Contractor Insurance Cost Calculator
ANA›Life Services Authority›National Calculator Authority›Contractor Insurance Cost Calculator
.calc-container { max-width: 640px; margin: 2rem 0; padding: 1.5rem; background: #fff; border: 1px solid #ddd; border-radius: 8px; box-shadow: 0 1px 3px rgba(0,0,0,0.06); font-family: system-ui, -apple-system, sans-serif; } .calc-container h3 { font-family: Georgia, serif; font-size: 1.15rem; color: #1a1a1a; margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--ac, #3d5a80); } .calc-row { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.75rem; flex-wrap: wrap; } .calc-row label { min-width: 160px; font-size: 0.9rem; color: #333; font-weight: 500; } .calc-row input[type="number"], .calc-row select { flex: 1; min-width: 120px; max-width: 200px; padding: 0.5rem 0.6rem; border: 1px solid #ccc; border-radius: 4px; font-size: 0.9rem; font-family: system-ui, sans-serif; color: #1a1a1a; background: #fafaf8; } .calc-row input:focus, .calc-row select:focus { outline: none; border-color: var(--ac, #3d5a80); box-shadow: 0 0 0 2px rgba(26,74,138,0.12); } .calc-row .unit { font-size: 0.82rem; color: #888; min-width: 30px; } .calc-btn { display: inline-block; margin-top: 0.5rem; padding: 0.55rem 1.5rem; background: var(--ac, #3d5a80); color: #fff; border: none; border-radius: 4px; font-size: 0.9rem; font-weight: 600; cursor: pointer; font-family: system-ui, sans-serif; } .calc-btn:hover { opacity: 0.9; } .calc-result { margin-top: 1.25rem; padding: 1rem 1.25rem; background: #f0f6fc; border-left: 3px solid var(--ac, #3d5a80); border-radius: 0 6px 6px 0; display: none; } .calc-result.visible { display: block; } .calc-result-label { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: #666; margin-bottom: 0.25rem; } .calc-result-value { font-size: 1.6rem; font-weight: 700; color: var(--ac, #3d5a80); } .calc-result-detail { font-size: 0.85rem; color: #555; margin-top: 0.5rem; line-height: 1.5; } .calc-note { margin-top: 1rem; font-size: 0.8rem; color: #888; font-style: italic; } .calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; margin-top: 0.75rem; } .calc-grid-item { padding: 0.6rem 0.8rem; background: #f8f9fa; border-radius: 4px; border: 1px solid #eee; } .calc-grid-item .label { font-size: 0.75rem; color: #888; text-transform: uppercase; letter-spacing: 0.04em; } .calc-grid-item .value { font-size: 1.1rem; font-weight: 600; color: #1a1a1a; } @media (max-width: 720px) { .calc-row { flex-direction: column; align-items: flex-start; gap: 0.3rem; } .calc-row label { min-width: auto; } .calc-row input[type="number"], .calc-row select { max-width: 100%; width: 100%; } .calc-grid { grid-template-columns: 1fr; } } .calc-chart { margin: 1rem 0; text-align: center; } .calc-chart svg { max-width: 100%; height: auto; } .calc-chart-legend { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem 1.2rem; margin-top: 0.6rem; font-size: 0.8rem; color: #555; } .calc-chart-legend span { display: inline-flex; align-items: center; gap: 0.3rem; } .calc-chart-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; font-style: normal; } .calc-related { max-width: 640px; margin: 2rem 0 1rem; padding: 1.25rem 1.5rem; background: #f8f9fa; border: 1px solid #e8e8e8; border-radius: 8px; } .calc-related h3 { font-family: Georgia, serif; font-size: 1rem; color: #1a1a1a; margin: 0 0 0.75rem; padding-bottom: 0.4rem; border-bottom: 2px solid var(--ac, #3d5a80); } .calc-related-list { list-style: none; padding: 0; margin: 0 0 0.75rem; display: grid; grid-template-columns: 1fr 1fr; gap: 0.4rem 1.5rem; } .calc-related-list li a { font-size: 0.88rem; color: var(--ac, #3d5a80); text-decoration: none; } .calc-related-list li a:hover { text-decoration: underline; } .calc-browse-all { margin: 0.5rem 0 0; font-size: 0.9rem; font-weight: 600; } .calc-browse-all a { color: var(--ac, #3d5a80); text-decoration: none; } .calc-browse-all a:hover { text-decoration: underline; } @media (max-width: 720px) { .calc-related-list { grid-template-columns: 1fr; } }
Contractor Insurance Cost Calculator
Estimate your annual contractor insurance premiums based on trade type, revenue, payroll, and coverage needs.
