NH Contractor Insurance Cost Estimator
Estimate your annual contractor insurance costs in New Hampshire including General Liability, Workers' Compensation, and Commercial Auto coverage based on your trade, annual revenue, payroll, and fleet size.
Formulas Used
General Liability Premium
GL Premium = (Annual Revenue ÷ 1,000) × Trade Base Rate × Limit Multiplier
Trade base rates range from $1.20 (landscaping) to $3.20 (roofing) per $1,000 revenue.
$2M/$4M limit applies a 1.35× multiplier. Minimum premium: $750.
Workers' Compensation Premium
WC Premium = (Annual Payroll ÷ 100) × NCCI Class Rate × Experience Modification Rate (EMR)
NCCI rates range from $5.20 (electrical) to $22.00 (roofing) per $100 payroll.
EMR: 1.00 (no claims), 1.15 (1 claim), 1.35 (2 claims), 1.60 (3+ claims). Minimum: $500.
Commercial Auto Premium
Auto Premium = Number of Vehicles × Per-Vehicle Rate × Claims Surcharge
Per-vehicle rates range from $1,600 (landscaping) to $2,200 (roofing) annually.
Claims surcharge: +8% per claim on record.
Tools & Equipment (Inland Marine)
Tools Premium = $350 base + ($50 × Number of Employees)
Total = GL + WC + Auto + Tools & Equipment