Why Am I Getting a Workers Comp Audit?
Published: September 23, 2026
If you’re getting a workers’ comp audit, it’s because your insurer needs to verify your payroll, job classifications, and business operations to ensure your policy was priced accurately. This is a standard process — not a sign of suspicion or wrongdoing.
What Is a Workers’ Comp Audit?
A workers’ comp audit checks the details used to calculate your premium. When you buy a policy, you estimate your annual payroll and job types. The audit compares those estimates to actual numbers after the policy period ends.
If your actual payroll was higher than expected — or if employees were doing riskier work than reported — your final premium may go up. The reverse is also true: you could get a refund if you overestimated.
Why Do Employers Get Audits?
Insurers use audits to ensure fairness and accuracy. Workers’ comp premiums are based on risk, and risk depends on:
- Total payroll
- Employee job duties (class code)
- Location of work
- Subcontractor usage
Since these can change during the year, audits keep premiums aligned with real exposure.
When Do Audits Happen?
Audits typically occur within 60 to 90 days after your policy ends. You’ll receive a notice by mail or email asking you to provide records. Some insurers offer phone, video, or in-person audits — many now allow online submission.
Even if you canceled your policy mid-year, you may still get an audit for the time it was active.
What Documents Are Needed?
To complete your audit, gather:
- General ledger and payroll records
- IRS Form 941, 1099s, or 1096/1099-MISC (for subcontractors)
- Employee job descriptions and work locations
- Certified payroll (if in construction)
- Lease agreements (for leased employees or equipment)
Accurate records make the process faster and help prevent disputes.
Common Audit Mistakes That Cost Employers
Small errors can lead to big premium adjustments. Watch out for:
- Misclassifying employees: Assigning a low-risk class code (like office worker) to someone doing physical labor (like warehouse work) can trigger a large back bill.
- Not reporting all payroll: Overtime, bonuses, and cash payments must be included.
- Overlooking subcontractors: If they’re not properly insured, their work may be added to your payroll.
- Failing to update job duties: Employees who take on new roles during the year may fall under a different class code.
These issues don’t mean you did anything wrong — but they do affect your premium.
Types of Workers’ Comp Audits
There are three main types:
- Physical audit: An auditor visits your office. Common for large or complex businesses.
- Phone or video audit: You walk through records over a call or screen share.
- Mail/email audit: You submit documents online or by email. Most common for small businesses.
The method depends on your insurer and policy size — not on suspicion.
Can I Avoid a Workers’ Comp Audit?
Not completely — audits are standard. But you can reduce surprises:
- Track payroll and job duties monthly.
- Update your broker when you hire, reassign, or contract out work.
- Use correct class codes — ask your agent if unsure.
- Verify subcontractors have their own workers’ comp (get certificates).
Some insurers offer pay-as-you-go policies that adjust premiums in real time using actual payroll data — eliminating the final audit. Ask your agent at The Workers’ Comp Experts if this fits your business.
What Happens After the Audit?
Once the audit is complete, the insurer calculates your final premium. You’ll receive an audit result letter showing:
- Original estimated premium
- Adjusted premium based on actual data
- Balance due or refund
If you disagree, you can appeal with supporting documents. Work with your agent to resolve issues — our team can help review audit findings.
FAQs About Workers’ Comp Audits
Why did I get audited but not last year?
Some insurers audit every policy; others use sampling. A prior exemption doesn’t guarantee future ones.
Do I need an audit if I have no employees?
If you waived coverage as a sole owner and had no payroll, you may not need one — but confirm with your agent. Some states require a ghost policy (minimal coverage for owner-only firms), which still gets audited.
Can an audit affect my E-Mod?
Yes. The E-Mod (Experience Modification Factor) reflects your claims history and premium size. A large audit adjustment can impact future E-Mods, which influence your rates.
What if I can’t find my records?
Contact your auditor ASAP. They may accept estimates, but insurers can use industry averages — which often lead to higher premiums.
Do payroll services handle the audit?
Not always. Third-party payroll providers report gross wages but not job duties or locations. You’re still responsible for supplying full audit details.
Get a free policy review — call 859-407-4888 or request a quote.