Underwriting
Underwriting is the process an insurer uses to evaluate a risk, decide whether to accept it, and determine how much coverage to offer and at what price. Underwriters review application information, loss history, and exposures before quoting terms.
Last updated October 13, 2026
How underwriting works
IRMI defines underwriting as determining whether to accept a risk and, if so, how much insurance to write on it and at what rate. The NAIC describes it as the way an insurer examines risks and decides an appropriate rate. The work is done by underwriters at the insurer, or by a managing general agent acting under authority the insurer has delegated.
For commercial insurance, the process usually runs as follows:
- A broker sends a submission with an application, financial information, a description of operations, and often loss runs.
- The underwriter reviews the risk, may ask follow-up questions, and may hold a call with management.
- The underwriter declines, or issues a quote with a limit, retention, premium, exclusions, and conditions.
- If the buyer accepts, the coverage is bound and the policy is issued. See binder.
Underwriting vs. related terms
- Underwriting vs. claims handling. Underwriting happens before coverage is issued. Claims handling begins after a loss is reported. See first notice of loss for how a claim starts.
- Underwriting vs. rating. Rating applies the insurer's rates and rules to produce a price. Underwriting also includes judgment about whether to accept the risk and on what terms.
- Underwriter vs. broker. The underwriter works for the insurer, or for an authorized MGA. A broker represents the buyer. See broker of record for how the broker relationship is designated.
- Admitted vs. non-admitted underwriting. Admitted carriers generally work within filed forms and rates, while non-admitted carriers often have more flexibility to tailor wording and price for unusual risks.
Example
A hypothetical Series A AI company applies for technology E&O and cyber coverage. It provides its application, a description of its product and customers, sample customer contracts, and details on security controls. The underwriter asks about limitation-of-liability language and prior incidents, then offers terms with a retention and certain exclusions. If material facts change before binding, the terms may change.
A second example
A hypothetical growth-stage company renews its directors and officers coverage after closing a new funding round, doubling its headcount and entering new markets. The underwriter asks about the financing, the board, any investor disputes or regulatory contacts and plans for further fundraising or a public offering. Based on the answers, the underwriter may adjust the retention, add or remove exclusions or change pricing. A clean, complete update from the company tends to make that conversation more straightforward.
What to watch for
- Answer application questions accurately and completely. Inaccurate or missing information can create problems at claim time.
- Underwriters differ in appetite. A declination from one carrier does not mean others will decline.
- Read the quote for subjectivities, which are conditions to complete before or after binding.
- Terms come from the underwriting review, so improvements in controls or contracts can influence what is offered.
- Underwriting is not the same as claims handling. Different teams handle each.
- Quotes may expire, so note the quote validity date and any deadlines to bind.
- Ask your broker to explain any change from the expiring terms, since renewal underwriting can shift.
How to prepare a stronger submission
- Complete the application. Answer every question accurately and sign where required.
- Describe operations clearly. Include products, customers, revenue, geographies and any planned changes.
- Provide current loss runs. Request loss runs from prior carriers early.
- Include supporting documents. Sample customer contracts, security controls summaries, financial statements and funding information are common requests.
- Be consistent across lines. Cyber, E&O and D&O applications often ask overlapping questions, and different answers can raise concerns.
- Disclose known circumstances. Incidents or potential claims should be raised, since policies commonly exclude known matters.
- Respond to follow-ups quickly. Quotes have expiry dates and delays can cost options.
Why it matters for technology, AI, fintech and digital-asset companies
Underwriters of technology, cyber, and AI-related risks commonly ask about security controls, customer contract terms, how models or products are used, and funding and growth. Preparing clear answers before submission helps the review go smoothly. See cyber and technology E&O and AI liability.
Underwriters of AI-related risks often ask how models are trained and used, what human oversight exists and what customers rely on the outputs for. Fintech underwriters commonly ask about licenses, partner banks and how customer funds are held. Digital-asset underwriters typically focus on custody arrangements, key management and security controls. Venture-backed companies should also expect questions about funding, runway and growth plans. Our pages on fintech, digital assets and venture-backed startups give general background, and digital asset insurance and AI liability insurance explain the coverages involved.
Related terms
Frequently asked questions
What is underwriting in insurance?
Underwriting is the process an insurer uses to evaluate a risk, decide whether to accept it, and determine how much coverage to offer and at what price. Underwriters review application information, loss history, and exposures before quoting terms.
What do underwriters look at for commercial insurance?
Typically the application, description of operations, financial information, loss history, contracts, risk controls, and limits requested. The specifics depend on the line of coverage. For technology and cyber risks, underwriters often focus on security practices and customer contract terms.
What is the difference between an underwriter and a broker?
An underwriter works for the insurer or an authorized managing general agent and decides whether to offer coverage and on what terms. A broker represents the buyer, prepares the submission, negotiates, and helps place the coverage.
How long does underwriting take?
It varies by line, size, and complexity. Simple risks may be quoted quickly, while complex or high-limit programs can take longer, especially if the underwriter needs more information. Submitting complete, accurate information usually helps avoid delays.
Why do underwriters ask so many questions?
Underwriters use the answers to judge how likely and how severe a loss could be, and whether the company's controls and contracts are in line with what the insurer is willing to cover. Detailed answers can help them quote with fewer exclusions.
Can an underwriter change coverage after binding?
Generally the terms are set at binding, though a binder can be subject to conditions that must be met afterward. Material misstatements can create coverage problems, and mid-term changes usually require agreement between the parties.
What is a subjectivity in an insurance quote?
A subjectivity is a condition the insurer attaches to a quote or binder, such as providing a signed application or a security document, that must be satisfied before or after binding. Missing one can affect the coverage, so track each one.
What happens if an underwriter declines my application?
A declination from one insurer does not mean others will decline, since appetite varies. Your broker can ask why, address gaps, and approach other admitted or surplus lines insurers.
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