A closely held corporation is a C corporation in which more than 50% of the value of the outstanding stock is owned, directly or indirectly, by five or fewer individuals at any time during the last half of the tax year, and which is not a personal service corporation.1Internal Revenue Service. Publication 542 – Corporations That concentrated ownership matters because federal tax law imposes a distinct set of rules on these corporations: limits on using passive losses, caps tied to what shareholders actually have at risk, and in some cases penalty taxes stacked on top of the standard 21% corporate rate.
Two conditions must be satisfied at the same time. The ownership threshold must be met during the last half of the tax year, and the corporation must not be a personal service corporation. Personal service corporations are those whose principal activity is performing services in fields including health, law, engineering, architecture, accounting, actuarial science, consulting, or the performing arts.2Internal Revenue Service. Entities 5 Those corporations follow their own, generally stricter, passive activity rules. For purposes of counting owners, the word “individual” also captures certain trusts and private foundations, not only natural persons.
The stock ownership test itself originates in IRC §542(a)(2), the personal holding company statute. The passive activity loss rules pick up the same threshold by cross-reference.3Office of the Law Revision Counsel. 26 U.S. Code 469 – Passive Activity Losses and Credits Limited One ownership test, two overlapping tax classifications.
How the Five-or-Fewer Ownership Test Actually Works
Counting shareholders isn’t a matter of reading the stock ledger. Under IRC §544, the IRS attributes stock held by related parties to a single individual when applying the ownership test. Shares owned by a spouse, parents, grandparents, children, grandchildren, or siblings (including half-blood) are treated as owned by that individual.4Office of the Law Revision Counsel. 26 USC 544 – Rules for Determining Stock Ownership
Entity ownership is attributed too. Stock held by a corporation, partnership, estate, or trust is treated as owned proportionately by its shareholders, partners, or beneficiaries. If a trust holds 30% of a corporation’s stock and you are one of two equal beneficiaries, you constructively own 15%. Options to acquire stock count as if the shares were already held.4Office of the Law Revision Counsel. 26 USC 544 – Rules for Determining Stock Ownership
Attribution stacks in one direction only. Stock attributed to you through an entity is treated as actually owned, so it can then be re-attributed to your family members. Stock attributed to you through the family rule, however, cannot be re-attributed to yet another family member.4Office of the Law Revision Counsel. 26 USC 544 – Rules for Determining Stock Ownership The rule captures real economic control without producing infinite attribution chains.
Passive Activity Loss and Credit Limits
Closely held C corporations get a partial concession under IRC §469(e)(2). They can use passive activity losses to offset active business income, which individuals and personal service corporations cannot do. What they cannot do is use those passive losses to shelter portfolio income such as dividends, interest, capital gains, or annuities. The same restriction applies to passive activity credits.3Office of the Law Revision Counsel. 26 U.S. Code 469 – Passive Activity Losses and Credits Limited
Take a corporation with $80,000 of passive rental losses, $60,000 of active business income, and $40,000 of dividend income. Sixty thousand of the passive losses offset the active income. The remaining $20,000 cannot touch the dividends. Those unused losses carry forward until the corporation generates enough active or passive income to absorb them.
Whether an activity is passive turns on material participation. For a closely held corporation, the activity is not passive if shareholders holding more than 50% of the stock by value materially participate in it. Those shareholders establish material participation by meeting one of seven IRS tests, the most common being 500 hours in the activity during the year. Other tests reach participation of more than 100 hours where no one else participated more, a five-of-last-ten-years history, or a facts-and-circumstances showing of regular, continuous, and substantial involvement.5Internal Revenue Service. Publication 925 – Passive Activity and At-Risk Rules
The At-Risk Limitation
Clearing the passive activity rules is not enough on its own. Under IRC §465, a closely held C corporation can deduct a loss only up to the amount it actually has at risk in the activity.6Office of the Law Revision Counsel. 26 USC 465 – Deductions Limited to Amount at Risk
The at-risk amount includes cash invested, the adjusted basis of property contributed, and amounts borrowed for which the corporation is personally liable or has pledged outside property as security. It does not include amounts protected against loss through nonrecourse financing, guarantees, or stop-loss agreements, and it does not include amounts borrowed from a person with an interest in the activity or from a related person.6Office of the Law Revision Counsel. 26 USC 465 – Deductions Limited to Amount at Risk
If the corporation puts $100,000 into a venture but only $20,000 qualifies as at risk, the deductible loss is capped at $20,000 no matter what the venture actually loses. The excess suspends and carries forward. Each year that an allowable deduction is taken, the at-risk amount for future years drops by the same figure, so the tracking runs year over year.
