Estimate workers compensation premiums based on payroll, class code rate, and experience modifier.
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Open the Workers Comp Cost Estimator and fill in the required input fields with your numbers or selections.
Review the calculation
The tool automatically computes the result as you type. Double-check your inputs to ensure accuracy.
Interpret your results
Review the calculated output along with any breakdowns, charts, or explanations provided to understand what the numbers mean for your situation.
Payroll rates verified against IRS Publication 15 and Department of Labor data
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Office workers, IT, administrative staff
1.0 = average; higher for expensive states
Below 1.0 = better than average safety record
Workers' compensation insurance is a state-mandated program that provides benefits to employees who are injured or become ill as a result of their job. Nearly every state requires employers to carry this coverage. Premiums are based on payroll, industry classification, and the employer's claims history.
Premiums are calculated as a rate per $100 of payroll, which varies dramatically by industry classification code. Office workers might pay $0.30 to $0.75 per $100, while construction trades can pay $5.00 to $15.00 or more. The National Council on Compensation Insurance (NCCI) and state rating bureaus publish these base rates annually.
The Experience Modification Rate (EMR) is the single most impactful factor employers can control. An EMR of 1.00 represents the industry average. Companies with fewer claims than average receive an EMR below 1.00, reducing their premium. Those with more claims get an EMR above 1.00, increasing costs. An EMR of 0.75 means 25% savings, while 1.40 means 40% more than average.
State modifiers reflect differences in workers' comp costs across states. States like California, New York, and New Jersey tend to have higher costs due to benefit levels and medical costs, while states like Indiana and Virginia tend to be less expensive. Monopolistic states (Ohio, North Dakota, Washington, Wyoming) require employers to purchase coverage through state funds.
To reduce workers' comp costs, employers should focus on workplace safety programs, return-to-work initiatives, proper employee classification, and claims management. Many insurers offer loss-control services and premium discounts for formal safety programs. Even a single large claim can raise your EMR for three years, making prevention far more cost-effective than reactive measures.