Direct Answer: Offer the Plan When the Document and Law Say the Employee Entered
After capitalization, a ROBS 401(k) remains governed by the written plan, federal qualification rules, fiduciary duties, and C corporation sponsor records.
If an employee is a common-law employee or otherwise counted for plan rules, satisfies the written eligibility conditions, is not properly excluded, and reaches the applicable entry date, the sponsor should offer the 401(k) election opportunity before compensation for the affected period is paid. IRS ROBS guidance flags arrangements that appear to benefit one individual, block employees from participating, or prevent other participants from buying employer stock after the founder's rollover.[1][3][4][6]
The correct answer may still be no for a specific person today if the person has not met service, remains in a lawful excluded class, works for a nonparticipating employer after related-employer review, or is being tested only for an employer contribution that has a separate allocation condition. The file should show that reasoning from the document and sources, not from convenience.[10][11][12][16]
Key Terms Before the Offer Decision
How to Decide Whether the Employee Must Be Offered Deferrals
A defensible answer follows the employee from the census to the pay date. Work through these steps before responding to an employee, auditor, provider, lender, or buyer.
Who Owns Each Handoff
The sponsor can hire help, but an employee-offer failure often starts when payroll, the recordkeeper, and the administrator each assume someone else made the eligibility call.
The Written-Plan-First Rule
DOL describes a written plan as a key element that guides day-to-day operations, and IRS qualified-plan guidance says a plan must contain required language and be operated according to its provisions. In a ROBS business, that means no verbal founder-only rule, provider marketing sentence, or payroll default can override the signed plan and lawful limits.[4][20]
The sponsor should read the adoption agreement, basic plan document, amendments, SPD, safe harbor notice if any, automatic enrollment provisions if any, and employer-stock provisions before communicating eligibility. More generous terms control when the document is more generous than the statutory maximums.[3][5][20][23]
Age, Service and Entry Dates
IRS participant guidance states that employees generally must be in the qualified plan if they are at least age 21 and have at least one year of service, and the employer must follow less restrictive plan terms when the document is more generous. IRS 401(k) qualification guidance adds that elective deferral participation cannot be delayed beyond one year of service, while a traditional 401(k) may use two years for employer contributions only with the stated full-vesting condition.[3][4][14]
Entry date is a separate clock. IRS Fix-It guidance states eligible employees must enter within six months after satisfying plan eligibility requirements and must be given the opportunity to make a salary deferral election. A plan with monthly or quarterly entry may require action before the statutory outside date.[5][6][10]
Eligibility Classes and Permissible Exclusion Boundaries
Collectively bargained employees, certain nonresident aliens, nonparticipating employer employees, leased employees, interns, temporary employees, and seasonal workers require exact document and legal review. Some exclusions are statutory or regulatory. Others are plan-design classes that can fail if they are really service-based exclusions or if they distort coverage, nondiscrimination, or benefits, rights, and features.[11][12][16][17]
A ROBS sponsor should write the exclusion reason in the census. If the reason is "part time," "contractor," "not in the plan," or "provider said no" without source support, the file is not ready.[6][12][19]
Part-Time, Seasonal, Hours-of-Service, Elapsed-Time and LTPT Distinctions
The hours method commonly looks for a 1,000-hour year of service in a 12-month period. Elapsed time measures service by employment periods rather than the same hour-counting method. LTPT rules require a separate 500-hour consecutive-year tracker for elective deferral access. IRS materials describe three 500-hour years with possible January 1, 2024 calendar-year entry under the SECURE Act, and SECURE 2.0 reduces that condition to two years beginning in 2025.[6][8][9][15]
Do not turn LTPT access into a universal employer contribution promise. LTPT rules mainly address deferral access, while employer contributions, vesting, and nondiscrimination still depend on the plan and current rules.[8][9][11]
Rehired, Transferred and Acquired Employee Caveats
Rehires, transfers between related entities, asset acquisitions, stock acquisitions, leased-worker conversions, and payroll-provider changes can import prior service, related-employer facts, or census gaps. Official sources support the need to review leased employees and related employers, but this page does not decide successor-plan, acquisition, or controlled-group outcomes for any deal.[4][12][19]
Use the hiring page for onboarding and the eligibility page for deeper service-crediting. For this decision, the important point is that an offer answer should not be given until those event facts are in the census.[6][12]
