Contractor bonds and insurance are two different protections a contractor carries: bonds guarantee the contractor will follow the law and finish the job, while insurance pays for accidents, injuries, and property damage during the work. Most jurisdictions require a license bond, general liability insurance, and workers’ compensation as conditions of holding an active license, and project owners usually demand proof of both before work begins. The combination you actually need depends on whether you have employees, whether the project is public or private, and how large the contract is.
How a Bond Differs From Insurance
This is the point that trips up most contractors buying their first bond. A bond is not insurance for the contractor. It is a three-party guarantee: the contractor (the principal) buys the bond from a surety, and the bond protects a third party (the obligee), usually a licensing board or project owner. If a valid claim is paid, the surety pays the claimant, then collects every dollar back from the contractor along with administrative costs.
Insurance works the other way. The insurer absorbs covered losses in exchange for premiums and does not come after the policyholder for reimbursement. That difference drives everything else: sureties underwrite bonds on your ability to repay, so personal credit and business financials weigh heavily, while insurers underwrite on the risk of the work itself.
The Bonds Contractors Actually Need
Four bond types cover almost every situation a contractor runs into.
- A license bond is required by state or local licensing boards as a condition of holding a contractor’s license and guarantees compliance with applicable regulations. Amounts vary by jurisdiction, commonly $10,000 to $25,000 for residential contractors and higher for commercial licenses. It stays in force as long as the license is active.
- A bid bond guarantees that a contractor who wins a bid will accept the contract. If the winning bidder walks away, the surety covers the project owner for the difference between that bid and the next-lowest one, up to the bond amount.
- A performance bond guarantees the contractor will complete the project per the contract. If the contractor defaults, the surety either pays to bring in a replacement or compensates the owner.
- A payment bond protects subcontractors and material suppliers by guaranteeing they get paid. Without one, unpaid subs can file mechanics’ liens against the property owner.
Bid, performance, and payment bonds are collectively called contract surety bonds and show up on public works and large commercial jobs. Federal law requires both a performance bond and a payment bond on any federal construction contract exceeding $100,000; the payment bond must equal the total contract amount unless the contracting officer sets it lower, and it can never fall below the performance bond amount.1Office of the Law Revision Counsel. 40 U.S.C. 3131 – Bonds of Contractors of Public Buildings or Works All 50 states have their own versions for state-funded and locally funded projects, with trigger thresholds ranging from around $25,000 to $100,000 or more.
What Bonds Cost
License bond premiums usually fall between 1% and 10% of the bond’s face value, and personal credit is the biggest factor. A contractor with a credit score above 700 can expect 1% to 3%, so a $25,000 license bond runs about $250 to $750 a year. Poor credit or past bankruptcies push the rate to 8% to 15% for the same coverage.
Contract surety bonds for larger projects are priced on more than credit. Sureties look at financial statements, work history, and current project backlog. Premiums on performance and payment bonds typically run 1% to 3% of the contract value, and the percentage often drops as the contract gets bigger. Sureties also assign each contractor a bonding capacity, which is the maximum total value of bonded work they will guarantee at one time.
The Insurance Policies Contractors Need
General liability and workers’ compensation are the baseline. Most contractors need several other policies on top of those because of gaps that only reveal themselves when something goes wrong.
General Liability
General liability covers third-party claims for bodily injury or property damage caused by the work. A visitor trips over materials, a crew damages a neighboring building, the policy pays defense costs and any settlement or judgment. Standard limits in construction are $1 million per occurrence and $2 million aggregate for the policy period.
The policy also covers “completed operations” claims that arise after the project is finished: a deck that collapses six months later, a plumbing installation that floods a client’s home the following year. Most contractor claims land in this category, so a policy without completed operations has a serious gap.
General liability does not cover the contractor’s own tools, equipment, or property, and it does not cover injuries to the contractor’s own employees. Those risks need other policies.
Workers’ Compensation
Workers’ compensation pays medical bills and replaces wages for employees injured or made ill by their work, and in exchange employees give up the right to sue the employer for negligence. Nearly every jurisdiction requires it for any contractor with even one employee, and construction carries some of the highest premium rates because the injury risk is high.
Operating without it is costly. Penalties range from per-employee fines to immediate stop-work orders and, in many states, criminal charges with possible jail time. A license is usually suspended or revoked for any lapse.
Sole proprietors and independent contractors with no employees are generally exempt, and some states let corporate officers or LLC members opt out of coverage for themselves under specific ownership and management criteria. The rules differ by state, so verify your own situation with the state workers’ compensation authority. Even when exempt, some contractors buy coverage voluntarily, and some general contractors require it before allowing a solo contractor on a job site regardless of the legal exemption.
