Cost
The Workers’ Comp Premium Audit, Explained
That surprise bill (or refund) after your policy year isn’t random — here’s exactly how the true-up works.
By Restaurant Insurance Authority Editorial Team · Reviewed by J. Robert Smith ·
You paid your workers’ comp premium all year, then a bill (or a refund) shows up after the policy ends. That’s the audit — the most misunderstood part of a restaurant’s insurance, and the easiest to get blindsided by.
A workers’ compensation premium audit is the year-end true-up: your insurer compares the payroll you estimated at renewal to what you actually paid, then bills or refunds the difference. Underestimate payroll and you owe more; overestimate and you get money back. Misclassified employees and uninsured subcontractors are the usual surprises.
Why your premium changes at audit
Your workers’ compensation premium starts as an estimate: a rate applied to the payroll you project at renewal. Payroll is rarely exact — you hire, you add shifts, sales climb — so at year-end the insurer recalculates on the real numbers. More payroll than projected means you owe; less means a refund.
What the auditor actually looks at
- Total payroll by class code — kitchen, service, and clerical staff can carry different rates.
- Overtime — often reported at straight-time wages, which lowers the base if done right.
- Subcontractors without their own coverage — an uninsured contractor’s pay can be added to your payroll.
- Owners and officers — included or excluded depending on your state and elections.
- Cash or off-book wages — auditors reconcile against tax filings, so gaps get caught.
How to avoid an audit surprise
- Estimate renewal payroll honestly — lowballing only defers the bill, it doesn’t erase it.
- Separate overtime and classify staff correctly in your payroll system all year.
- Collect and keep certificates of insurance from every subcontractor.
- Respond promptly when the audit request arrives, with clean payroll and tax records.
If your last audit stung, a licensed agent can right-size your payroll estimate and classifications before renewal. Get a quote and start the year on accurate numbers.
Frequently asked
- Why did my workers’ comp premium go up at the audit?
- Your renewal premium is an estimate based on projected payroll. At audit the insurer uses your real payroll, and if you paid more wages, hired more people, or had workers in higher-rated jobs than estimated, you owe the difference. Uninsured subcontractors can also be added to your payroll base.
- How does a workers’ comp audit work?
- After the policy year, the insurer reviews your actual payroll, employee classifications, and any subcontractor coverage — by mail, phone, or an on-site visit. They recalculate premium on real numbers and issue a bill or refund. Have payroll records, tax forms, and subcontractor certificates ready to keep it accurate.
- What if I don’t complete the workers’ comp audit?
- Don’t ignore it. Insurers that can’t complete an audit often apply an estimated or non-compliance premium — frequently a steep multiple of your policy premium — and may cancel coverage. Responding with clean payroll and subcontractor records almost always produces a lower, accurate number than the default estimate.
Sources
- Insureon: Workers’ Compensation Insuranceindustryretrieved 2026-09-11
- NEXT Insurance: Workers’ Compensation Insuranceindustryretrieved 2026-09-11
Start renewal on accurate numbers
A licensed agent can right-size your payroll estimate and worker classifications before renewal, so the audit holds no surprises.
Talk to an agent who insures food & beverage every day
A licensed commercial-lines agent who specializes in restaurants and bars will review your coverage, close the gaps that catch owners, and show you what a program actually costs — before anything is bound.