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Insurance Glossary

Surety Bond

Definition

A surety bond is a three-party agreement in which a surety guarantees that a principal will fulfill an obligation to an obligee, such as completing a contract or complying with a license requirement. If the principal defaults, the surety may pay, then seek reimbursement.

Last updated October 13, 2026

How a surety bond works

NASBP describes a surety bond as a promise to be liable for the debt, default, or failure of another. Three parties are involved: the principal, whose obligation the surety backs; the obligee, who requires the bond and benefits from it; and the surety, the company that issues it. The principal typically pays a premium and is expected to reimburse the surety for any loss, often under an indemnity agreement, so the arrangement resembles credit more than risk transfer.

Bonds fall into two broad groups. Contract surety bonds, used in construction, include bid, performance, payment, and warranty bonds. Commercial surety bonds include license and permit bonds, court bonds, fiduciary bonds, and public official bonds. The SBA guarantees certain contract bonds for eligible small businesses.

The surety generally evaluates the principal's character, capacity, and financial strength before issuing a bond. If the principal defaults and a valid claim is made, the surety investigates and may pay or arrange completion up to the bond penalty.

Surety bond vs. related terms

Example

A money transmitter must post a surety bond as a condition of a state license. It applies to a surety, which reviews its financials and issues the bond in the required amount for an annual premium. If the company later fails to meet its obligations to customers and a valid claim is made, the surety may pay, and then look to the company for reimbursement.

A second example

A hypothetical contractor is hired to build out a facility for a public agency owner. The contract requires a performance bond and a payment bond. The surety reviews the contractor's financial statements, work history and capacity, then issues both bonds for a premium. If the contractor later defaults, the surety may investigate and either pay or arrange for the work to be completed, up to the bond amount, and then look to the contractor and any indemnitors for reimbursement.

What to watch for

Questions to ask before you apply

Common mistakes

Why it matters for technology, AI, fintech and digital-asset companies

State money transmitter, lending, and other licenses often require surety bonds, so fintech and digital-asset companies may need them to operate in a state. Government and infrastructure contractors, including data center builders, also encounter contract bonds. Requirements vary by state and regulator, so confirm them for each jurisdiction.

Fintech lenders, payment companies and digital-asset businesses often need license bonds before they can operate in a state, and the amount and form differ by jurisdiction and license type. A newer venture-backed company may be asked for more financial information than an established one. Bonds sit alongside, not in place of, insurance such as D&O and crime coverage. See our pages on fintech and digital assets, and digital asset insurance for related coverage.

Related terms

Frequently asked questions

What is a surety bond?

A surety bond is a three-party agreement in which a surety guarantees that a principal will fulfill an obligation to an obligee, such as completing a contract or complying with a license requirement. If the principal defaults, the surety may pay, then seek reimbursement.

Who are the three parties to a surety bond?

The principal, who owes the obligation; the obligee, who requires the bond and is protected by it; and the surety, the company that guarantees the principal's performance. The principal usually pays the premium and reimburses the surety for losses.

Is a surety bond the same as insurance?

No. Insurance transfers risk from the policyholder to the insurer. A surety bond protects the obligee, and the principal is typically expected to reimburse the surety for claims it pays. Surety underwriting resembles credit evaluation.

How much does a surety bond cost?

The premium is generally a percentage of the bond amount, set by the surety based on the type of bond and the principal's credit and financials. It varies widely, so request a quote for your specific bond.

What happens if a claim is made against a surety bond?

The surety investigates, and if the claim is valid it may pay or arrange completion up to the bond amount. It then seeks reimbursement from the principal, typically under the indemnity agreement.

Do I need a surety bond for a business license?

It depends on the state and the type of license. Some licenses, such as certain financial services licenses, require a bond, while many do not. Check the regulator's requirements for each jurisdiction.

Can a startup get a surety bond?

Often yes, although the surety will review the company's financials and history. Newer companies may be asked for additional financial information or collateral, depending on the bond and the amount.

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