Bermuda Reinsurance Through 2026: Pillar Two, Cat Capacity, and the Florida Pivot

The 230 billion dollar hub and the BMA capital stack #

Bermuda's commercial reinsurance sector reported gross premiums written of 230 billion dollars on the BMA's 2024 statistical compilation, total assets above 1.0 trillion dollars, and statutory capital and surplus near 270 billion dollars across long-term and general business carriers. Class 4 general business reinsurers, the segment that writes property catastrophe, hold roughly 120 billion dollars of equity and dominate the global retrocession market. Bermuda's share of US peak peril cessions exceeds half on most cedant placement records, and the island clears about a third of total worldwide property and casualty reinsurance premium based on AM Best and S&P aggregates triangulated against BMA returns.

The regulatory architecture is the Bermuda Solvency Capital Requirement, BSCR, an internal model regime that the European Commission has recognised as Solvency II equivalent since 2016 and that the US National Association of Insurance Commissioners treats as a qualified jurisdiction. BSCR uses risk-based modules covering catastrophe, market, credit, premium, reserve, and operational risk, with a 99.5 percent Tail Value at Risk calibration over one year. The BMA also runs the Commercial Insurer Risk Assessment, CIRA, that pairs the BSCR with stress test overlays. Compared with Lloyd's, where the Society's central solvency aggregation runs through the Society of Lloyd's capital and PRA Solvency II rules, Bermuda's framework is more model-permissive on cat scenarios and less prescriptive on counterparty concentration, which has historically allowed Class 4 carriers to deploy capital faster against post-event hardening cycles.

Pillar Two: from zero to 15 percent on January 1, 2025 #

The Bermuda Corporate Income Tax Act 2023, certified by the Bermuda Government in December 2023, replaced the historical zero corporate income tax regime with a 15 percent statutory rate on multinational enterprise groups with consolidated revenue above 750 million euros, mirroring the OECD Pillar Two GloBE rules and the Inclusive Framework Model Rules of December 2021. The rate became operative for fiscal years beginning on or after January 1, 2025. The Act introduces a Bermuda Income Tax Agency, qualified refundable tax credits, and a substance-based income exclusion that mirrors the GloBE carve-out for tangible assets and payroll. The Bermuda Government estimates net annual receipts in the range of 750 million to 1.5 billion dollars depending on group profitability, and recycles a portion through a Bermuda Economic Investment Tax Credit aimed at climate adaptation and digital infrastructure.

For the reinsurance sector, the immediate accounting impact appeared in 2024 reporting through deferred tax asset recognition. Bermuda Class 4 carriers booked DTAs reflecting historic tax basis differences before the act took effect, then began accruing a 15 percent current charge from Q1 2025. The combined effect through 2025 reduced sector net income on a constant volume basis by an order of 10 to 12 percentage points, partially offset by higher US Treasury yields on investment portfolios that average 65 to 70 percent fixed income. The longer-term question is whether the post-tax return on equity can hold the 15 to 18 percent range that justified the Bermuda Triangle capital cycle of the prior decade. Cedant rate-on-line increases at the January and June 2025 renewals, plus higher attachment points on US wind and quake layers, suggest the market re-priced to absorb the wedge.

Helene, Milton, and the LA wildfires: the 2024 to 2025 loss complex #

Hurricane Helene made landfall on Florida's Big Bend coast on September 26, 2024 as a Category 4 storm and produced inland flooding through Georgia, the Carolinas, and Tennessee. The federal storm surge zone exceeded historic records along Apalachee Bay, and Asheville, North Carolina recorded catastrophic riverine flooding. Industry insured loss estimates from Swiss Re Institute, Aon Impact Forecasting, and Verisk PCS clustered in an 8 to 14 billion dollar range, with private flood and National Flood Insurance Program exposure adding several billion of uninsured economic loss. Total economic loss estimates ran above 50 billion dollars.