Contractor Trade
General Contractor Electrical Plumbing HVAC Roofing Painting Carpentry / Framing Landscaping Concrete / Masonry Drywall / Insulation
Annual Revenue ($)
Annual Payroll ($) (employees only, not subs)
Number of Employees (including owner)
General Liability Limit
$1M / $2M aggregate $2M / $4M aggregate $5M / $10M aggregate
Tools & Equipment Value ($)
State (for Workers' Comp rate)
Low-cost state (e.g. TX, NC, IN) Mid-cost state (e.g. FL, GA, AZ) High-cost state (e.g. CA, NY, WA)
Prior Claims in Last 3 Years
None 1 claim 2 claims 3+ claims
Calculate
function conCalc() { // --- Inputs --- var trade = document.getElementById('con-trade').value; var revenue = parseFloat(document.getElementById('con-revenue').value); var payroll = parseFloat(document.getElementById('con-payroll').value); var employees = parseInt(document.getElementById('con-employees').value); var glLimit = parseInt(document.getElementById('con-gl-limit').value); var toolsVal = parseFloat(document.getElementById('con-tools-value').value); var stateWC = document.getElementById('con-state-wc').value; var claims = parseInt(document.getElementById('con-claims').value);
// --- Validation --- var errors = []; if (isNaN(revenue) || revenue revenue) errors.push("Payroll cannot exceed annual revenue.");
if (errors.length > 0) { document.getElementById('con-result').innerHTML = 'Please fix the following:' + errors.join('') + '
'; return; }
// ============================================================ // 1. GENERAL LIABILITY (GL) // Base rate per $1,000 of revenue varies by trade risk class // Source: NCCI / ISO GL rating methodology // ============================================================ var glRatePerK = { general: 8.50, electrical: 7.20, plumbing: 7.00, hvac: 6.80, roofing: 14.50, // highest-risk trade painting: 6.50, carpentry: 8.00, landscaping:5.80, concrete: 9.20, drywall: 7.50 }[trade];
// Limit multiplier (base = $1M/$2M) var glLimitMult = (glLimit === 2000000) ? 1.25 : (glLimit === 5000000) ? 1.65 : 1.00;
var glPremium = (revenue / 1000) * glRatePerK * glLimitMult;
// Minimum GL premium var glMin = 750; glPremium = Math.max(glPremium, glMin);
// ============================================================ // 2. WORKERS' COMPENSATION // Rate per $100 of payroll by trade & state tier // Source: NCCI class codes (e.g. 5183 plumbing, 5551 roofing) // ============================================================ var wcBaseRatePer100 = { general: 8.00, electrical: 5.50, plumbing: 5.20, hvac: 5.00, roofing: 18.00, painting: 7.50, carpentry: 9.00, landscaping:7.00, concrete: 10.50, drywall: 8.50 }[trade];
var wcStateMult = { low: 0.80, mid: 1.00, high: 1.45 }[stateWC]; var wcPremium = (payroll / 100) * wcBaseRatePer100 * wcStateMult;
// Minimum WC premium if there are employees if (employees >= 1 && payroll > 0) { wcPremium = Math.max(wcPremium, 500); }
// ============================================================ // 3. TOOLS & EQUIPMENT (Inland Marine) // Typical rate: 1.5% – 3.5% of insured value depending on trade // ============================================================ var toolsRatePct = { general: 0.025, electrical: 0.020, plumbing: 0.020, hvac: 0.022, roofing: 0.030, painting: 0.018, carpentry: 0.022, landscaping:0.025, concrete: 0.028, drywall: 0.020 }[trade];
var toolsPremium = toolsVal * toolsRatePct; var toolsMin = 200; if (toolsVal > 0) toolsPremium = Math.max(toolsPremium, toolsMin);
// ============================================================ // 4. CLAIMS SURCHARGE // 0 claims = 0%, 1 = +10%, 2 = +20%, 3+ = +35% // Applied to GL and WC only // ============================================================ var claimsSurcharge = [0, 0.10, 0.20, 0.35][Math.min(claims, 3)]; var claimsSurchargeAmt = (glPremium + wcPremium) * claimsSurcharge;
// ============================================================ // 5. TOTALS // ============================================================ var subtotal = glPremium + wcPremium + toolsPremium; var total = subtotal + claimsSurchargeAmt;
// Monthly estimate var monthly = total / 12;
// Format helper function fmt(n) { return '$' + n.toFixed(2).replace(/\B(?=(\d{3})+(?!\d))/g, ','); } function pct(n) { return (n * 100).toFixed(1) + '%'; }
var claimsLabel = ['None', '1 claim (+10%)', '2 claims (+20%)', '3+ claims (+35%)'][Math.min(claims, 3)];
document.getElementById('con-result').innerHTML = '### Estimated Annual Insurance Cost ' + '' + 'General Liability (' + fmt(glLimit) + ' limit)' + fmt(glPremium) + '' + 'Workers' Compensation (' + stateWC + '-cost state)' + fmt(wcPremium) + '' + 'Tools & Equipment (Inland Marine)' + fmt(toolsPremium) + '' + (claimsSurchargeAmt > 0 ? 'Claims Surcharge (' + claimsLabel + ')' + fmt(claimsSurchargeAmt) + '' : '') + 'Total Annual Premium' + fmt(total) + '' + 'Estimated Monthly Payment' + fmt(monthly) + '' + '' + 'Estimates only. Actual premiums vary by insurer, experience mod, and underwriting.
'; }
#### Formulas Used
General Liability: GL Premium = (Annual Revenue ÷ 1,000) × Trade Rate × Limit Multiplier Trade rates range from $5.80 (landscaping) to $14.50 (roofing) per $1,000 revenue. Limit multipliers: $1M/2M = 1.00×, $2M/4M = 1.25×, $5M/10M = 1.65×. Minimum: $750.
Workers' Compensation: WC Premium = (Annual Payroll ÷ 100) × NCCI Class Rate × State Multiplier Class rates range from $5.00 (HVAC) to $18.00 (roofing) per $100 payroll. State multipliers: Low = 0.80×, Mid = 1.00×, High = 1.45×. Minimum: $500.
Tools & Equipment (Inland Marine): Tools Premium = Insured Value × Trade Rate (1.8% – 3.0%). Minimum: $200.
Claims Surcharge: Applied to GL + WC: 0 claims = 0%, 1 = 10%, 2 = 20%, 3+ = 35%.
Total: GL + WC + Tools + Claims Surcharge
#### Assumptions & References
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