ROBS Top-Heavy Testing

A ROBS top-heavy test begins with a qualified plan, meaning an employer retirement plan that must satisfy the Internal Revenue Code in written form and operation. For a defined-contribution ROBS 401(k) plan, section 416 says the plan is top-heavy for a plan year when, as of the determination date, aggregate key-employee accounts exceed 60 percent of aggregate accounts for all employees under the plan. Required aggregation can cause a plan to be treated as top-heavy when the aggregation group is top-heavy. Current section 416 controls when older regulation Q&A text conflicts with amended Code text.^[1][7][8]

In the conventional ROBS structure, the plan sponsor is a C corporation and the plan's founder account can hold a concentrated employer-stock position bought with rollover assets before non-key employees accumulate meaningful balances. IRS ROBS materials warn that determination letters address plan form, not discriminatory operation, prohibited transactions, valuation, Form 5500, Form 1120, rollover, participant, or stock-purchase operation. Top-heavy testing therefore belongs in the same annual evidence file as coverage, nondiscrimination, employer-stock valuation, and fiduciary records.^{[7][9][10][17][18][19]}

The working formula is adjusted key-employee accounts ÷ adjusted all-employee accounts = top-heavy percentage. Keep the source balance report, most recent valuation date within the 12-month period ending on the determination date, contributions due as of the determination date, first-plan-year allocation support where relevant, private-company stock valuation, distribution register, rollover and transfer ledger, participant status, beneficiary status, former-key classification, and aggregation explanation with the calculation.^{[1][9][10][11][17]}

Key employee is a section 416 term. In 2026, the indexed officer dollar limit in the IRS COLA table is $235,000. Section 416 also includes any more-than-5-percent owner and any more-than-1-percent owner with annual compensation from the employer over $150,000. Section 416 ownership uses section 318 constructive ownership principles with modifications, and it states that section 414 controlled-group aggregation rules do not apply for determining ownership in the employer for key-employee classification.^[1][6]

HCE means highly compensated employee under section 414(q). HCE status matters for 410(b), 401(a)(4), ADP, and ACP testing, while key-employee status matters for top-heavy testing. A founder can be both, one, or the other depending on the year, ownership, compensation, attribution, and officer status. Related employers still matter because section 414 treats controlled group, common-control, and affiliated service group employees as one employer for sections including 410 and 416.^{[1][2][3][4][6][14]}

Section 416 increases account balances by distributions made during the one-year period ending on the determination date. For a distribution made for a reason other than severance from employment, death, or disability, section 416 substitutes a five-year period. The same distribution rule applies to distributions under a terminated plan that would have been required in an aggregation group if it had not terminated.^[1]

Employee-initiated rollover contributions and similar transfers made after December 31, 1983 generally are excluded with respect to the transferee plan, except as regulations provide. The ROBS record still keeps rollover and direct-transfer support because IRS ROBS project materials specifically ask about the rollover or transfer into the ROBS plan and the plan's stock purchase. Section 416 also includes beneficiaries in employee and key-employee references, removes certain former-key accounts from the calculation, and disregards accounts for individuals who performed no service during the one-year period ending on the determination date.^[1][9][10]

Frozen, terminated, acquired, spun off, or successor-employer years require a handoff memo. Section 414 addresses predecessor service. Section 416 addresses terminated plans in distribution lookbacks and multi-plan coordination. Section 410 contains acquisition transition concepts that can affect adjacent coverage files. This article uses those authorities to identify the file questions, not to state a plan-specific outcome.^[1][2][4]

Required aggregation includes each employer plan in which a key employee is a participant and each other employer plan that enables a key-employee plan to meet section 401(a)(4) or 410. Permissive aggregation may add another employer plan only if the aggregation group continues to meet sections 401(a)(4) and 410 with that plan included. A top-heavy group exists when the combined key-employee present values and defined-contribution accounts exceed 60 percent of the combined all-employee values and accounts.^{[1][3][4][14]}

In a ROBS company, aggregation review should ask whether the founder, spouse, family, management company, acquisition vehicle, franchise entity, real estate entity, or successor employer sponsors another plan or employs workers who affect sections 410 and 416. The owner map should distinguish legal employer, payroll employer, common-control employer, affiliated-service facts, predecessor service, plan sponsor, plan administrator, and recordkeeper.^{[1][2][4][9][17]}

