Account concentration can create an employer cost
A defined contribution plan generally is top-heavy when more than 60% of its relevant account value is attributable to key employees, using the applicable determination-date and aggregation rules. A top-heavy plan can owe minimum employer contributions for non-key employees even when those employees make no elective deferrals. A business owner should therefore review the top-heavy calculation before assuming that a low employee participation rate makes aggressive owner retirement funding inexpensive. Key-employee status is a specific statutory classification involving ownership and compensation rules; it is not the same as being highly compensated for every other plan test. Certain qualifying safe-harbor arrangements can avoid the top-heavy minimum in specified circumstances, but adding other contribution features can change that conclusion. Obtain the administrator's actual analysis instead of relying on the plan's marketing name.
Show the minimum contribution in the funding budget
Assume the administrator determines that a small plan is top-heavy, the applicable minimum is 3% of compensation, and six covered non-key employees each have $60,000 of relevant compensation. Their combined compensation is $360,000, and the illustrative minimum employer contribution is $10,800. If none of them deferred salary, their lack of deferrals does not reduce that assumed minimum to zero. Now suppose the owner intended to fund $40,000 for the owner's account and reserved only that amount. The company is at least $10,800 short under these simplified assumptions before other plan contributions and expenses. The actual minimum can depend on the highest key-employee contribution rate, eligible compensation, account and plan aggregation, existing contributions, and employee eligibility conditions. The example demonstrates a funding obligation, not a universal 3% charge for every plan.
Supply ownership and participant histories
Give the administrator the current and prior ownership map, family relationships, officer information, compensation census, account balances, distributions, and all related-employer retirement plans. Attribution and required aggregation can change who is a key employee and which balances are counted. A founder cannot assume only the current company's account statement matters if related businesses sponsor other plans. Ask the administrator to identify the determination date, calculation denominator, excluded balances, and key-employee numerator. Preserve the report alongside the annual allocation file. If ownership changed during the year, provide the effective dates rather than simply overwriting last year's owner percentage. Different plan tests can use different definitions and periods, so one census field labeled owner is not adequate evidence for every calculation.
Review the determination with the administrator before approving distributions, because a later employee minimum may otherwise require borrowing to complete promised retirement funding.
Confirm who receives the minimum and when
Identify non-key employees entitled to the minimum under the applicable rules and plan terms. Do not exclude someone solely for declining salary deferrals or working fewer hours than management expected. Determine whether existing employer contributions satisfy some or all of the obligation and whether separate plans affect where it must be funded. Review vesting requirements and contribution deadlines with the administrator. If a missed minimum is found, calculate the corrective contribution and earnings under a supported correction route instead of quietly adding an unrelated current-year match. The records should connect the correction to the affected year and participants. Also determine whether a safe-harbor exception was actually available; a plan that includes additional profit-sharing allocations may require a different analysis from a plan limited to qualifying safe-harbor contributions.
Use the result before committing owner cash
Add the employee minimum to the company's retirement funding projection before authorizing owner distributions. Stress-test account concentration when employee turnover or owner contributions change balances. A plan can become top-heavy because non-key employees leave and take distributions, even without a new owner contribution. Ask for preliminary calculations early enough to influence funding choices and preserve the final determination after year-end. Compare alternative plan designs using total employer expense, administration, and employee benefits rather than only the maximum deductible amount allocated to the founder. The practical outcome is a retirement budget that funds the owner and all required employee benefits. Top-heavy status is a plan-specific economic constraint, so an owner should understand it as an actual company obligation rather than a technical formality left to the tax return deadline.
Sources & further reading
Consult the original guidance and its effective dates. These references support the educational discussion; their application depends on the specific facts.