Hurricane Milton followed in October 2024, making landfall near Siesta Key on October 9 as a Category 3 storm with a sustained 120 mile per hour wind field and an unusually long fetch across Tampa Bay. Industry insured loss estimates ranged from 17 to 24 billion dollars on Aon, Karen Clark, and Moody's RMS first estimates, with reinsurance attachment crossed on most catastrophe programs and Florida Hurricane Catastrophe Fund recoveries triggered. The Florida Citizens Property Insurance Corporation reported a sharp uptick in claims and accelerated its takeout program through the OIR.

On January 7, 2025 the Eaton fire in Altadena and the Palisades fire in the Pacific Palisades and Malibu corridor ignited under hurricane-force Santa Ana winds. Cal Fire reported more than 16,000 destroyed structures across the two fires, and industry insured loss estimates from Verisk, Karen Clark, and Moody's RMS converged on a 35 to 50 billion dollar range. This is the largest US wildfire event by insured loss in recorded data. California FAIR Plan exposure rose sharply, and the California Department of Insurance triggered the FAIR Plan assessment mechanism. Reinsurance recoveries to FAIR ceded contracts and Lloyd's syndicates exceeded 1.5 billion dollars, with material recoveries against Bermuda retrocession layers.

Cat bonds at 50 billion: capital diversification and the Florida concentration #

The catastrophe bond market reached an outstanding notional above 50 billion dollars by year-end 2024 on Artemis and Lane Financial running compilations, the highest figure in the market's history. The 144A Rule 144A private placement structure, almost always domiciled in Bermuda special purpose insurers under the Insurance Amendment Act 2008 framework, accounted for the bulk of issuance. New issuance in 2024 exceeded 17 billion dollars across a record number of transactions, and primary spreads compressed from 2023 wides as investor demand rebuilt after the strong 2023 returns.

Peril concentration remains heavy on US wind, with Florida named storm representing roughly a third of outstanding limit on a per-occurrence and aggregate basis. California earthquake, US multi-peril, and Japan typhoon make up most of the balance. Investor base is concentrated in dedicated insurance-linked securities funds based in Bermuda and the Cayman Islands, including Stone Ridge Asset Management, Fermat Capital, Twelve Capital, Schroders Capital, LGT, and Securis, plus pension and sovereign wealth allocators that allocate through these managers. The Cayman Islands has continued to grow as a domicile for ILS funds and segregated portfolio companies, with industry compilations citing more than 21,000 active reinsurance and investment funds in Cayman, but Bermuda remains the dominant special purpose insurer domicile for the cat bond issuing vehicles themselves.

The Bermuda Triangle cohort and the listed group complex #

Across the 2023 to 2025 hardening cycle, Bermuda absorbed roughly 18 billion dollars of new dedicated reinsurance capital through a mix of sidecar issuance, Class 4 capital raises, and side-pocket extensions. RenaissanceRe completed the acquisition of Validus Re from American International Group in November 2023 for 2.985 billion dollars, integrating roughly 3 billion dollars of premium into its DaVinci, Vermeer, and Upsilon vehicles. Everest Group raised additional Class 4 capital and grew its Bermuda reinsurance gross written premium above 11 billion dollars on its 2024 10-K. Arch Capital, Axis Capital, and Lancashire Holdings extended sidecar partnerships with pension and sovereign capital. Hiscox Re and ILS, headquartered in Bermuda for the reinsurance and ILS book, reached 2.3 billion dollars of assets under management on its 2024 disclosures.

