A Five-Percent Owner Generally Cannot Receive a Section 423 Purchase Option

Employee status does not override the ownership exclusion

A qualifying section 423 employee stock purchase plan generally cannot grant an option to an employee who, immediately after the grant, owns stock possessing 5% or more of total combined voting power or value of the employer or relevant parent or subsidiary. Attribution rules and stock purchasable under outstanding options can matter. A founder should therefore test ownership before joining an ESPP rather than assuming ordinary employee status establishes eligibility. Exactly 5% can fail this rule, unlike tax provisions using more than 5%. A company may offer a nonqualifying stock purchase arrangement, but it should not promise section 423 treatment without satisfying the conditions. This is different from incentive stock option rules, which have their own owner limitations. The plan administrator needs a complete ownership and option schedule at the relevant grant time.

Include the award and other purchase rights

Assume a founder owns 4,800 of 100,000 relevant outstanding shares before considering other rights, or 4.8%. Suppose the founder also has rights under outstanding options that must be counted under the applicable ownership rules. The administrator cannot conclude that the founder qualifies merely because the direct ledger percentage is below 5%. If the required calculation after grant produces 5% or more of voting power or value, the section 423 option cannot qualify for that recipient. In a simple illustration with no attribution or option complexity, a person already owning exactly 5,000 of 100,000 equal shares meets the prohibited 5% level. These examples are not a substitute for the statutory ownership computation, which can treat options and related corporations differently from a diluted capitalization table used for investor negotiations. Determine both voting power and value.

Collect attributed ownership and grant-date facts

Obtain the capitalization table, classes and voting rights, family relationships, trust and entity holdings, outstanding options, parent and subsidiary ownership, and the proposed grant terms. Use the applicable section 423 and section 424 attribution rules rather than assuming the same family definition used for an S corporation health benefit applies. Record the grant date, not merely the payroll enrollment date or later purchase date. A founder's ownership can change through financing, option exercises, or buybacks, so update the calculation for each relevant offering. Preserve valuation support if voting rights and economic value differ by class. The company's payroll system may accept an election without screening ownership. Eligibility should be approved through stock administration using a documented test before salary deductions begin under a supposedly qualifying offering.

Separate qualification from purchase taxation

If the founder qualifies, section 423 still imposes plan, option, price, holding-period, and annual accrual-limit requirements. The 5% test is only one gate. Later sale taxation can include compensation and capital-gain components, with Form 3922 and basis records relevant. If the founder does not qualify, determine whether the company offers a separately documented non-section-423 arrangement and what compensation rules apply to it. Do not simply retain a qualifying plan label and hope the individual's ownership is too small to be noticed. Correct enrollment and payroll deductions through the actual plan procedures if an ineligible award was granted. An owner should not be told that every discounted share purchase is tax deferred until sale without classifying the award and satisfying the relevant statutory conditions.

Choose owner equity compensation with the threshold visible

Compare eligible purchase-plan participation, nonstatutory options, restricted stock, and cash compensation using dilution, current tax, withholding, company cost, and employee rights. A different award should be analyzed on its own rules rather than assembled from the favorable parts of several regimes. Keep the ownership approval and award documents with permanent stock records and notify the administrator before any transaction that changes the founder's percentage. The useful result is an award the company can validly administer and report. It is not an attempt to squeeze a founder into an employee benefit whose ownership exclusion was overlooked. Testing the threshold before grant avoids an unsupported tax promise and gives the founder a clear comparison of the compensation alternatives actually available.

The approval file should state the post-grant ownership result explicitly, including attributed and option-held shares, rather than merely retain a capitalization table that never shows the statutory test.