Overview
Workers' compensation premiums start with your payroll and the job classifications assigned to that payroll. Lower-risk classifications, such as clerical work, carry lower rates than higher-risk work like construction or painting. Understanding how payroll, class codes, overtime, and subcontracting affect premium is the first step to managing costs.
Key takeaways
- Premiums are based on payroll and classification codes; accuracy matters.
- Separating overtime and requiring subcontractor insurance can lower audited premiums.
- Regular audits, loss-control measures, and clear documentation reduce surprises at renewal.
How it works
Insurers multiply payroll assigned to each classification by the corresponding rate to produce the premium for that class. An overall premium is the sum across all classes plus any adjustments, such as experience modification.
Audits reconcile estimated payroll to actual payroll and can change premiums retroactively; auditors will also look for uninsured subcontractors and include that payroll if certificates are missing.
Overtime payroll can sometimes be discounted if it's tracked separately and documented, reducing the portion subject to the full rate.
What it may cover (and what it may not)
Workers' compensation covers medical costs and lost wages for work-related injuries and illnesses, and it factors into premium calculations through claims frequency and severity.
It does not cover general liability exposures or losses tied to independent contractors who maintain their own insurance, so verifying subcontractor coverage is important.
For specialized industries or risk-retention arrangements, consider tailored options such as Self-Insured Workers' Compensation — Excess & Surplus (E&S) when standard markets are not the best fit.
Common mistakes to avoid
Misclassifying employees or failing to update class codes as job duties change can increase premium and trigger audit adjustments.
Not keeping a centralized file of subcontractor certificates often leads auditors to add that payroll back on the audit, increasing premium.
Ignoring high-risk activities that could be outsourced or controlled—such as specialized painting or transportation—can expose your organization to larger claims that drive up the experience modification.
Questions to ask an agent
Ask how your payroll is categorized and how often class codes should be reviewed to reflect changing job duties.
Ask whether separating overtime or maintaining dedicated payroll records could reduce premium and how auditors view subcontractor documentation.
For industry-specific guidance, your agent can point you to resources such as Pest Control Workers' Compensation or options for recovering premium exposure like Workers' Compensation Premium Recovery.
Next steps
Compile and maintain a current file of payroll records, class-code descriptions, overtime breakdowns, and subcontractor certificates to streamline audits and reduce added premium risk.
Perform a periodic internal review of job descriptions and operations to confirm correct classifications and identify opportunities to transfer high-risk tasks to insured subcontractors.
If you need formal pricing or to review coverage options, schedule time to talk to your agent and bring your payroll and subcontractor documentation to the discussion.
Frequently Asked Questions
How often should I review employee class codes?
Review class codes at least every three years or sooner when duties or processes change to ensure accurate premium allocation.
Will subcontractor certificates really affect my premium?
Yes—auditors add payroll for subcontractors lacking valid certificates, which can increase your audited premium.
Can separating overtime payroll lower my premium?
Possibly—if overtime is tracked separately and qualifies for a discount during audit, it can reduce the payroll subject to full rates.
What documentation should I keep for audits?
Keep payroll registers, job descriptions, overtime records, and a current file of subcontractor certificates to present during audits.