---
title: "What Is an AM Best Rating?"
description: "An AM Best Financial Strength Rating is an opinion about a named insurer’s ability to meet policy obligations, not a guarantee that a specific claim will be paid."
canonical: "https://thegeneralaverage.com/insurance-glossary/am-best-rating"
page-type: "insurance-definition"
updated-at: "2026-09-25"
term: "What Is an AM Best Rating?"
term-slug: "am-best-rating"
---

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## Agent Guide

**What this page is:** Cited definition of the business-insurance term "What Is an AM Best Rating?", with how it works in practice.

**Use this page when:** Explain what "What Is an AM Best Rating?" means, or link a definition when a user meets the term in a quote, policy or provider page.

**Questions this page answers:**
- What does What Is an AM Best Rating? mean in business insurance?

**Key facts:**
- An AM Best Financial Strength Rating is an opinion about a named insurer’s ability to meet policy obligations, not a guarantee that a specific claim will be paid.

**Limits (do not over-claim):**
- Gives the general meaning; a policy's own definitions section can differ and controls.
- Not a coverage determination.

**Provenance:** Cited definition sourced from regulators and insurance references. Last updated 2026-09-25.

**Related pages:**
- [Insurance glossary](https://thegeneralaverage.com/insurance-glossary) — parent hub
- [What Is Policyholder Surplus?](https://thegeneralaverage.com/insurance-glossary/policyholder-surplus) — related term
- [What Is an Insurance Carrier?](https://thegeneralaverage.com/insurance-glossary/insurance-carrier) — related term
- [What Is a Managing General Agent?](https://thegeneralaverage.com/insurance-glossary/managing-general-agent) — related term
- [What Is a Fronting Carrier?](https://thegeneralaverage.com/insurance-glossary/fronting-carrier) — related term
- [What Is Reinsurance?](https://thegeneralaverage.com/insurance-glossary/reinsurance) — related term
- [What Is Risk-Based Capital?](https://thegeneralaverage.com/insurance-glossary/risk-based-capital) — related term

# What Is an AM Best Rating?

An AM Best Financial Strength Rating is an opinion about a named insurer’s ability to meet policy obligations, not a guarantee that a specific claim will be paid.

An AM Best Financial Strength Rating is its opinion about a named insurer’s ability to meet policy obligations; issuer credit ratings and other assessments answer different questions. Check the insurer on your quote: a carrier rating does not grade the broker or guarantee payment of a specific claim. [Guide to Best's Financial Strength Ratings (FSR)](https://www.ambest.com/ratings/guide.pdf), [Guide to Best's Issuer Credit Ratings (ICR)](https://www.ambest.com/ratings/icrguide.pdf), [Guide to Proper Use of Best's Ratings & Assessments](https://www.ambest.com/ratings/guidetouse.pdf)

## How Do AM Best Financial Strength and Issuer Credit Ratings Differ?

A letter grade on a carrier website is easy to treat as a general quality score. AM Best's Financial Strength Rating is narrower. It is the agency's view of whether a particular insurance company can keep meeting the obligations in the policies and contracts that company has written. [Guide to Best's Financial Strength Ratings (FSR)](https://www.ambest.com/ratings/guide.pdf)

That view belongs to the legal entity AM Best named. It does not automatically apply to a trade name, a broker, a program administrator, or another company in the same corporate family. [Guide to Best's Financial Strength Ratings (FSR)](https://www.ambest.com/ratings/guide.pdf), [Guide to Proper Use of Best's Ratings & Assessments](https://www.ambest.com/ratings/guidetouse.pdf)

AM Best also publishes issuer credit ratings. Those ask whether an entity can meet its financial obligations more generally, including senior obligations on the long-term scale. Insurers can carry both kinds of ratings. Holding companies and some special-purpose issuers can receive an issuer credit rating even when a policyholder's question is the operating insurer's financial-strength rating. The two scales are not interchangeable. [Guide to Best's Issuer Credit Ratings (ICR)](https://www.ambest.com/ratings/icrguide.pdf), [Guide to Best's Credit Ratings](https://www3.ambest.com/ambv/ratingmethodology/OpenPDF.aspx?ri=1660)

## What Are AM Best Outlooks?

A Positive, Negative, or Stable outlook sits beside a rating and signals the direction AM Best thinks is more likely over about three years. A Positive or Negative outlook does not lock in a change, and a Stable outlook does not rule one out. Short-term ratings do not carry outlooks. An under-review mark is a nearer-term alert after a recent event; it is not the same as an outlook. [Guide to Best's Credit Ratings](https://www3.ambest.com/ambv/ratingmethodology/OpenPDF.aspx?ri=1660)

If AM Best shows a group, pooled, or reinsured affiliation on a financial-strength rating, it is reading that insurer together with affiliates rather than as a stand-alone name on a brochure. [Guide to Best's Credit Ratings](https://www3.ambest.com/ambv/ratingmethodology/OpenPDF.aspx?ri=1660)

