated)	When someone other than the corporation can designate the individual who performs services, and that individual owns 25%+ of the stock
Capital gains	No	Excluded from AOGI calculation
Active business operating income	No	Regular business revenue not included

PHC tax computation:

Step	Calculation
1. Taxable income	Start with Form 1120 taxable income
2. Plus: dividends-received deduction (DRD)	Add back IRC 243 deduction
3. Less: federal income tax	Subtract corporate tax
4. Less: dividends paid deduction	Subtract dividends paid during the year
5. = Undistributed PHC income	The amount subject to the 20% PHC tax
6. PHC tax = 20% x undistributed PHC income	Reported on Schedule PH

How does the PHC tax trap work, and how do you avoid it?

Hypothetical example

Round numbers. A physician owns 100% of a C-Corporation. The corporation earns $400,000 in medical practice revenue and $300,000 in investment income (dividends and interest from a brokerage account held in the corporate name).

Step 1: Does the corporation meet the ownership test?

Factor	Analysis
Number of individual shareholders	1 (the physician)
Owns more than 50%?	Yes (100%)
Ownership test met?	Yes

Step 2: Does the corporation meet the income test?

Income Category	Amount	PHC Income?
Medical practice revenue	$400,000	Possibly: the physician can be “designated” by patients/referring doctors, and owns 25%+ of the stock
Investment dividends	$150,000	Yes
Investment interest	$150,000	Yes
Total gross income	$700,000
PHC income	$700,000 (assumes the practice revenue comes under contracts that let someone other than the corporation designate the physician; if not, PHC income is $300,000, or 42.9%, and the income test fails)
PHC income / AOGI	100%
Income test met?	Yes (>= 60%)

Step 3: Compute the PHC tax

Line	Amount
Taxable income (after deductions)	$500,000
Plus: dividends-received deduction	$0 (no corporate dividends received)
Less: federal income tax ($500,000 x 21%)	($105,000)
Less: dividends paid during the year	($0) (no dividends declared)
Undistributed PHC income	$395,000
PHC tax (20%)	$79,000

Total tax on the corporation:

Tax	Amount
Regular corporate tax (21%)	$105,000
PHC tax (20% on $395,000)	$79,000
Total corporate-level tax	$184,000
Effective corporate rate	36.8%

How to eliminate the PHC tax: The corporation declares and pays $395,000 in dividends to the physician before year-end.

Revised Calculation	Amount
Undistributed PHC income	$500,000 - $105,000 (tax) - $395,000 (dividends) = $0
PHC tax	$0
Corporate tax	$105,000
Shareholder tax on $395,000 dividend (20% qualified + 3.8% NIIT)	$94,010
Total tax (corporate + shareholder)	$199,010

Comparison:

Approach	Corporate Tax	PHC Tax	Shareholder Tax	Total
No dividends (PHC trap)	$105,000	$79,000	$0	$184,000
Distribute to avoid PHC	$105,000	$0	$94,010	$199,010
S-Corp election (avoids both)	$0	$0	Owner’s individual rates on all $500,000	Depends on the owner’s bracket

The S-Corp election generally eliminates both the corporate tax and the PHC tax. A former C-Corp can still owe the built-in gains tax (IRC 1374), and if it has accumulated earnings and profits, it can owe a separate tax when passive investment income exceeds 25% of gross receipts and lose S status after 3 such years in a row (IRC 1375, 1362(d)(3)). For closely held professional corporations that might accumulate passive income, the S-Corp election is often the simplest solution.

The deficiency dividend procedure (IRC 547): If a corporation discovers PHC status after year-end (often during an IRS audit):

Step	Action
1	IRS determines PHC liability
2	Corporation files Form 976 (Claim for Deficiency Dividends)
3	Corporation pays the deficiency dividend within 90 days after the determination and files the claim within 120 days
4	PHC tax is eliminated (but interest and penalties on the late payment still apply)

Planning strategies to avoid PHC status:

Strategy	How It Works
Distribute income as dividends	Reduces undistributed PHC income to zero
Elect S-Corp status	PHC tax doesn’t apply to S-Corps
Increase active business income above 40%	Breaks the 60% PHC income test
Use the rent exception	If rents are 50%+ of AOGI and dividends paid cover other PHC income above 10% of ordinary gross income
Use a royalty exception	Mineral, copyright and active software royalties each have their own tests (IRC 543)
Spread ownership so no 5 individuals own more than 50%	Breaks the ownership test (difficult for true small businesses)
Pay reasonable compensation to shareholder-employees	Compensation is deductible, reducing taxable income and so undistributed PHC income (it does not change AOGI or the income test)

Illustrative numbers only, not a real client and not advice for your facts.

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Cite this page

Yarik Yarosh, CPA. "Personal Holding Company Tax (IRC 541): The 20% Penalty on C-Corps That Earn Passive Income." Blue Cloud CPA, September 5, 2026, updated October 24, 2026. https://bluecloudcpa.com/guides/small-business-personal-holding-company-tax-irc-541

This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.