Elective Deferrals Versus Employer Contributions, Vesting and Employer Stock
The first employee right to protect is the elective deferral opportunity. A missed election is different from a missed match, nonelective allocation, profit-sharing allocation, vesting credit, or investment feature. IRS Fix-It guidance treats exclusion from elective deferrals as a specific failure with correction analysis.[6][18]
Employer stock requires extra caution. DOL says 401(k), profit-sharing, and ESOP-style individual account plans may hold employer securities if plan documents provide, and that employer-stock decisions require information and monitoring. IRS ROBS guidance flags amendments that block employees from buying stock and problems with coverage, discrimination, and benefits, rights, and features.[1][17][20]
Notices, Elections and Payroll Readiness
An offer is not complete if payroll cannot execute it. Before the entry date, the employee should receive the required plan information and election mechanism. DOL materials identify SPD information about eligibility, contributions, vesting, claims, and rights. Automatic enrollment adds its own notice and default investment information when the plan uses it.[20][21][22][23]
Payroll should be ready to process affirmative deferrals, zero elections, opt-outs, automatic enrollment, match calculations, loan repayments, contribution remittance, and recordkeeper files. DOL participant-contribution timing guidance requires salary reductions to be deposited as soon as reasonably segregable, with a small-plan safe harbor for deposits no later than the seventh business day after withholding.[20]
Coverage, ADP, ACP, Top-Heavy and Employer-Stock Consequences
A correct offer can still fail later testing if the plan design or operation favors highly compensated or key employees. IRS qualification guidance identifies nondiscrimination, ADP, ACP, contribution limits, vesting, and top-heavy rules. Top-heavy status can require minimum contributions and accelerated vesting unless an exception applies.[4][11][13][18]
Safe harbor designs can reduce ADP or ACP exposure only when the document, notices, contributions, and timing are satisfied. This page does not state that any ROBS plan is safe harbor, exempt from testing, or qualified because a provider says so.[4][23]
Missed-Opportunity Detection, EPCRS Boundaries and Amendments
Detection starts with the IRS Fix-It Guide: review eligibility provisions, list W-2 employees, compare birth dates, hire dates, termination dates, hours, compensation, and entry dates, then inspect payroll and plan records. Correction may require QNECs, missed match or employer contributions, earnings, notices, SCP, VCP, or Audit CAP review, but no article can promise the lane or result for a specific ROBS plan.[6][7]
Prospective amendments belong on a separate track. DOL says amending a plan is generally a business decision, but implementing it can be fiduciary conduct. IRS ROBS guidance warns that amendments blocking employees after a determination letter may violate qualification rules. An amendment should not be used to retroactively erase an employee's already-earned entry or allocation right.[1][20]
Seven Reproducible Timelines and Arithmetic Checks
Each scenario is bounded. It illustrates review mechanics, not an eligibility promise.
Practical Checks Before You Answer an Employee
Before the company tells a worker yes or no, the file should show how the answer was reached. These checks are intentionally practical because most mistakes are census, document, or payroll handoff mistakes.
- 1. Open one census row for every paid or service-providing person.[6][12][19]
- 2. Identify the employer, related employers, leased employees, and participating employers.[4][12][19]
- 3. Read the current signed plan document, adoption agreement, amendments, SPD, and service agreement.[4][20][21]
- 4. Test elective deferral eligibility separately from employer contributions and employer-stock features.[4][17][18]
- 5. Run age, service, elapsed-time, LTPT, entry-date, class, and statutory-exclusion checks before each entry date.[8][9][14][15][16]
- 6. Send SPD, election, beneficiary, investment, safe harbor, or automatic-enrollment materials before they affect pay.[20][21][22][23]
- 7. Confirm payroll can start deferrals, opt-outs, automatic enrollment, matches, and loan repayments on the right date.[6][18][20]
- 8. Run coverage, ADP, ACP, top-heavy, allocation, vesting, and benefits-rights-features review after census close.[4][13][17][18]
- 9. Escalate missed deferral opportunities, related-employer facts, prohibited-transaction issues, stale valuations, and amendments before year-end cleanup.[1][6][7][12][20]
- 10. Do not retroactively exclude employees who already earned a right under the written plan.[1][4][6][20]
Useful Next Steps
If the offer question leads to a broader issue, use the related guide that matches the next decision. This keeps the employee-offer answer focused while still giving owners a path into eligibility, hiring, annual administration, filings, valuation, prohibited transactions, audits, setup, cost, and tax consequences.
