Workers' Comp Audit? Get Ready Now.

Quick answer: A workers' comp audit checks the payroll you actually ran against the estimate your premium was based on. To get ready, pull a full payroll report by employee and job duty, separate overtime, gather certificates of insurance for every subcontractor, and keep your quarterly tax filings handy. Clean records now mean fewer surprises later.

What is a workers' comp audit?

Your workers' comp premium starts as an estimate. Youguessed your payroll for the year, by type of work, and the premium was builton that guess. After the policy term ends, the insurance company checks whatreally happened. That check is the premium audit.

If you ran more payroll than estimated, you may owe more. Ifyou ran less, you may get money back. Either way, the audit goes faster whenyour records are ready.

When does the audit happen?

Usually after your policy term ends. Timing varies by carrier and state, but audits are often completed within a few months of expiration (State Farm says most finish within 75 days; Marsh cites roughly three to six months). Many (but not all) small business policies are renewed around January 1, so audit requests often arrive early in the new year, though renewal dates vary. The auditor may call, email or mail a form, or visit in person, depending on the size of the policy and the state (Travelers; Utica National). Your records should cover the full policy period.

What records will the auditor ask for?

This is the checklist. Pull it together now, while the year is fresh.

1. Payroll report for the full policy period. Every employee, including anyone who left. List name, job duty, state worked in and total gross wages.
2. Overtime broken out. Show regular pay and overtime separately for each person (more on why below).
3. Quarterly payroll tax filings. Usually your federal Form 941s and state unemployment reports for the term.
4. Subcontractor records. Names, the work they did, dates, amounts paid, and a certificate of insurance showing workers' comp for the time they worked for you.
5. Job duties for each worker. A short description of what each person really does. Workers' comp rates depend on the type of work.
6. Changes during the year. New locations, new  types of work, new states or a change in ownership. Tell your agent about these too.

 
Keep it all in one folder, whether that's digital or paper.You'll thank yourself later.

Why does overtime matter in an audit?

In most states, only part of overtime pay counts toward your workers' comp premium. With time and a half, the extra half is usually left out. That only works if overtime is recorded separately. If your payroll lumps everything into one number, you could pay premium on wages you don't owe it on.

The fix is simple. Track regular and overtime hours separately, every pay period. Hourly's time tracking and payroll do this automatically.

What about subcontractors?

If you pay subcontractors who don't carry their own workers' comp, the auditor may count those payments as your payroll and charge premium on them. Collect a current certificate of insurance before a sub starts work, and check that it covers the dates they worked for you. Keep contracts and in voices that split labor from materials.

What causes audit surprises?

Most surprises come from a few gaps:

• Hiring more than you estimated. A good year can mean a bigger bill at audit.
• Wrong job duties. A worker estimated as office staff who spends time in the field.
• Overtime not broken out.
• Missing sub certificates.
• Records that don't match the policy dates.

None of these are hard to fix. They just need attentionbefore the auditor asks.

How does pay-as-you-go workers' comp help?

With pay-as-you-go workers' comp, your premium is based onthe payroll you actually run, each pay period, instead of a once-a-year guess.When payroll goes up, premium follows. When it slows down in the off season,premium follows that too.

Hourly connects payroll, time tracking and workers' comp inone app. Your premium is built on real-time wage data, so the gap betweenestimate and actual stays small. Audits are still part of the policy, but they become a non-event instead of a surprise

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Frequently asked questions

How long does a workers' comp audit take? It depends on the size of your business and how ready your records are. Many small business audits are done by phone, email or a mailed form. Organized records make it faster.

What happens if I don't respond to an audit? The insurance company may estimate your payroll on its own, which can raise your premium, and your policy could be affected. Respond by the deadline and ask for more time if you need it.

Does overtime count in a workers' comp audit? In most states, the overtime premium portion (the extra half in time and a half) is excluded, but only if overtime is recorded separately. Rules vary by state.

How far back can an audit go? Audits usually coveryour most recent policy term, but some can look further back. Read our guide onhow far back an insurancecompany can audit you.

Can pay-as-you-go workers' comp help with audits? Yes.Because premium follows your real payroll during the year, there is usuallyless to reconcile at the end. Results depend on your policy and carrier.

Less paperwork. Fewer surprises.

Run payroll, track every hour and stay covered, all in one place. Try Hourly or book a demo to see how pay-as-you-go workers' comp works for your crew.

Coverage is subject to policy terms, conditions andexclusions and may not be available in all states. This article is generalinformation as of 2026, not tax or legal advice.

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