A top-heavy defined-contribution plan generally must provide an employer contribution for each participating non-key employee who has not separated from service by the end of the plan year. Section 416 provides this minimum even when the participant has fewer than 1,000 hours of service, would otherwise miss a last-day or hours allocation condition, has compensation below a stated amount, or made no elective deferral. The amount is generally at least 3 percent of section 415 compensation, capped at the highest contribution percentage for any key employee for the year when that percentage is lower. Matching contributions are taken into account for this minimum.^{[1][5][6][11]}

Section 416(c)(2)(C) is a separate age-and-service exclusion. Employees who have not met section 410(a)(1) age or service requirements, without regard to the long-term part-time rule in section 410(a)(1)(B), may be excluded when determining whether the plan meets the defined-contribution minimum contribution rule. Contribution ordering and allocation records should show elective deferrals, safe harbor contributions, matching contributions, nonelective or profit-sharing contributions, forfeiture use, employer-stock allocations, corrective entries, compensation under section 415 and the plan definition, current employment conditions, and vesting schedule. Section 416 also imposes top-heavy vesting alternatives, and IRS guidance tells employers to operate the plan according to its written terms.^[1][4][7][8]

When the employer has more than one plan, section 416 directs regulations to coordinate minimum benefits and contributions to prevent inappropriate omissions or required duplication. A ROBS file should preserve which plan provided the minimum, which participants received it, which compensation was used, and how the result tied to Form 5500, payroll, Form 1120, Form 945, and Form 1099-R handoffs when those handoffs exist.^{[1][18][19][20][21][22]}

IRS overview material says safe harbor 401(k) plans that do not provide any additional contributions in a year are exempted from section 416 top-heavy rules. Section 416 excludes a plan that consists solely of a cash-or-deferred arrangement meeting section 401(k)(12) or 401(k)(13) and matching contributions meeting the applicable section 401(m) safe harbor provisions, and also excludes specified starter and safe harbor deferral-only arrangements. Those words make the boundary narrow: additional contributions, employer-stock allocations, aggregation, missed notices, amended terms, or operational defects can move the file out of a simple exemption conclusion.^{[1][3][8][12][13]}

Nondiscrimination and coverage pages answer 401(a)(4), ADP, ACP, 410(b), HCE, otherwise-excludable, and benefits-rights questions. Employee eligibility, hiring, plan-offer, and stock-access pages answer who enters the plan and what rights they receive. Annual administration and Form 5500, 945, 1120, and 1099-R pages answer recurring filing and tax-reporting lanes. Valuation, prohibited-transaction, audit/disqualification, correction, tax, exit, and IRS-rules pages handle issues that may be triggered by the top-heavy file but remain separate legal and operational conclusions.^{[3][4][7][9][15][17][18][19][20][21][22]}

Access date for non-eCFR listed sources: July 31, 2026. Official IRS, DOL, OLRC, and eCFR sources were preferred. Currency limits: OLRC displays laws in effect on July 24, 2026 for cited Code sections; IRS page-review dates vary by page; IRS COLA limits change annually; eCFR source notes identify the retained July 21, 2026 dated API records and the July 31, 2026 recheck limit; the Federal Register and annual CFR control if regulation text changes. This guide provides education for documenting top-heavy work and does not approve a specific ROBS arrangement, provider, valuation, correction method, safe-harbor design, filing form, controlled-group result, or tax outcome.

1. [1] 26 USC 416

   Reviewed July 31, 2026. OLRC text states laws in effect July 24, 2026. Used for top-heavy definition, 60 percent defined-contribution test, determination date, distributions lookback, rollovers, former key employees, no-service rule, key-employee categories, beneficiaries, aggregation groups, safe-harbor exclusion, vesting, minimum contributions, and multi-plan coordination.

2. [2] 26 USC 414

   Reviewed July 31, 2026. OLRC text states laws in effect July 24, 2026. Used for HCE definition cross-reference, compensation definition cross-reference, controlled group, common control, affiliated service group, predecessor service, plan administrator, and related-employer map.

3. [3] 26 USC 401

   Reviewed July 31, 2026. OLRC text states laws in effect July 24, 2026. Used for qualified trust, 401(a)(4), 401(k), safe harbor cross-references, exclusive-benefit context, employer securities, and contribution ordering context.

4. [4] 26 USC 410

   Reviewed July 31, 2026. OLRC text states laws in effect July 24, 2026. Used for age, service, coverage, acquisition transition, and aggregation handoffs.

5. [5] 26 USC 415

   Reviewed July 31, 2026. OLRC text states laws in effect July 24, 2026. Used for section 416 defined-contribution minimum contribution compensation cross-reference and annual additions context.

