How Much Do Contractor Bonding and Insurance Cost?
By BRIX Editorial Team · Updated
Contractor bonding and insurance cost depends on trade, payroll, state and claims history more than on company size. One industry dataset puts small construction firms at an average of about $89 a month for general liability and $175 for workers' comp, while contract bond premiums typically run 0.5% to 3% of the contract price.
Key takeaways
- Budget for at least four lines: license bond, general liability, workers' comp (if you have employees) and commercial auto.
- Workers' comp is the big variable: payroll ÷ 100 × class rate × experience mod, and roofing class rates dwarf clerical ones.
- License bonds are cheap relative to the bond amount; contract bonds cost a percentage of each job.
- Insurance is overhead. Price it into every job through your overhead rate or labor burden, not as an afterthought.
- Clean books, a safety program and verified sub certificates are the three levers you control.
What insurance and bonds does a contractor actually need?
Most trades businesses need a license bond, general liability and, once they hire, workers' comp and commercial auto. What's required by law varies by state; what's required by customers comes from the contract. The table below lists each line, who requires it and what drives the price.
| Coverage or bond | Who typically requires it | What drives the cost |
|---|---|---|
| License (contractor) bond | State licensing boards; e.g. $25,000 in California, $30,000 for a Washington general contractor | Bond amount, owner credit, claims history; paid yearly as a small percentage of the bond amount |
| General liability | Some state boards (Washington, Oregon), most customers and permits | Trade, payroll or revenue, limits, location, claims, uninsured subs |
| Workers' compensation | State law, from the first employee in many states | Payroll by class code, state rates, experience mod |
| Commercial auto | State law for business vehicles; customers | Number and type of vehicles, radius, driver records |
| Tools and equipment (inland marine) | Usually optional | Value of tools and equipment, theft history |
| Umbrella | Larger commercial contracts | Underlying limits and total exposure |
| Contract bonds (bid, performance, payment) | Public owners; federal jobs over $150,000 under the Miller Act | Contract amount, your financials and track record |
Sourced benchmarks: what small contractors pay
Most published "average cost" numbers are unsourced. Two we can attribute: Insureon's customer data for construction businesses (page updated July 21, 2026, drawn from its own small-business policyholders) and Nevada's state risk management guide on surety premiums.
| Line | Benchmark | Source and basis |
|---|---|---|
| General liability | Average $89 per month, $1,069 per year | Insureon, construction businesses on its platform |
| Business owner's policy (GL + property) | Average $125 per month, $1,503 per year | Insureon |
| Workers' compensation | Average $175 per month, $2,101 per year | Insureon |
| Commercial auto | Average $268 per month, $3,212 per year | Insureon |
| Tools and equipment | Average $42 per month, $505 per year | Insureon |
| Commercial umbrella | Average $93 per month, about $1,111 per year | Insureon |
| Surety bonds (mostly license bonds) | Average $9 per month, about $112 per year | Insureon |
| Contract bonds (performance and payment) | About 0.5% to 3% of the contract amount; usually no separate charge for a bid bond | Nevada State Risk Management, 10 Things You Should Know About Surety Bonds |
A worked example: insuring a four-truck HVAC company
Insurance per hour = Total annual premiums ÷ Annual billable hours
- Total annual premiums
- all bonds and policies, including audit adjustments
- Annual billable hours
- hours you actually invoice, not hours paid
Put that number into your overhead rate or labor burden so every quote carries it. The overhead rate calculator and labor burden calculator do the math.
What makes bonding and insurance cost more, or less?
- Trade. Roofing, electrical and steel are rated far above cleaning or landscaping maintenance. Some insurers won't write roofers at all.
- Payroll and revenue. Most policies are rated on exposure and audited at year end; growth means a bill after the audit.
- Experience mod. Claims raise your mod for three years. A safety plan and return-to-work program lower it.
- Limits and deductibles. $1 million / $2 million costs more than state minimums; a higher deductible lowers premium but raises what you pay on small claims.
- Subcontractors without certificates. Uninsured subs are charged to your policy at audit. Collect a certificate of insurance from each one.
- Credit and financials. Bond pricing leans on the owner's credit and, for contract bonds, on financial statements and the WIP report.
- State. Class rates, benefit levels and litigation climate all vary. Texas lets most employers opt out of workers' comp; California requires it from the first employee.
Bonding and insurance cost by trade
| Trade | Workers' comp | General liability | Notes |
|---|---|---|---|
| Roofing | Highest | High | Falls from height; some states require comp for roofers with no employees |
| Electrical | Moderate | Moderate to high | Fire claims drive completed-operations pricing |
| HVAC | Moderate | Moderate | Attic and rooftop work; refrigerant exclusions |
| Plumbing | Moderate | Moderate | Water damage is the common GL claim |
| Landscaping and tree work | Low to very high | Low to moderate | Mowing is cheap; tree removal is not |
| Cleaning | Low | Low | Payroll-heavy, so comp still adds up |
| General contractor | Varies with self-performed work | High | Pays for uninsured subs at audit |
Is it cheaper to go without?
