New Hampshire Workers Compensation Guide

Workers Compensation Requirements in New Hampshire

New Hampshire requires workers' compensation for all employers with one or more employees. The New Hampshire Department of Labor oversees the workers' comp system. New Hampshire has a relatively employer-friendly system with moderate claim costs and efficient dispute resolution.

Workers Comp Rates in New Hampshire

Workers compensation premiums in New Hampshire are calculated based on payroll, job classification (NCCI or state classification codes), and the employer's experience modification factor. The average rate of approximately $1.62 per $100 of payroll is a statewide blended average — actual rates vary significantly by job classification. A clerical office worker might pay $0.20-$0.40 per $100, while a roofing contractor might pay $15-$25 per $100.

For example, an employer with $1 million in payroll at the average rate of $1.62 per $100 would pay approximately $16,200 annually before experience modification adjustments. Employers with better-than-average loss experience (experience mod below 1.0) pay less; those with worse experience pay more.

Average Workers Comp Rates by City in New Hampshire

Workers comp rates vary by location within New Hampshire due to differences in local injury rates, medical costs, and insurer competition. The following estimated average rates per $100 of payroll reflect blended rates across all job classifications.

City	Est. Avg. Rate per $100 Payroll
Manchester	$1.68
Nashua	$1.65
Concord	$1.58
Derry	$1.62
Dover	$1.58
Rochester	$1.55

Rates shown are blended averages across job classifications. Actual rates vary significantly by occupation type. Consult a licensed workers' compensation specialist for employer-specific quotes.

What Makes New Hampshire Unique

New Hampshire's small size and relatively healthy economy produce moderate workers' comp claim rates. The state's manufacturing, construction, and tourism industries are the primary claim generators. New Hampshire's system is known for relatively efficient administration.

Workers Comp Benefits in New Hampshire

New Hampshire provides temporary total disability at 60% of average weekly wage. Medical benefits cover necessary treatment. Permanent impairment benefits use a schedule based on body part and impairment percentage.

Employee Rights in New Hampshire

New Hampshire workers may choose their own treating physician. The Department of Labor provides hearings officers for dispute resolution.

How Workers Comp Premiums Are Calculated in New Hampshire

Workers compensation premiums in New Hampshire follow this basic formula: (Payroll / 100) × Classification Rate × Experience Modification Factor = Premium. The experience modification factor (EMR or X-Mod) compares your actual loss experience to the expected loss experience for your industry. An EMR of 1.0 is average; below 1.0 means better-than-average safety record (lower premiums); above 1.0 means worse-than-average (higher premiums).

Job classification codes are assigned based on the type of work employees perform. Accurate classification is critical — misclassifying employees into lower-risk categories can result in premium audits and significant back-premium assessments. An employer with employees in multiple classifications must track payroll by class code throughout the year.

How to Reduce Workers Comp Costs in New Hampshire

New Hampshire's competitive market and moderate system make safety investments particularly cost-effective. Manufacturing and construction are the highest-risk industries for premium purposes. Experience modification improvement through loss control programs is the most reliable way to reduce premiums over time.

• Implement a formal workplace safety program — documented safety training reduces injury frequency and improves experience modification over time.
• Develop a return-to-work program — getting injured workers back on modified duty reduces temporary disability claim duration and cost.
• Report all injuries promptly — early reporting enables timely medical treatment and claims management, reducing claim severity.
• Review job classifications annually — ensure employees are classified in the correct (not simply the lowest-cost) classification code.
• Work with a loss control specialist — many insurers offer free safety consultation services that identify hazard reduction opportunities.

The information on this page is provided for general informational purposes only and reflects estimated industry averages and state requirements as of 2026. Workers compensation laws, rates, and requirements change frequently and vary significantly by employer size, industry, and job classification. Rate estimates shown are blended averages and do not represent actual quotes for any specific employer. Always consult a licensed workers' compensation insurance professional and your state's workers' compensation regulatory agency for current, employer-specific information.