Personal Holding Company Tax
A closely held corporation dominated by investment income risks classification as a personal holding company, which triggers an extra 20% tax on undistributed personal holding company income on top of the regular 21% corporate tax.7Office of the Law Revision Counsel. 26 USC 541 – Imposition of Personal Holding Company Tax Two tests apply:
- Ownership: more than 50% of outstanding stock is owned by five or fewer individuals during the last half of the tax year, using the same constructive ownership rules.
- Income: at least 60% of adjusted ordinary gross income is personal holding company income.8Office of the Law Revision Counsel. 26 USC 542 – For Purposes of This Subtitle
Personal holding company income covers dividends, interest, most royalties, and annuities.9Office of the Law Revision Counsel. 26 U.S. Code 543 – Personal Holding Company Income Rental income can be included, though an exception applies where adjusted rental income makes up at least 50% of adjusted ordinary gross income and the corporation meets specific dividend distribution requirements. Mineral, oil, and gas royalties carry their own separate exception.
The tax exists to stop wealthy individuals from parking investments inside a corporation, paying the lower corporate rate, and letting earnings accumulate untaxed at the individual level. A corporation meeting both tests files Schedule PH with its Form 1120.10Internal Revenue Service. Instructions for Schedule PH (Form 1120) The most direct way to avoid the tax is to distribute enough dividends before year-end to zero out undistributed personal holding company income.
Accumulated Earnings Tax
The accumulated earnings tax is a separate 20% penalty aimed at corporations that hold onto more profit than the business reasonably needs, on the theory that the retention is really about helping shareholders avoid personal tax on dividends.11Office of the Law Revision Counsel. 26 USC 531 – Imposition of Accumulated Earnings Tax
Where the personal holding company tax runs on objective ownership and income tests, the accumulated earnings tax turns on an IRS judgment about the corporation’s business justification for retaining profits. A minimum credit of $250,000 shields most corporations at the low end. Service corporations in fields such as health, law, engineering, and consulting have a lower $150,000 threshold.12Office of the Law Revision Counsel. 26 USC 535 – Accumulated Taxable Income Above the floor, the corporation must show reasonable business needs for the retained earnings, such as planned expansion, debt repayment, or working capital requirements.
A corporation classified as a personal holding company is not subject to the accumulated earnings tax.13eCFR. 26 CFR 1.532-1 – Corporations Subject to Accumulated Earnings Tax It’s one or the other, never both. For closely held corporations that don’t fit the personal holding company pattern, the accumulated earnings tax is the bigger practical exposure, especially where owners reinvest profits and skip dividends.
Electing S Corporation Status
Many closely held corporations sidestep these problems by electing S corporation status. An S corp is a pass-through entity: profits and losses flow to the shareholders’ individual returns, the corporate-level tax disappears, and neither the personal holding company tax nor the accumulated earnings tax applies.
Eligibility is restrictive. The corporation must be a domestic entity, have no more than 100 shareholders, have only one class of stock, and limit shareholders to individuals, certain trusts, and estates. Partnerships, other corporations, and nonresident aliens cannot hold shares. Certain financial institutions, insurance companies, and domestic international sales corporations are ineligible outright.14Internal Revenue Service. S Corporations
The election is made on Form 2553, signed by all shareholders, and generally must be filed within two months and 15 days after the beginning of the tax year in which it takes effect. Late elections may receive relief on a showing of reasonable cause.14Internal Revenue Service. S Corporations The trade-offs are real: built-in gains on assets held at the time of the election may face a corporate-level tax if sold within five years, and the single-class-of-stock rule forecloses different economic rights for different owners.
Shareholder Agreements and Minority Protections
Tax rules are only part of the picture. With few owners and no public market for the stock, a dispute can freeze the business. A dissatisfied minority shareholder cannot simply sell into a market and walk away. The protections come through shareholder agreements and buy-sell agreements negotiated while the relationship is still functional.
A buy-sell agreement sets out what happens on a triggering event, such as death, long-term disability, retirement, or a shareholder’s decision to sell. Without one, a deceased shareholder’s heirs can end up as unwanted co-owners, or a departing shareholder can sell to an outsider. These agreements typically establish a valuation formula and a process for the purchase, often funded by life insurance or disability buy-out policies so the corporation or remaining shareholders have the cash to close.
Minority shareholders are exposed because the majority controls compensation, dividend policy, and employment. Courts in many states apply a heightened fiduciary duty to controlling shareholders in close corporations, sometimes analogizing their obligations to those of partners. Available remedies for minority oppression can include judicial dissolution, a court-ordered buyout at fair value, or injunctive relief. The less costly path is to negotiate protections in advance: super-majority voting requirements for major decisions, guaranteed board seats, mandatory dividend policies when surplus crosses a set level, and rights of first refusal on share transfers.