Understanding Workers Comp Premium Audits

Workers compensation premium audits are a routine part of carrying a workers comp policy. At the end of each policy period, your insurance carrier will audit your payroll records to determine whether you owe additional premium or are entitled to a refund. Understanding this process helps you avoid surprises and potential overcharges.

How Premium Audits Work

When you purchase a workers compensation policy, your premium is based on estimated payroll for the upcoming policy period. At the end of the period, the insurer conducts an audit to compare your estimated payroll to your actual payroll. The audit determines your final premium based on what you actually paid employees.

The audit process typically involves:

• A review of your payroll records, tax returns, and certificates of insurance for subcontractors
• Verification of employee job classifications
• Calculation of actual premium based on real payroll figures
• Issuance of an adjusted premium, which may result in an additional charge or a refund

Types of Audits

Insurance carriers conduct audits in several ways:

• Physical audits: An auditor visits your workplace to review records in person
• Voluntary audits: You complete audit forms and submit documentation by mail or online
• Telephone audits: An auditor reviews your records over the phone

Larger policies or those with complex classifications are more likely to receive a physical audit.

Preparing for the Audit

Good preparation makes the audit process smoother and helps ensure accuracy:

• Maintain organized payroll records throughout the policy period
• Keep your general ledger, tax filings (941s), and state unemployment reports accessible
• Have certificates of insurance on file for all subcontractors
• Separate payroll by job classification if employees perform multiple types of work
• Track overtime pay separately, since workers comp premiums are typically calculated on straight-time wages only
• Maintain records of any employee payments that may be excluded from the audit, such as group insurance or retirement contributions

Common Issues and Disputes

Several issues commonly arise during premium audits:

• Misclassification of employees: Employees placed in a higher-risk classification than their actual duties warrant will inflate your premium
• Subcontractor issues: If a subcontractor lacks their own workers comp coverage, their payroll may be added to your policy
• Overtime calculation errors: Overtime premium pay should be excluded; only the straight-time portion of overtime hours counts
• Excluded payments: Certain types of compensation may be excludable depending on your state's rules

If you disagree with audit results, you have the right to dispute them. Contact your agent or carrier to initiate the dispute process, and provide supporting documentation for your position.

Reducing Audit Surprises

To minimize unexpected audit adjustments:

• Estimate your payroll as accurately as possible when the policy begins
• Report payroll changes to your agent mid-policy if your workforce grows or shrinks significantly
• Ensure all subcontractors carry their own workers comp coverage and provide current certificates
• Review your experience modification rate annually and address any errors in your loss history