Workers’ CompOhio

Ohio workers' comp cost calculator

Pick your industry, monthly payroll and claims history to see an illustrative monthly workers' compensation cost guide for an Ohio business. Ohio Bureau of Workers’ Compensation base rates effective July 1, 2026.

It's an illustrative estimate, not a quote. Real premiums depend on your exact classification codes, experience modification, insurer, underwriting and safety record.

Estimate by industry

How the estimate is built

Uses Ohio BWC Appendix A base rates per $100 of payroll. The published base rates do not include DWRF or additional DWRF assessments, so the calculator is not a full Ohio premium calculation. Pool cleaning uses janitorial class 9014 as the closest cleaning-services proxy. Carpentry and concrete use equal-weight blends.