Frequently Asked Questions
These questions address the places where ROBS owners most often confuse a deferral election, an employer contribution, and employer-stock access.
Must every ROBS business employee be offered the 401(k)?
The controlling eligibility rule starts with each common-law employee tested under the written plan and federal limits. If the employee satisfies the document's lawful eligibility and entry rules for elective deferrals, the employee needs a real election opportunity before affected compensation is paid.[3][4][6][10][18]
Can the owner keep the ROBS 401(k) founder-only after hiring staff?
A founder-only operating assumption becomes dangerous after hiring. IRS specifically flags ROBS arrangements that appear to benefit one individual, fail to make benefits effectively available to employees, or amend the plan to prevent other employees from participating or buying employer stock after the founder's rollover.[1][17]
Does the ROBS provider decide who gets offered the plan?
A provider can draft documents, run administration, or help with notices, while eligibility starts with the written plan, the employee census, and current qualification rules. The sponsor remains responsible for operating the plan according to its terms.[4][6][20][24]
What is the latest ordinary 401(k) deferral eligibility rule?
For ordinary elective-deferral access, a 401(k) generally cannot require more than age 21 and one year of service. The plan may be more generous, and the entry date must also be checked. A separate two-year condition may apply only to employer contributions if the applicable full-vesting condition and other rules are satisfied.[3][4][10][14]
Do part-time, seasonal, and temporary employees count?
Labels do not end the review. Track hours, service, class terms, and LTPT years. Part-time employees may satisfy a 1,000-hour year of service, elapsed-time service, or LTPT deferral-access rules even if employer-contribution allocation is different.[6][8][9][15]
Does an eligible employee have to receive employer stock?
Employer-stock rights depend on plan terms, contribution source, investment design, valuation support, and nondiscrimination review. Elective deferrals, employer contributions, allocation conditions, vesting, participant-directed investments, and employer-stock rights are separate features. Because IRS flags ROBS amendments and operations that restrict employee stock access, any founder-only employer-stock result needs document, valuation, prohibited-transaction, coverage, and benefits-rights-features review.[1][2][17][20]
Can a plan amendment exclude employees after they are hired?
A prospective amendment may change future plan design only if adopted and operated lawfully. It cannot retroactively erase an already-earned election opportunity or allocation right, and IRS specifically warns that ROBS amendments preventing employees from participating after a determination letter may violate qualification requirements.[1][4][6][20]
Do controlled-group or affiliated-service-group employees matter?
Yes. Related employers can require aggregation for qualified-plan rules. A ROBS C corporation should not limit the census to its easiest payroll export until ownership, service relationships, leased employees, and related-entity facts are reviewed.[12][19]
What happens if an eligible employee was not offered deferrals?
The file should stop routine processing, identify affected employees and compensation, review plan terms, determine the missed deferral opportunity, add any missed matching or employer contribution analysis, and evaluate EPCRS or other correction paths. This article does not promise SCP, VCP, Audit CAP, or a particular QNEC percentage for any case.[6][7]
Are safe harbor and automatic enrollment plans simpler?
They can change testing and notice mechanics, but they are not shortcuts around written terms. Safe harbor contributions and automatic enrollment require the plan language, required notices, payroll setup, and contribution timing to be operated correctly.[4][20][23]
Can payroll handle all employee-offer duties?
Payroll and plan-administration records must be reconciled. Payroll supplies pay dates, compensation, hours, deferrals, and deposits, while the plan administrator, recordkeeper, fiduciary, TPA, CPA, and adviser have separate handoffs for eligibility, notices, testing, Form 5500, corrections, and employer-stock controls.[6][20][22][24]
How often should the sponsor check who must be offered the plan?
