---
title: "What Is Risk-Based Capital?"
description: "How risk-based capital sets a regulatory minimum, and why it is not a ranking or an AM Best rating."
canonical: "https://spot.insure/insurance-glossary/risk-based-capital"
page-type: "insurance-definition"
updated-at: "2026-09-21"
verified-at: "2026-09-21"
entities: ["Spot"]
---

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# What Is Risk-Based Capital?

How risk-based capital sets a regulatory minimum, and why it is not a ranking or an AM Best rating.

Risk-based capital is a statutory minimum based on an insurer's size and risk. Regulators use it to identify potentially weakly capitalized companies; it is not meant as a way to rank insurers. [Insurance Topics | Risk-Based Capital](https://content.naic.org/insurance-topics/risk-based-capital)

## What RBC Measures

RBC asks whether an insurer holds a statutory minimum of capital in proportion to its size and the risk in its assets and operations. That minimum is a regulatory tool, not necessarily all the capital the company needs for its own objectives. [Insurance Topics | Risk-Based Capital](https://content.naic.org/insurance-topics/risk-based-capital)

Sufficiency is the ratio of total adjusted capital to Authorized Control Level RBC, including basic operational risk. The NAIC RBC framework does not require intervention at or above 300%. Between 200% and 300%, a trend test can trigger action. Below 200%, responses range from action plans to taking over management. Below 70%, a regulator is obligated to take over management. Life, property/casualty, and health companies use different formulas. [Insurance Topics | Risk-Based Capital](https://content.naic.org/insurance-topics/risk-based-capital), [Glossary of Insurance Terms](https://content.naic.org/glossary-insurance-terms)

## What It Does Not Prove

RBC is not a stand-alone solvency test and is not intended as a way to rank insurers. It is not an AM Best financial-strength rating, not policyholders' surplus, and not a prediction that claims will be paid. A life figure is not interchangeable with a property/casualty figure. [Insurance Topics | Risk-Based Capital](https://content.naic.org/insurance-topics/risk-based-capital)

## What to Confirm

If a ratio is lawfully public, record the legal entity, formula type, definition used, as-of date, and source. Do not manufacture a ratio, and do not treat silence as a finding that capital is inadequate. [Insurance Topics | Risk-Based Capital](https://content.naic.org/insurance-topics/risk-based-capital)

## Related terms

- [What Is Policyholder Surplus?](/insurance-glossary/policyholder-surplus)
- [What Is an AM Best Rating?](/insurance-glossary/am-best-rating)
- [What Is an Insurance Carrier?](/insurance-glossary/insurance-carrier)

## Sources

- [Insurance Topics | Risk-Based Capital](https://content.naic.org/insurance-topics/risk-based-capital) — National Association of Insurance Commissioners; Issue and Background last updated 06/30/2026: statutory minimum based on size and risk; not necessarily full capital needed; not intended to rank insurers; purpose is to identify potentially weakly capitalized companies; capital sufficiency is total adjusted capital to Authorized Control Level RBC including Basic Operational Risk; intervention bands including 300%, 200%, and 70%; accessed 2026-09-21.
- [Glossary of Insurance Terms](https://content.naic.org/glossary-insurance-terms) — National Association of Insurance Commissioners; Authorized Control Level Risk Based Capital: theoretical amount of capital plus surplus an insurance company should maintain; accessed 2026-09-21.

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