Usually not, once you count what it costs to be caught. A single uncovered water-damage claim can exceed a decade of general liability premiums, states fine and stop-work employers without required workers' comp, and licensing boards suspend licenses when bonds or insurance lapse. Unlicensed contractors in Florida can't even enforce their contracts. See contractor license and surety bond.
How to lower the bill
- Classify payroll correctly. Office staff in a field class is wasted premium.
- Run a safety program and report claims fast. Both move the experience mod.
- Collect certificates from every sub before they start.
- Shop at renewal. Get two or three quotes, including a state fund if your state has one.
- Keep clean, job-level books. Sureties and underwriters price uncertainty; good financials shrink it.
- Raise deductibles only to what you can pay from cash.
Frequently asked questions
How much does it cost to get bonded and insured as a contractor?
For a small shop, a license bond typically costs a small percentage of the bond amount per year, general liability averaged $89 a month and workers' comp $175 a month in Insureon's construction customer data, and commercial auto averaged $268 a month. A multi-truck crew in a high-risk trade can pay many times those averages.
What percentage of revenue should insurance be for a contractor?
There's no published standard, and it varies widely by trade. The useful method is to total your actual premiums, including audit adjustments, divide by billable hours, and build that figure into your rates through your overhead or labor burden calculation.
How much does a $1 million general liability policy cost for a contractor?
It depends on trade, payroll or revenue, state and claims history. Insureon reports an average of $1,069 a year across construction businesses on its platform, most of them very small. A roofer or electrician with a crew should expect substantially more. Get several quotes.
How much does a performance bond cost?
Nevada's state risk management guide puts contract surety premiums at about 0.5% to 3% of the contract amount, depending on project size, type, duration and the contractor. On a $400,000 job at 1.5%, that's $6,000, which contractors normally include in the bid.
Why did my workers' comp bill go up after the audit?
Premium is based on estimated payroll at the start of the policy and trued up to actual payroll at audit. If you hired, paid overtime, or used subcontractors without certificates of insurance, the auditor adds that exposure and bills the difference.
Can I pass insurance costs on to customers?
Yes, and you should, by including them in your overhead rate so every quote carries its share. Public bids also commonly include bond premiums as a line item. What you can't do is make employees pay for workers' comp; states generally prohibit deducting it from wages.
Related
- What Is General Liability Insurance for Contractors?What general liability insurance covers for contractors, what it excludes, which states require it to hold a license, and what drives the premium.
- What Is Workers' Compensation Insurance?When contractors must carry workers' compensation, how employee thresholds differ by state, and how premiums are calculated from payroll and class rates.
- What Is a Surety Bond?How contractor surety bonds work: license, bid, performance and payment bonds, state bond amounts, the federal Miller Act, and what a bond costs.
- What Is a Certificate of Insurance?What a certificate of insurance is, what it does and doesn't prove, how to read one from a sub, and what licensing boards and GCs require on it.
- What Is a Contractor License?What a contractor license is, when you need one, and how six states set dollar thresholds, bonds and insurance, with links to each licensing board.
- What Is Overhead, and How Do Contractors Calculate It?What counts as overhead in a trades business and how to calculate your overhead rate per revenue dollar, billable hour, job and day, with a worked example.
- What Is Labor Burden?Labor burden is what an employee costs beyond wages: payroll taxes, workers' comp, benefits. See the formula, 2026 tax rates and a tech's true hourly cost.
- Overhead Rate CalculatorCalculate your overhead rate as a % of revenue, % of direct labor and $ per billable hour. See what to count as overhead and how to price it into jobs.
- Labor Burden CalculatorCalculate labor burden with 2026 payroll tax rates, workers' comp, benefits, PTO and unbillable time. See an employee's true cost per billable hour.
- What Is a Mechanic's Lien?How a mechanic's lien works for contractors, with notice, filing and enforcement deadlines from six state statutes and a worked example.
Sources
- Insureon, Construction contractor insurance cost (industry data, updated July 21, 2026) (checked October 12, 2026)
- Nevada State Risk Management, 10 Things You Should Know About Surety Bonds (checked October 12, 2026)
- CSLB, Bond Requirements ($25,000 contractor bond) (checked October 12, 2026)
- Washington L&I, Register as a contractor (bond and insurance) (checked October 12, 2026)
- SAIF, Premium and rate overview (workers' comp premium formula) (checked October 12, 2026)
- FAR 28.102-1, Miller Act bond requirements (checked October 12, 2026)
- California DIR, Division of Workers' Compensation, Employer information (checked October 12, 2026)
- Texas Department of Insurance, Division of Workers' Compensation, Employer resources (checked October 12, 2026)