At least before each entry date and after each payroll import. Monthly census reconciliation is a practical control for small ROBS plans because new hires, rehires, terminations, class changes, hours, and LTPT years can change the answer before year-end administration.[4][6][20]
Official Sources and Review Boundaries
Sources were reopened July 31, 2026. Official IRS, DOL, GovInfo CFR, and U.S. Code sources are used as authority. The IRS ROBS examination guidelines are disclosed as an older official memorandum and used only for issue spotting. U.S. Code pages, GovInfo annual CFR editions, the LSA, and Federal Register updates should be verified for the operative date of an actual plan event. No source cited here approves a specific ROBS arrangement, plan term, employee classification, exclusion, correction, amendment, valuation, employer-stock transaction, qualification outcome, or agency acceptance.
- [1] IRS: Rollovers as Business Start-Ups Compliance Project
Reopened July 31, 2026; previously read July 25, 2026. Page last reviewed or updated November 16, 2025. Used for the ROBS structure, plan-owned C corporation stock, determination-letter limits, employee-access concerns, coverage and discrimination concerns, amendments blocking stock, Form 5500 and Form 1120 concerns, valuation, promoter fees, business-failure findings, and disqualification warning.
- [2] IRS: ROBS Examination Guidelines
Reopened July 31, 2026. Official IRS Employee Plans memorandum dated October 1, 2008. Used only for examination issue spotting around employer securities, valuation, rollover, prohibited transactions, plan qualification, coverage, and nondiscrimination. It is older guidance, so current statutes, regulations, and IRS pages control where they differ.
- [3] IRS: Retirement Topics, Eligibility and Participation
Reopened July 31, 2026; previously read July 25, 2026. Page last reviewed or updated May 31, 2026. Used for age 21, one year of service, following the plan document, more generous plan terms, and SPD review.
- [4] IRS: 401(k) Plan Qualification Requirements
Reopened July 31, 2026; previously read July 25, 2026. Used for written plan operation, exclusive benefit, nondiscrimination, elective deferral access after no more than one year of service, two-year employer-contribution condition with full vesting, ADP, ACP, safe harbor framing, top-heavy, leased employees, and distribution boundaries.
- [5] IRS: A Guide to Common Qualified Plan Requirements
Reopened July 31, 2026. Official IRS plan-sponsor source used for plan-document operation, entry-date timing, coverage, nondiscrimination, vesting, top-heavy, and correction framing.
- [6] IRS: 401(k) Fix-It Guide, eligible employees excluded
Reopened July 31, 2026; previously read July 25, 2026. Page last reviewed or updated November 16, 2025. Used for reviewing plan terms, W-2 employee lists, birth dates, hire dates, hours, compensation, entry dates, missed deferral opportunity, QNEC concepts, 50 percent, 25 percent, three-month, 45-day notice, and correction program boundaries.
- [7] IRS: EPCRS Overview
Reopened July 31, 2026; page last reviewed or updated July 31, 2026. Official IRS overview used to identify SCP, VCP, and Audit CAP as correction lanes. It is not used to promise that a specific ROBS failure qualifies for any correction program.
- [8] IRS: Employee Plans News
Reopened July 31, 2026. Official IRS employee plans news source used for SECURE Act long-term part-time 401(k) deferral access, the three consecutive 500-hour periods, January 1, 2024 calendar-year example, and SECURE 2.0 two-year reduction beginning in 2025.
- [9] IRS: IRB 2024-43
Reopened July 31, 2026. Official IRS bulletin used for final 401(k) LTPT regulation applicability no earlier than plan years beginning January 1, 2026 and LTPT vesting-service discussion.
- [10] IRC section 410
Reopened July 31, 2026; Official U.S. Code source for minimum participation, age, service, and entry-date rules. OLRC currentness should be verified for transaction-date advice.
- [11] IRC section 401
Reopened July 31, 2026; Official U.S. Code source for qualified-plan requirements, nondiscrimination, cash or deferred arrangements, vesting, and LTPT statutory language. OLRC currentness should be verified for transaction-date advice.
