A separate statutory test can apply
A C corporation owned by a small group can become a personal holding company under specific income and stock-ownership tests. IRS guidance describes an income test of at least sixty percent of adjusted ordinary gross income from specified personal-holding-company categories and an ownership test involving more than fifty percent in value held directly or indirectly by five or fewer individuals at any time during the last half of the year. Exceptions, attribution, and the defined income categories require review.
The resulting tax generally applies at twenty percent to undistributed personal holding company income, not mechanically to the bank balance. This is distinct from the accumulated-earnings tax analysis and should not be dismissed because management has a commercial reserve memo. A business shifting from operations to investments should screen both relevant regimes with the advisor rather than assume ordinary corporate income tax completes every calculation.
A hypothetical income-mix change
Assume a closely held corporation has $250,000 of active operating income and $450,000 of items the advisor determines fall within the relevant PHC income categories. If the simplified adjusted ordinary gross income denominator is $700,000, the specified-income ratio is about 64.3 percent. That exceeds the general sixty-percent screen. The actual tax calculation still requires the statutory definitions, exclusions, ownership analysis, and undistributed-income adjustments.
Suppose one founder owns all stock. The concentrated-ownership issue is apparent under those simplified facts, but a company with several entities or trusts in its ownership chain still needs attribution analysis. Counting names on the stock ledger is not necessarily the same as counting the relevant individuals. Give the advisor the complete ownership map and changes during the last half of the year.
Now suppose active income grows enough that the ratio drops below sixty percent. The calculation should be recomputed from the actual year’s defined amounts rather than treat the company as permanently within or outside the regime. A single investment gain or changed receipt classification can affect the screen differently from management’s ordinary income presentation. The tax workpaper should show the bridge from accounting records to the defined measures.
Classify income before applying percentages
Provide dividend, interest, rent, royalty, annuity, service, and other income records as requested. Some categories have exceptions and conditions, so the ordinary financial label does not settle the PHC calculation. The advisor should explain why each item is included or excluded. Do not assume all rental income always counts identically, or that capital gains are treated the same as recurring interest for every part of the computation.
Keep detailed statements for investment accounts and related-party arrangements. A net brokerage deposit does not show the gross income categories needed. Reconcile the schedule to the corporate return and financial statements without forcing unlike measures to match. The owner should understand which assumptions remain preliminary before making a year-end distribution decision.
Compare planning alternatives with shareholder tax
If the screen identifies exposure, ask the advisor and counsel to evaluate available lawful actions and timing. Distributions, corporate restructuring, and investment decisions have separate shareholder and business consequences. A dividend may reduce one corporate measure while creating owner tax and reducing operating liquidity. Model the full result instead of treating any cash payment as an automatic cure.
Document the decision, approvals, calculation, payment, and reporting. Do not buy unnecessary operating assets or invent service receipts to change an income ratio. The commercial transactions and tax character must be real. If a proposed transaction changes before execution, obtain an updated analysis rather than rely on a stale screen.
Monitor the transition out of operations
Retain annual PHC screens, ownership records, income classifications, distribution workpapers, and Schedule PH reporting where required. This guide does not determine PHC status or tax for a particular company. It gives a founder a specific review trigger: when a concentrated-ownership C corporation increasingly earns investment-type income, assess the separate PHC rules before assuming it can indefinitely function as an ordinary investment account.
When ownership changes late in the year, preserve the exact dates and value information the advisor requests. The ownership test is not limited to the December closing snapshot. A transaction that appears minor commercially can still require an updated last-half-of-year analysis.
Sources & further reading
Consult the original guidance and its effective dates. These references support the educational discussion; their application depends on the specific facts.