6. [6] IRS COLA increases

   Reviewed July 31, 2026. IRS page last reviewed June 9, 2026. Used for 2026 annual compensation limit $360,000, HCE threshold $160,000, defined-contribution limit $72,000, elective deferral limit $24,500, and key-employee officer dollar limit $235,000. Dollar limits change annually.

7. [7] IRS guide to common qualified plan requirements

   Reviewed July 31, 2026. IRS page last reviewed August 26, 2025. Used for form-and-operation principle, top-heavy overview, 60 percent concentration description, plan-document operation, reporting, correction, coverage, nondiscrimination, vesting, and controls.

8. [8] IRS 401(k) plan overview

   Reviewed July 31, 2026. IRS page last reviewed August 26, 2025. Used for traditional, safe harbor, SIMPLE 401(k), ADP, ACP, top-heavy overview, safe-harbor top-heavy exemption language, matching and nonelective contributions, vesting, payroll reporting, and plan-operation caveats.

9. [9] IRS ROBS compliance project

   Reviewed July 31, 2026. IRS page last reviewed November 16, 2025. Used for ROBS structure, founder concentration risk, determination-letter limit, employee access, discriminatory operation, Form 5500/Form 1120, rollover, participant, stock purchase, valuation, and recordkeeping concerns.

10. [10] IRS ROBS examination guidelines

    Reviewed July 31, 2026. IRS Employee Plans memorandum dated October 1, 2008. Used as examination context for ROBS structure, employer-stock valuation, participant access, promoter fees, and compliance review. It is exam guidance context, not current approval of any arrangement.

11. [11] 26 CFR 1.416-1

    Reviewed July 31, 2026 through the eCFR public API using the retained July 21, 2026 dated API record after current-date API checks did not return a newer section record. This archived dated API record remains the cited version. Used only for regulation details that remain consistent with current section 416, including valuation-date and account-balance mechanics in T-24, minimum-contribution details in M-10, contribution adjustments, and recordkeeping context. Current Code text controls where older regulation examples or Q&A text conflict with amended section 416. Annual CFR and Federal Register control if text differs.

12. [12] 26 CFR 1.401(k)-3

    Reviewed July 31, 2026 through the eCFR public API using the retained July 21, 2026 dated API record after current-date API checks did not return a newer section record. This archived dated API record remains the cited version. Used for safe harbor 401(k) contribution and notice boundary, without treating safe harbor status as a plan-specific result.

13. [13] 26 CFR 1.401(m)-3

    Reviewed July 31, 2026 through the eCFR public API using the retained July 21, 2026 dated API record after current-date API checks did not return a newer section record. This archived dated API record remains the cited version. Used for matching-contribution safe harbor boundary and ACP coordination.

14. [14] 26 CFR 1.410(b)-7

    Reviewed July 31, 2026 through the eCFR public API using the retained July 21, 2026 dated API record after current-date API checks did not return a newer section record. This archived dated API record remains the cited version. Used for coverage aggregation and disaggregation handoff when a top-heavy aggregation group also affects 410(b).

15. [15] IRS EPCRS overview

    Reviewed July 31, 2026. IRS page last reviewed January 29, 2026. Used for correction program lanes, internal procedures, and record-retention framing. Specific correction availability requires plan-specific analysis.

16. [16] IRS correcting plan errors

    Reviewed July 31, 2026. Used for IRS correction framing and plan-failure escalation, not for promising correction eligibility or result.

17. [17] DOL Meeting Your Fiduciary Responsibilities

    Reviewed July 31, 2026. DOL publication dated September 2021. Used for written plan, trust, fiduciary process, service-provider monitoring, records, participant contributions, reporting, and prohibited transaction controls.

18. [18] DOL Form 5500 Series

    Reviewed July 31, 2026. Used for annual Form 5500 reporting handoff and EFAST2 context. Filing choice depends on current instructions and plan facts.

19. [19] IRS Form 5500 Corner

    Reviewed July 31, 2026. Used for IRS annual return/report handoff and extension context. The article does not choose a filing form for a specific plan.

20. [20] IRS Instructions for Form 945

    Reviewed July 31, 2026. Used only for nonpayroll withholding handoff if a correction or distribution creates withholding reporting.

21. [21] IRS Instructions for Form 1120

    Reviewed July 31, 2026. Used only to distinguish C corporation income tax reporting from plan top-heavy testing.

22. [22] IRS Instructions for Forms 1099-R and 5498

    Reviewed July 31, 2026. Used only for distribution-reporting handoff when a top-heavy correction or rollover/distribution record creates reporting questions.