Contractor Bond vs Insurance: What’s the Difference?

A contractor bond protects your customers, workers, and the public from you; contractor insurance protects your business from claims made against it. When a surety pays a bond claim, you have to pay the surety back. When an insurer pays a covered claim, you don't — beyond your deductible and any later premium increase. That's why most licensing boards require a bond, while customers, general contractors, and permit offices require proof of insurance, and why most contractors end up carrying both.

If you're budgeting for either, the general contractor license cost calculator includes bond and insurance lines, and the companion guides cover what a contractor bond costs and general liability insurance for contractors in detail.

Side-by-side comparison

How a bond actually works

A surety bond is a guarantee, closer to a line of credit than to insurance. When you buy a license bond, the surety promises the obligee (for example, the state licensing board) that if you violate the license law and harm someone, the surety will pay valid claims up to the bond amount. Before issuing it, the surety has you sign a general indemnity agreement: you — and often your spouse and company — promise to reimburse the surety for anything it pays, plus its investigation and legal costs.

That's why the surety cares about your credit. It isn't pricing the odds that a claim happens and absorbing the loss; it's pricing the odds that it can't collect from you afterward.

Example: a license bond claim. A homeowner pays a $15,000 deposit for a kitchen remodel. The contractor orders nothing, stops answering calls, and the board finds a license-law violation. The homeowner files against the contractor's $25,000 license bond, and the surety pays $15,000. The surety then demands $15,000 plus its legal fees from the contractor. If the contractor doesn't pay, the surety can sue, and the board can suspend the license until the bond is replaced — usually at a higher premium, if any surety will write it at all.

How insurance works

Insurance shifts risk. You pay a premium; the insurer pools that premium with thousands of other contractors and pays covered claims from the pool. A commercial general liability (CGL) policy also pays to defend you against covered lawsuits, often in addition to the limits.

Example: a liability claim. The same contractor's helper knocks over a ladder that dents a client's car: $3,200 of damage. The contractor reports it, the GL insurer pays the claim minus a $1,000 deductible, and the contractor doesn't repay the remaining $2,200. The claim may raise next year's premium, but there's no reimbursement demand.

Which one pays? Common scenarios

Types of contractor bonds

• License and permit bonds. Required to get or keep a license or registration, or to pull certain permits (right-of-way, street cuts, sidewalks). California, for example, requires a $25,000 contractor bond for every active license, filed with the Contractors State License Board.
• Bid bonds. Guarantee you'll sign the contract and furnish performance and payment bonds if you win.
• Performance bonds. Guarantee you'll complete the contract. If you default, the surety finishes the job or pays the owner, up to the bond amount.
• Payment bonds. Guarantee you'll pay subcontractors and suppliers. They exist largely because mechanics' liens can't be filed against public property.
• Maintenance or warranty bonds. Guarantee repairs during a warranty period.

The federal Miller Act requires performance and payment bonds on federal construction contracts above $150,000 (FAR 28.102-1), and nearly every state has a "Little Miller Act" for its own public works. Small contractors who can't qualify for bonding on their own can use the SBA Surety Bond Guarantee program, which backs bid, performance, and payment bonds on contracts up to $9 million (non-federal) or $14 million (federal). The contractor pays SBA a fee of 0.6% of the contract price for performance and payment bond guarantees; there's no SBA fee for bid bonds.

Types of contractor insurance

• Commercial general liability: third-party bodily injury and property damage from your operations and completed work, plus personal and advertising injury. Construction contracts commonly ask for $1 million per occurrence and $2 million aggregate, and some states set minimums for licensing — Washington, for example, requires $200,000 of bodily injury coverage for multiple persons and $50,000 of property damage coverage (RCW 18.27.050).
• Workers' compensation: employee injuries, as required by state law. Rules for owners differ sharply: Florida treats construction sole proprietors as covered unless they qualify for an exemption, while California will require every licensed contractor to carry it starting January 1, 2028, even with no employees.
• Commercial auto: vehicles titled to the business or used for business. A personal auto policy may exclude business use.
• Inland marine / tools and equipment: your property in transit and at job sites.
• Builder's risk: the structure under construction.
• Umbrella / excess liability: additional limits above GL, auto, and employer's liability.
• Professional liability: design errors, for design-build and construction management.
• Contractor's pollution liability: mold, asbestos, lead, and fuel releases that a GL policy often excludes.

Which do you need first?

Work backward from what you're trying to do:

1. Getting licensed? Check the board's bond amount first. In bond states, the board won't activate your license until the bond is on file.
2. Pulling permits? Many cities require a certificate of insurance, and some require a permit bond, before they'll issue permits. See state vs city contractor licensing for how those local layers work.
3. Working as a sub? The GC will demand a certificate of insurance naming them as additional insured, plus workers' comp or an exemption, before you set foot on site.
4. Bidding public work? You'll need bonding capacity — a surety relationship with a set single-job and aggregate limit — which takes financial statements and time to establish.
5. Hiring your first employee? Workers' compensation is mandatory in almost every state from the first hire.

What it costs

A bond's price is a percentage of the bond amount — commonly a small percentage for applicants with good credit and more for weaker credit. A $25,000 license bond priced at 2% costs $500 a year. Insurance is priced on your trade, payroll, revenue, claims history, and limits, so a roofer with employees pays far more than a solo painter for the same limits. Both premiums are deductible business expenses; see contractor tax deductions.

The total of license fees, bond, insurance down payments, and other launch costs is covered in contractor startup costs.

"Licensed, bonded, and insured": how customers can check

• License: look it up on the state board's website. California's CSLB license lookup, for example, shows the license status, the bond on file, and workers' compensation information.
• Bond: the board lookup usually lists the surety and bond number; you can call the surety to confirm it's active.
• Insurance: ask for a certificate of insurance sent directly by the contractor's agent, and check the policy dates, limits, and named insured. A certificate is proof of coverage on the date issued, not a guarantee that the policy stays in force.

If you're the contractor, keep all three current. A lapsed bond can suspend your license, and an expired certificate can get you walked off a job site the same day.