New Hampshire Workers' Compensation Guide for Contractors & Small Businesses
In New Hampshire, workers' compensation insurance is mandatory for all employers with one or more employees—including part-time, seasonal, and minors—under RSA 281-A. Unlike many states, NH does not operate a state fund; private insurers and self-insurance (with strict approval) are the only options. Contractors and small business owners must verify coverage before hiring, as failure to comply triggers steep penalties and personal liability.
Mandatory Coverage & Legal Requirements
Under New Hampshire law (RSA 281-A:2), every employer engaged in any employment—including sole proprietors who hire even one employee—must secure workers' compensation insurance. This applies to construction contractors, tradespeople, landscapers, and service-based small businesses operating in NH. Coverage must be active before the first employee begins work. Independent contractors are exempt *only if* they meet all four statutory criteria under RSA 281-A:2, VI: (1) free from control/direction, (2) customarily engaged in an independently established trade, (3) hold a valid NH business license, and (4) maintain their own workers' comp if they employ others. Misclassification carries severe risk: the NH Labor Department presumes employee status unless the employer proves otherwise. Employers must post the NH Workers’ Compensation Notice (Form WC-100) visibly at each worksite and retain proof of coverage for inspection. Failure to carry required coverage violates RSA 281-A:19 and subjects employers to civil penalties, stop-work orders, and potential criminal misdemeanor charges upon repeat violation.
Exemptions, Eligibility & Self-Insurance
NH offers very limited exemptions. Sole proprietors, partners, and LLC members may elect *not* to cover themselves—but this exclusion must be formally filed with the insurer and cannot extend to any employees. Corporate officers may also exclude themselves if they own ≥25% of voting stock and file Form WC-101 with their insurer. However, no exemption applies to subcontractors hired by a general contractor—those individuals must carry their own valid NH policy. Self-insurance is permitted under RSA 281-A:27 but requires rigorous financial qualification: minimum net worth of $1 million, audited financials, and prior approval from the NH Insurance Department and Labor Bureau. Only large, financially stable entities typically qualify; most contractors and small businesses must purchase coverage through licensed private carriers. The NH Labor Bureau maintains a searchable list of approved insurers on its website, and all policies must include the NH-specific endorsement confirming compliance with RSA 281-A. Employers must report changes in payroll, employee count, or business operations within 30 days to avoid premium audits and retroactive adjustments.
Premium Calculation & Cost Factors
Workers’ compensation premiums in New Hampshire are calculated using a formula based on payroll, industry classification code (NCCI or NH-specific), and experience modification factor (mod). Each job classification—e.g., carpentry (code 5606), roofing (5403), or electrical contracting (5190)—carries a base rate per $100 of payroll. Premium = (Payroll ÷ 100) × Base Rate × Experience Mod. New businesses start with a mod of 1.0; after three years of claims history, the mod adjusts up or down based on claim frequency and severity relative to industry peers. NH uses NCCI’s national rating system but enforces state-specific rules—for example, payroll includes all wages, bonuses, commissions, and the cash value of non-cash compensation. Overtime pay is included *only* if it’s regular and recurring—not occasional. Employers must maintain accurate payroll records for audit purposes. Underreporting payroll can trigger a 25% penalty plus interest on unpaid premiums. Additionally, NH requires a $100 annual assessment fee paid directly to the NH Labor Bureau, separate from insurer premiums. Contractors should obtain quotes from at least three NH-licensed carriers, as rates vary significantly—even within the same class code—due to carrier-specific loss-cost multipliers and safety program credits.
Claims Process, Reporting & Penalties
NH employers must report all work-related injuries resulting in medical treatment beyond first aid or lost time to the insurer *within 48 hours*, using Form WC-102. A written First Report of Injury must follow within seven days. The injured worker must receive a copy of the report and be informed of their rights under RSA 281-A. Claims are adjudicated by the NH Department of Labor’s Workers’ Compensation Division, which oversees dispute resolution, hearings, and benefit determinations—including temporary total disability (TTD) at 60% of average weekly wage, capped at 100% of the state average weekly wage ($1,528.50 as of 2024). Employers failing to report timely face fines up to $2,500 per incident. Willful failure to secure coverage incurs penalties of up to $25,000 per violation and/or imprisonment up to one year (RSA 281-A:19). Uninsured employers are also personally liable for all benefits, medical costs, and attorney fees awarded to injured workers—and may be barred from bidding on public contracts. The Labor Bureau conducts random audits and investigates complaints; contractors found noncompliant may be listed publicly on the NH Labor Department’s ‘Uninsured Employer List’ and referred for prosecution.
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Do I need workers’ comp if I’m a sole proprietor with no employees in NH?
No—you’re not required to carry coverage for yourself unless you voluntarily elect it. However, if you hire even one part-time or seasonal worker, coverage becomes mandatory immediately. Also, many general contractors and municipalities require proof of your own policy before awarding subcontracts—even if you have no employees.
How do I prove my subcontractor is truly independent and exempt from my policy in NH?
You must verify they meet all four statutory tests in RSA 281-A:2, VI: control, independent trade, NH business license, and their own workers’ comp (if they employ others). Request a current Certificate of Insurance naming them as insured and cross-check their NH business license status via the NH Secretary of State portal. Document everything—NH presumes employee status without clear evidence.
What happens if my NH workers’ comp insurer cancels my policy mid-term?
You must secure replacement coverage *immediately*. The NH Labor Bureau requires continuous coverage—any gap triggers automatic noncompliance. You’ll need to file Form WC-103 (Notice of Cancellation) and submit proof of new coverage within five days. Failure may result in a $1,000 fine and suspension of business operations until compliance is restored.
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