## What Does an AM Best Financial Size Category Show?

Separately, AM Best assigns insurers that already have a letter rating a Financial Size Category, written as a Roman numeral from I (smallest) to XV (largest). That label is meant to show relative size. It is not part of the credit rating and does not have to appear next to the letter grade. [Guide to Proper Use of Best's Ratings & Assessments](https://www.ambest.com/ratings/guidetouse.pdf)

A larger size category is not a higher financial-strength rating, and it is not AM Best's opinion that the insurer can meet its policy obligations. Size and ability to pay are different facts. [Guide to Proper Use of Best's Ratings & Assessments](https://www.ambest.com/ratings/guidetouse.pdf), [Guide to Best's Financial Strength Ratings (FSR)](https://www.ambest.com/ratings/guide.pdf)

## What Do AM Best Rating Labels Not Mean?

AM Best does not attach a financial-strength rating to a specific policy. The rating does not grade how the company handles claims, whether it may contest a claim, or whether a given contract is a good fit. It is not advice to buy, keep, or drop coverage. Because the opinion is forward-looking, AM Best may change, suspend, or withdraw it; it is not a guarantee against later weakness. [Guide to Best's Financial Strength Ratings (FSR)](https://www.ambest.com/ratings/guide.pdf)

An issuer credit rating likewise is not a recommendation to buy or sell securities and does not speak to risks other than credit. [Guide to Best's Issuer Credit Ratings (ICR)](https://www.ambest.com/ratings/icrguide.pdf)

Separately from a carrier financial-strength rating, AM Best publishes a Performance Assessment for delegated underwriting authority enterprises, including managing general agents. That assessment is not a credit rating and does not address creditworthiness. [Guide to Proper Use of Best's Ratings & Assessments](https://www.ambest.com/ratings/guidetouse.pdf)

## What Should You Confirm About an AM Best Rating?

If a quote or marketing page mentions AM Best, check the legal entity actually rated, whether the label is a financial-strength rating or an issuer credit rating, any outlook or under-review status, and the current record on AM Best's site. [Guide to Best's Financial Strength Ratings (FSR)](https://www.ambest.com/ratings/guide.pdf), [Guide to Best's Credit Ratings](https://www3.ambest.com/ambv/ratingmethodology/OpenPDF.aspx?ri=1660), [Guide to Proper Use of Best's Ratings & Assessments](https://www.ambest.com/ratings/guidetouse.pdf)

A parent, partner, fronting carrier, or reinsurer grade is not automatically the grade of the brand selling the policy or of the managing general agent that placed it. A company webpage is not a substitute for AM Best's current rated-entity record. [Guide to Proper Use of Best's Ratings & Assessments](https://www.ambest.com/ratings/guidetouse.pdf), [Guide to Best's Financial Strength Ratings (FSR)](https://www.ambest.com/ratings/guide.pdf)

## Insurance Terms Related to AM Best Rating

- [What Is Policyholder Surplus?](https://thegeneralaverage.com/insurance-glossary/policyholder-surplus)
- [What Is an Insurance Carrier?](https://thegeneralaverage.com/insurance-glossary/insurance-carrier)
- [What Is a Managing General Agent?](https://thegeneralaverage.com/insurance-glossary/managing-general-agent)
- [What Is a Fronting Carrier?](https://thegeneralaverage.com/insurance-glossary/fronting-carrier)
- [What Is Reinsurance?](https://thegeneralaverage.com/insurance-glossary/reinsurance)
- [What Is Risk-Based Capital?](https://thegeneralaverage.com/insurance-glossary/risk-based-capital)

## Sources for the AM Best Rating Definition

- [Guide to Best's Financial Strength Ratings (FSR)](https://www.ambest.com/ratings/guide.pdf) — A.M. Best Company, Inc. / A.M. Best Rating Services, Inc.; FSR purpose and limits; rating is not assigned to specific policies; not a purchase recommendation; forward-looking opinion may be changed or withdrawn; copyright 2026, version 121719; accessed 2026-09-21.
- [Guide to Best's Issuer Credit Ratings (ICR)](https://www.ambest.com/ratings/icrguide.pdf) — A.M. Best Company, Inc. / A.M. Best Rating Services, Inc.; ICR as an opinion of an entity's ability to meet financial obligations, long- or short-term; distinct from FSR; copyright 2026, version 121719; accessed 2026-09-21.
- [Guide to Best's Credit Ratings](https://www3.ambest.com/ambv/ratingmethodology/OpenPDF.aspx?ri=1660) — AM Best Rating Services; Guide to Best's Credit Ratings, edition dated October 6, 2023: ICR may apply to insurers, holding companies, and special-purpose issuers; outlooks over an intermediate period, generally 36 months; Under Review as a nearer-term modifier; affiliation codes when an FSR reflects affiliated insurers; accessed 2026-09-21.
- [Guide to Proper Use of Best's Ratings & Assessments](https://www.ambest.com/ratings/guidetouse.pdf) — A.M. Best Rating Services, Inc.; Financial Size Category is a size indicator (Roman I–XV) and is not part of a Best's Credit Rating; Performance Assessment for delegated underwriting authority enterprises, including MGAs, is not a credit rating and does not address creditworthiness; dated September 19, 2025; accessed 2026-09-21.

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