Hamilton Insurance Group, the holding company of Hamilton Re and Hamilton Global Specialty, completed its initial public offering on the New York Stock Exchange on November 9, 2023 at 15 dollars per share. The stock cleared 20 dollars by Q1 2025 on strong combined ratios, growth in Lloyd's Syndicate 4000 underwriting, and visible reinsurance margin expansion through the post-Helene and post-Milton renewals. AM Best ratings across the Class 4 cohort cluster at A or A plus, S&P ratings at A plus to AA minus, with a tightening of outlook revisions in early 2025 reflecting the LA wildfire loss absorption. The Bermuda Triangle pattern, where capital arrives in volume after a clearing event and exits gradually as rates soften, held through the cycle, with the structural change being a higher floor on rates set by climate loss frequency and Pillar Two tax friction.

Implications: Florida residual market, climate adaptation finance, and the new tax facility #

Florida Citizens Property Insurance Corporation, the state-sponsored residual market, has run a takeout cycle through 2024 and 2025 that reduced its policy count from a peak above 1.4 million in late 2023 toward 0.85 million by Q1 2025. The Florida Hurricane Catastrophe Fund, the FHCF, retained capacity of roughly 17 billion dollars at the start of the 2024 season and absorbed material recoveries from Helene and Milton at the second event layer. The FHCF re-set its premium and contract terms for 2025, raising rates on participating insurers and expanding its private market reinsurance buy. Bermuda Class 4 carriers and dedicated cat bond vehicles supplied a meaningful share of that buy, with three privately placed cat bonds and several traditional placements in 2024 and 2025.

Climate finance and reinsurance integration is the next frontier. The Caribbean Catastrophe Risk Insurance Facility, CCRIF SPC, domiciled in Bermuda since 2014, paid roughly 84 million dollars of policy disbursements after Hurricane Beryl in July 2024, the largest single payout in the facility's history, and its membership includes 19 Caribbean and 4 Central American countries plus three Caribbean utilities. The African Risk Capacity facility and the Pacific Catastrophe Risk Insurance Company are following similar parametric architectures, with Bermuda special purpose insurers underwriting most of the structures. Sovereign and multilateral parametric coverage represents a small fraction of total Bermuda capacity today, but it is the highest-growth segment.

The combined effect of the Pillar Two 15 percent rate, the climate loss complex, and the Bermuda Government's policy choice to recycle tax receipts into local infrastructure reshapes the island's reinsurance economics. The 2026 question is whether post-tax return on equity at the Class 4 level holds above the 15 percent threshold that historically justified capital deployment. Early 2025 and 2026 renewal data, combined with rate-on-line increases on US peak peril layers and a structurally higher attachment in cat bond and sidecar structures, suggest the answer is yes, conditional on no third consecutive year with insured natural catastrophe losses above 140 billion dollars. The risk is climate path dependence, not tax architecture.

Sources #

• Bermuda Monetary Authority Annual Report and Statistical Returns
• Bermuda Government Corporate Income Tax Act 2023 and CIT Agency Guidance
• Association of Bermuda Insurers and Reinsurers (ABIR) Industry Reports
• OECD Pillar Two GloBE Rules and Implementation Framework
• Reinsurance Association of America (RAA) Quarterly Underwriting Reports
• AM Best Reinsurance Market Briefings and Class 4 Composite
• S&P Global Reinsurance Highlights 2024 and 2025
• Artemis Catastrophe Bond and ILS Market Deal Directory
• RenaissanceRe Holdings Annual Report on Form 10-K and Validus Acquisition Filings
• Everest Group Annual Report on Form 10-K
• Arch Capital Group Annual Report on Form 10-K
• Hamilton Insurance Group Form S-1 and Annual Report on Form 10-K
• Hiscox Group Annual Report and Bermuda ILS Disclosures
• Lancashire Holdings Annual Report
• Florida Citizens Property Insurance Corporation Financial Reports
• Florida Hurricane Catastrophe Fund Reports and Reinsurance Disclosures
• California Department of Insurance Wildfire Claims and FAIR Plan Data
• Swiss Re Institute Sigma Natural Catastrophe Reports
• Aon Impact Forecasting Catastrophe Insight
• CCRIF SPC Annual Report and Beryl 2024 Payout Disclosure