Many owners who operate their multiple Culver’s locations under separate LLCs assume each entity stands alone for compliance purposes. That assumption can catch a growing operation off guard. When it comes to retirement plan obligations, businesses under common ownership are reviewed together rather than on a location-by-location basis.
Before your next location agreement is signed, it helps to understand the thresholds that trigger an employee benefit plan audit and how your combined headcount across entities factors into the picture.
When Does a 401(k) Plan Require an Audit?
A 401(k) plan typically requires an independent audit when it files as a “large plan” on its annual Form 5500. Regulators review your participant count on the first day of the plan year to determine your filing status.
This threshold doesn’t count your total payroll. It only looks at individuals who hold an active account balance in the plan. Workers who are eligible but have never contributed a dollar don’t count toward this number.
Who counts toward your total:
- Active employees who are enrolled and hold a plan balance.
- Former employees who left without rolling over or withdrawing their savings.
- Plan borrowers who hold an outstanding loan against their account.
- Plan beneficiaries who are currently drawing benefits from the plan.
Who falls outside that group:
- Eligible staff who never made a plan contribution.
- Account holders who sit at a zero balance.
Former workers with lingering balances deserve close attention. In a multi-unit operation with several locations, this group can grow quickly if it isn’t reviewed regularly. Including an automatic cash-out provision in your plan document is the most practical way to keep this participant count down.
How Does the IRS Count Employees Across Multiple LLCs?
This is where many multi-unit owners get caught off guard. If you hold ownership across several businesses, the IRS doesn’t look at each LLC separately for retirement plan rules. Instead, businesses under common ownership are grouped and treated as a single employer. This prevents owners from dividing a large workforce across separate entities to bypass compliance rules.
Because of this grouping, your total participant count is calculated across your entire portfolio rather than location by location.
For example, picture an owner running four locations, each with 32 participants who hold account balances. No single restaurant looks close to triggering a review on its own. However, when combined, the owner has 128 participants. This total immediately places the plan in large-plan territory, triggering a mandatory 401(k) audit.
What Is the 80-120 Rule for 401(k) Plans?
There is a transitional provision, known as the 80-120 Participant Rule, that gives growing plans some breathing room as headcount nears the 100-participant mark. If a plan filed as a small plan the previous year, it can generally continue filing that way as long as the participant count stays under 121 at the start of the next plan year.
This rule prevents a growing operation from flipping between large and small plan status due to minor, temporary year-to-year staffing shifts.
Here is what that looks like in practice:
- An owner has 95 participants and filed small the prior year, then grows to 108. Filing small is still allowed, and no audit is required yet.
- That same owner reaches 121 participants. The audit requirement now applies, regardless of how the plan filed in prior years.
This window works best as a head start rather than a final deadline. Owners who bring their CPA into the conversation before the count nears 120 tend to experience a far smoother path through their first audit than those who wait until they have already crossed the threshold.
What Should Owners Review Before Opening a New Location?
With the 401(k) 100-participant threshold and entity grouping rules in mind, expansion planning takes on a different dimension. Adding a location changes your compliance picture in ways that don’t always show up right away. A few areas worth reviewing before your next agreement is signed include:
- Reviewing combined headcount totals across every entity you own, rather than tracking them location by location.
- Checking former staff documentation regarding balances sitting in the plan, as regular cash-out provisions help keep that number from creeping up unnoticed.
- Confirming that every legal entity within your organization is properly included in your 401(k) plan, since correcting omissions becomes more complex and costly the longer they go unaddressed.
- Planning audit timeline logistics for your first review, given that a first-year employee benefit plan audit requires more setup time than subsequent audits.
Why Does a 401(k) Audit Matter for Growing Owners?
A 401(k) audit is not a sign that something went wrong. For an owner whose operation has reached a certain scale, an audit is simply a normal part of administrative compliance. The review examines whether the plan operates exactly as written, whether employee contributions are processed on time, and whether participant accounts match your payroll records.
The real challenge is learning about the audit requirement after the deadline has passed or discovering too late that your combined headcount across locations has exceeded the threshold. Staying ahead of 401(k) audit requirements means bringing your CPA into the conversation before your next expansion agreement is signed, which keeps the 401(k) audit on your radar from day one, rather than letting it become an unexpected hurdle down the road.
How I Work with Multi-Entity Culver’s Franchise Owners
I work with owners who operate multiple Culver’s locations under separate LLCs, helping them assess retirement plan compliance across the entire group rather than on a per-entity basis. That means reviewing participant counts as new locations come on board, checking plan documents for gaps across entities, and bringing the right people into the conversation before an audit requirement arrives unannounced.
Your restaurants matter to the communities they serve, and the financial side of that growth deserves equal attention. If you are weighing your next location or simply want a clearer picture of your combined headcount, a conversation with our team can help you see where things stand today.