# Solvency rules that decide if an insurer can pay claims
In 2022, Colorado regulators seized control of Bankers Life of Louisiana's affiliated companies and, more famously, Florida's property insurance market watched several carriers (including Southern Fidelity and FedNat) get placed into liquidation or run off after hurricane losses blew through their capital cushions. Policyholders who thought they had coverage suddenly had claims routed through state guaranty funds instead. The companies did not fail because they were poorly run in every respect. They failed because they did not hold enough capital relative to the risk they had written, and regulators eventually forced the issue. This lesson explains the machinery that is supposed to catch that problem before policyholders get hurt.
Insurance is a promise to pay later for money collected now. A life insurer collects premiums for decades before paying a death claim. A property insurer collects premiums all year and then faces a hurricane season that can wipe out several years of profit in a week.
Because the payout is deferred and uncertain, insurers could theoretically underprice risk, book profits early, and leave policyholders exposed when claims come due. Solvency regulation exists to prevent that. Unlike banking, insurance in the United States is regulated primarily at the state level, not federal. There is no single US insurance regulator equivalent to the Federal Reserve. Instead, each state's Department of Insurance (DOI) licenses insurers and enforces solvency rules, coordinated through the National Association of Insurance Commissioners (NAIC), a standard-setting body made up of the 50 state regulators plus DC and US territories.
The NAIC's central tool is Risk-Based Capital (RBC)
RBC is not a flat percentage of premiums. It is calculated line by line: a bond portfolio heavy in speculative-grade debt requires more capital backing than one in Treasuries; a book of hurricane-exposed Florida homes requires more capital than a book of Midwest auto policies. The output is compared to the insurer's actual capital and surplus, producing an RBC ratio.
The NAIC sets action levels tied to that ratio (figures are the well-established NAIC framework, current as of 2025 to 2026):
Worked example (simplified): Suppose an insurer's RBC formula calculates that, given its mix of business, it needs $50 million of capital to be adequately capitalized at the 100% authorized control level threshold. If the company actually holds $75 million in capital and surplus, its RBC ratio is 75 / 50 = 150%, right at the Company Action Level. That triggers a mandatory filing explaining how management will improve the ratio, before the company gets anywhere near seizure territory. This is the mechanism that let Florida regulators intervene in weakened property insurers before, in some cases, full liquidation.
You can see the actual RBC instructions and filing forms on the NAIC's public RBC resource page.
RBC is a snapshot calculated from an insurer's own filed numbers. To verify those numbers are honest and complete, states conduct financial examinations, on-site audits of an insurer's books, reserving practices, reinsurance arrangements, and internal controls.
Under the NAIC's accreditation standards, every state must examine domestic insurers (companies chartered in that state) at least once every five years, and more frequently if RBC or other early-warning signals (like the NAIC's Insurance Regulatory Information System, IRIS, a set of financial ratio tests) flag a problem. Examiners can and do compel more frequent exams for insurers showing stress, exactly what happened to several Florida and Louisiana carriers after 2020 to 2022 hurricane losses triggered reserve deficiencies.
Financial exams also check reserve adequacy: whether the insurer has set aside enough money to pay claims it already knows about or should expect (called loss reserves). Under-reserving is one of the most common precursors to insolvency, because it lets a struggling insurer report profits and pay dividends while quietly digging a hole.
Two structural rules reinforce RBC and exams:
Reinsurance credit rules. Insurers often transfer part of their risk to reinsurers (insurers for insurers) to reduce their own capital needs. Regulators only give an insurer "credit" for that risk transfer (letting it hold less capital) if the reinsurer meets NAIC certification and collateral standards. This stops insurers from appearing well-capitalized on paper by ceding risk to an undercapitalized or offshore reinsurer that might not actually pay.
Holding Company Act oversight. Most insurers sit inside corporate groups. The NAIC's Insurance Holding Company System Regulatory Act (adopted, with variations, into state law nationwide) requires groups to file an ORSA (Own Risk and Solvency Assessment), the insurer's own internal analysis of its risk and capital adequacy, and lets regulators examine the whole group, not just the licensed insurance entity, to catch risk hidden in an affiliate or parent company.
If an insurer becomes insolvent despite all of this, state guaranty associations step in to pay covered claims, funded by assessments on other insurers operating in that state, up to statutory limits (commonly $300,000 for life insurance death benefits and often $500,000 to $1,000,000 for certain property and casualty claims, limits vary significantly by state and are set by state statute, not federal law). This is why the RBC and exam system matters so much: guaranty funds are a backstop, not a substitute for solvency regulation, and they do not cover every policyholder loss in full.
For comparison, the European Union runs an analogous but distinct regime called Solvency II, which sets a risk-based Solvency Capital Requirement (SCR) for insurers across EU member states, enforced by national regulators under guidance from the European Insurance and Occupational Pensions Authority (EIOPA). The concept (capital scaled to actual risk, not a flat percentage) is similar to US RBC, but the formulas, governance requirements, and reporting (including public Solvency and Financial Condition Reports) differ substantially. A professional working across US and EU insurance markets needs to know these are parallel but non-interchangeable systems.
Vérification des acquis
1. Why does insurance require solvency regulation in a way that is structurally similar to banking's concerns, according to the core rationale in the lesson?
2. What is the fundamental structural difference between US insurance regulation and US banking regulation?
3. An insurer holds a large amount of capital in absolute dollar terms, but has written a disproportionately large volume of high-risk policies relative to that capital. Under the logic of Risk-Based Capital (RBC), how would regulators most likely view this insurer?
4. Select ALL correct answers about why the Florida carriers described in the lesson (e.g., those placed into liquidation after hurricane losses) failed.
Sélectionnez toutes les réponses correctes.
5. Select ALL correct answers about the role of the NAIC in US insurance solvency regulation.
Sélectionnez toutes les réponses correctes.
If you work in underwriting, finance, or compliance at an insurer, RBC is not a back-office abstraction. Pricing decisions, reinsurance purchases, and even which new products get approved are shaped by their RBC impact. A line of business that looks profitable on a pure loss-ratio basis can still get shelved if it consumes too much risk-based capital relative to the capital it generates.
If you work in investment, distribution, or partnerships, insurer RBC ratios and exam findings (many of which are public record through state DOI websites and NAIC filings) are a genuine due diligence tool: a declining RBC trend is an early warning sign before a rating downgrade or public failure.
🎬 [VIDEO: "How Insurance Companies Fail (and What Regulators Do About It)" - https://www.youtube.com/results?search_query=how+insurance+companies+become+insolvent+NAIC+RBC - search for NAIC or insurance-regulator explainer content covering RBC action levels and receivership, useful as a visual walkthrough of the concepts above]