Builder’s Risk
Standard property insurance does not apply to a building under construction. Builder’s risk covers the structure and the on-site materials against fire, theft, vandalism, storms, and similar events while the work is underway. Coverage limits should match the anticipated total project cost. The policy expires when construction is complete or the building is occupied.
Inland Marine and Equipment Coverage
Because general liability does not cover the contractor’s own tools, inland marine insurance (sometimes called a contractor’s equipment floater) covers tools and heavy equipment against theft, vandalism, fire, and accidental damage, whether at a job site, in transit, or in storage. For a crew whose truck carries tens of thousands of dollars in specialized tools, it is not practically optional.
Commercial Auto
Personal auto policies typically exclude accidents that happen during business activity. A contractor driving a work truck to a job site may find a personal insurer denies the claim outright. Commercial auto covers vehicles used for business, including liability for injuries to others and damage to the vehicle. Anyone driving to job sites, hauling materials, or transporting equipment needs it.
Umbrella and Excess Liability
An umbrella or excess liability policy sits above the limits of the primary general liability, commercial auto, and workers’ compensation policies. When a serious accident produces a judgment above the $1 million or $2 million primary limits, the umbrella covers the excess. Multi-million-dollar construction injury settlements are increasingly common, and umbrella coverage is far cheaper than the exposure it prevents. Many commercial project owners require $5 million or more in umbrella limits.
Subcontractor Coverage and Additional Insured Status
A general contractor can be held financially responsible for injuries and damage caused by its subcontractors. When a sub’s insurance has lapsed or was never bought, claims from the sub’s work default to the GC’s own policy, which drives up premiums and burns through limits meant for the GC’s own operations.
The standard practice is to require every subcontractor to provide a Certificate of Insurance (COI) before starting work, listing the sub’s insurer, coverage types, policy limits, and expiration dates. Smart GCs also require being named as an additional insured on the sub’s policy. That endorsement extends the sub’s liability coverage to the GC for claims arising from the sub’s work, creating a first line of defense before the GC’s own policy responds. Most insurers add it at little or no extra cost.
Applying for Bonds and Insurance
Sureties and insurance underwriters price the risk based on financial stability, track record, and the type of work. Having the paperwork ready before you apply removes most of the delay.
- Business identification: EIN or SSN, business license number, and legal entity structure.
- Financial statements: a current balance sheet and income statement. Larger bond amounts require audited or CPA-reviewed financials.
- Revenue and payroll data: estimated annual gross receipts and total payroll, which drive general liability and workers’ compensation premiums.
- Loss history: all insurance and bond claims from the past three to five years. A clean history meaningfully reduces premiums.
- Project information: for contract surety bonds, the contract value, scope, timeline, and subcontractor arrangements for the specific project.
Brokers use standardized industry forms for insurance applications. An underwriter reviews the risk and returns a quote with premium costs and any required endorsements. A straightforward license bond for a contractor with good credit can be approved within a day. Larger contract surety bonds with detailed financial review may take a week or more. Once the premium is paid, the broker issues a Certificate of Insurance as proof of coverage, and the surety issues the bond document for filing with the licensing board or project owner.
Filing a Claim Against a Contractor’s Bond
Property owners, subcontractors, and suppliers harmed by a bonded contractor’s actions file directly with the surety that issued the bond. The licensing board or the contract documents will identify the surety. Claims have deadlines that vary by bond type and jurisdiction, so act promptly.
The surety investigates independently. If the claim is valid, it pays the claimant up to the bond’s face value and then pursues the contractor for reimbursement. The face value is the ceiling: a $25,000 bond against $40,000 in damages leaves the claimant to chase the remaining $15,000 through other legal channels. Contractors with paid claims face higher premiums on future bonds and may lose the ability to get bonded at all, which effectively ends their work on bonded projects.
A bond claim is separate from a complaint to the licensing board. The board can suspend or revoke a license over an unresolved valid claim, but it does not pay claims or mediate disputes. Filing both is common when a contractor has caused financial harm.
Tax Treatment of Premiums
Bond and insurance premiums paid for business purposes are generally deductible as ordinary and necessary business expenses, including general liability, workers’ compensation, commercial auto, builder’s risk, and surety bonds. The premium must be directly related to business operations, paid or incurred during the tax year, and documented with invoices and proof of payment.2Internal Revenue Service. IRS Publication 535 – Business Expenses
Some premiums must be capitalized rather than deducted immediately. If a surety bond is tied to a specific capital project or asset, the premium may need to be added to that asset’s cost basis and recovered through depreciation instead of written off in a single year. A tax professional familiar with construction can tell you which treatment applies to a given premium.