How this estimate works
Workers' compensation premiums are calculated from payroll: a rate per $100 of payroll for each job classification, adjusted for the state and the employer's own claims experience. This calculator uses Oregon's biennial national study, the 2024 Workers' Compensation Premium Rate Ranking published by the Oregon Department of Consumer and Business Services in June 2025. The study converts each jurisdiction's rates for 50-plus common classes into manual rates that include insurer expenses.
For the class you choose, the calculator uses the median manual rate across the 51 jurisdictions. It then multiplies by your state's premium index as a percentage of the national median, which was $1.09 per $100 of payroll in 2024. For example, $100,000 of retail store payroll in a median-cost state gives about $1,200 a year.
What is included
- Medical care and wage replacement for work-related injuries and illnesses, as required by state law
- 24 common class codes from clerical work to roofing
- All 50 states and DC; North Dakota, Ohio, Washington and Wyoming use monopolistic state funds
Limitations
Real premiums also reflect experience modification, premium discounts, deductibles, minimum premiums and dividends, which the study does not capture. Rates for a class can differ widely between states, so applying a state index to a national class median is an approximation. Payroll in several classes must be split by class. Insureon reports that its small business customers pay a median of $54 a month.
This is an indicative estimate, not an offer of insurance. Policies are issued by licensed insurers and placed through licensed producers in your state. Compare real offers by requesting a quote.