- [12] IRC section 414
Reopened July 31, 2026; Official U.S. Code source for related employer, controlled group, affiliated service group, leased employee, compensation, and service-crediting concepts. OLRC currentness should be verified for transaction-date advice.
- [13] IRC section 416
Reopened July 31, 2026; Official U.S. Code source for top-heavy key-employee concepts and minimum contribution framing. OLRC currentness should be verified for transaction-date advice.
- [14] GovInfo CFR 2025 Title 26 Volume 7: 26 CFR 1.410(a)-3 and 1.410(a)-4
Reopened July 31, 2026; previously read July 25, 2026. Official CFR annual edition revised as of April 1, 2025. Used for 26 CFR 1.410(a)-3 minimum age and service conditions and 26 CFR 1.410(a)-4 maximum age conditions and time-of-participation rules, including the earlier of first plan year or six months entry-date framework. The annual CFR directs users to check the LSA and Federal Register for changes after April 1, 2025.
- [15] GovInfo CFR 2025 Title 26 Volume 7: 26 CFR 1.410(a)-7
Reopened July 31, 2026; previously read July 25, 2026. Official CFR annual XML revised as of April 1, 2025. Used for elapsed-time service concepts, periods of service, severance dates, reemployment concepts, service spanning, and elapsed-time entry-date mechanics.
- [16] GovInfo CFR 2025 Title 26 Volume 7: 26 CFR 1.410(b)-6
Reopened July 31, 2026; previously read July 25, 2026. Official CFR annual XML revised as of April 1, 2025. Used for excludable-employee categories and coverage-testing exclusions, including minimum age and service, collectively bargained employees, certain nonresident aliens, and certain terminating employees where conditions are met.
- [17] GovInfo CFR 2025 Title 26 Volume 6: 26 CFR 1.401(a)(4)-4
Reopened July 31, 2026; previously read July 25, 2026. Official CFR annual edition revised as of April 1, 2025. Used for benefits, rights, and features nondiscrimination, including employer-stock feature boundaries. The annual CFR directs users to check the LSA and Federal Register for changes after April 1, 2025.
- [18] GovInfo CFR 2025 Title 26 Volume 6: 26 CFR 1.401(k)-1
Reopened July 31, 2026; previously read July 25, 2026. Official CFR annual edition revised as of April 1, 2025. Used for cash or deferred arrangement operation, elective deferral election concepts, and ADP testing framing. The annual CFR directs users to check the LSA and Federal Register for changes after April 1, 2025.
- [19] IRS: Chapter 7, Controlled and Affiliated Service Groups
Reopened July 31, 2026. Official IRS training material used for related-employer aggregation issue spotting under sections 414(b), 414(c), and 414(m). It is training material, not a private ruling for any ownership chart.
- [20] DOL EBSA: Meeting Your Fiduciary Responsibilities
Reopened July 31, 2026; previously read July 25, 2026. September 2021 booklet. Used for written plan, trust, recordkeeping, participant documents, fiduciary status by function, plan documents, participant contribution timing, SPD contents, automatic enrollment notice, service-provider monitoring, employer-stock cautions, prohibited transactions, and Form 5500 reporting.
- [21] DOL EBSA: What You Should Know About Your Retirement Plan
Reopened July 31, 2026. Official DOL participant source used for SPD, eligibility information, participant notices, account information, and rights framing.
- [22] DOL EBSA: Reporting and Disclosure Guide
Reopened July 31, 2026. December 2022 guide used for SPD, SMM, SAR, benefit-statement, and participant-disclosure timing controls.
- [23] DOL EBSA: Automatic Enrollment 401(k) Plans for Small Businesses
Reopened July 31, 2026. Official DOL source used only for automatic-enrollment notice and eligible-employee information concepts when the written plan uses automatic enrollment.
- [24] IRS: Operating a 401(k) Plan
Reopened July 31, 2026; page last reviewed or updated July 31, 2026. Official IRS operational hub used for plan administration, contributions, vesting, testing, disclosure, reporting, and correction handoffs.