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In mid-July, the regulators reviewing the first filings under Actuarial Guideline 55 (AG 55) said they had come to "no firm conclusions yet regarding reserve adequacy." Days later, on July 27, the chair of the NAIC's Financial Condition (E) Committee sent a referral saying "many state insurance regulators believe this risk warrants immediate attention," and directed work on a new capital charge for life reinsurance placed outside a short list of recognized jurisdictions.

That gap is the story of AG 55's first year. Regulators have not concluded that offshore reserves are inadequate. They have concluded they cannot afford to wait to find out. For anyone who prices, values, audits or buys a reinsured block, the first question is no longer "what does the treaty say?" It is "where does the reinsurer sit, and what will that cost us?"

Below: the machine in plain language, what AG 55 requires, what its first year revealed, and how Bermuda, the Cayman Islands and U.S. regulators are repositioning. Property and casualty (P&C) and health actuaries should read on too. The capital-and-jurisdiction logic is spreading, and some of the tools regulators are now reaching for come straight from the P&C playbook.

Start with a U.S. life insurer selling fixed annuities. The policyholder hands over a lump sum today in exchange for guaranteed growth or income later. The insurer's job is to invest that money well enough to meet the guarantee and earn a margin. Traditionally, the insurer held the assets itself, mostly investment-grade bonds, and reserved for the liability on its own books under U.S. statutory rules.

Over the low-rate years, a different model took hold. Private equity firms and other alternative asset managers recognized that a life insurer is, in effect, a permanent pool of long-dated capital. Own or partner with one and you gain a stable asset base to manage, plus fee income on those assets. The Bank for International Settlements has described these firms as a driving force in channeling insurers' money into private markets, often through affiliated reinsurers.

The mechanism that moves the risk offshore is asset-intensive reinsurance. The U.S. insurer cedes an annuity block, through coinsurance or one of its variants such as modified coinsurance or funds withheld, to a reinsurer that is often in Bermuda and often affiliated with the same asset manager. The economics of the business, and usually the investment decisions on its assets, now sit with the reinsurer, under a regime that can value private credit, structured products and other less liquid holdings more favorably than U.S. statutory rules would. The reserve standing behind the same promises can fall substantially.

The scale is what changed the conversation. Fitch estimates that reserves ceded offshore by U.S. life insurers reached about $1.3 trillion at year-end 2025, nearly double the 2020 level. Bermuda holds about 85% of that. Roughly 72% of offshore cessions went to affiliates, and Fitch puts the share ceded to reinsurers affiliated with alternative asset managers at 44% in 2025, up from 30% in 2021. This stopped being a boutique structure some time ago.

Three concerns sit underneath the supervisory push, and they compound one another.

None of this makes the structure illegitimate. Bermuda's regime carries EU Solvency II equivalence and NAIC reciprocal-jurisdiction status, and its asset-intensive reinsurers reported a median solvency ratio of 259% at year-end 2023. The supervisory worry is narrower: U.S. regulators lost line of sight on whether the assets backing U.S. promises would hold up under stress once those assets moved to a regime they do not directly oversee. AG 55 is the attempt to restore it.

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Adopted by the NAIC in August 2025 and effective for year-end 2025 reporting, AG 55 requires a U.S. ceding insurer to perform asset adequacy testing on in-scope asset-intensive reinsurance: projecting the reinsured liabilities together with the assets supporting them under moderately adverse conditions, and reporting the results to its domestic regulator. Asset adequacy testing, long a fixture of the appointed actuary's world, now looks through the cession. Four design choices do most of the work.

The first memoranda were due April 1, 2026. By midyear, regulators had filings from 80 life insurers. Their early read, shared on a July call of the NAIC's Reinsurance Task Force, was that many annuity blocks carry lower reserves after transfer offshore or to captives than they would under U.S. statutory accounting, and that the open question is whether enough excess capital stands behind the difference. Detailed reviews of higher-priority companies are now under way, including tests of assumptions, valuations of assets without clear market prices and verification of the reinsurers' own balance sheets.

Industry experience lines up. A Milliman survey of 23 companies, 22 of them in scope, found that nearly all used cash-flow testing and most used actual asset portfolios. The harder problem was traceability: showing that the assets are the right ones, on the right basis, mapped to the right treaty. Fewer companies could explain why their results moved, and board-level governance of the process is still developing.

Then came the turn. The July 27 referral from the Financial Condition (E) Committee to the Life Risk-Based Capital (E) Working Group, adopted at the NAIC's August meeting, has two parts. The first is a recapture charge on ceded reserves and modified coinsurance balances held by reinsurers outside reciprocal jurisdictions, currently Bermuda, the EU, Japan, Switzerland and the UK. It is meant to reflect the capital a cedant would need if the business came back. The second aligns life risk-based capital (RBC) treatment of reinsurer credit risk with the P&C approach, so weaker reinsurers draw higher charges. The target is year-end 2027. The committee also asked for comment on tightening reporting thresholds for large reinsurance transactions, because regulators see far less of unaffiliated deals than of affiliated ones.

How much is at stake? Bridgeway Analytics told regulators in August that roughly $135 billion, about 4.7% of some $2.85 trillion in life reserve credit and modified coinsurance balances, sits with reinsurers outside reciprocal jurisdictions. That is small next to Bermuda. It is large for every jurisdiction competing to be Bermuda's alternative.

So a guideline built as a transparency tool produced, within a year, a capital proposal. AG 55 never needed to force reserves into the system. It gave regulators enough information to decide that where a liability sits should show up in capital.

Bermuda saw much of this coming and has spent several years tightening, deliberately. Every new block reinsurance deal by a Bermuda commercial long-term insurer needs prior BMA approval. Since 2024, so does any asset with credit exposure to an affiliate or connected party, with no minimum size and a look-through to the underlying counterparty. Scenario-based reserving and governance rules were tightened the same year, and a 15% corporate income tax for large multinational groups took effect in 2025. In January 2026, a new public disclosure regime began requiring long-term insurers to publish detailed asset and liability information, and the BMA dropped Egan-Jones from its list of recognized rating agencies, a signal that the quality of private-credit ratings is now a supervisory question.

The friction is visible. New commercial long-term registrations slipped from 13 in 2024 to 10 in 2025, back to roughly the island's long-run average, and S&P has noted that tougher reporting could lead cedants to explore other domiciles such as the Cayman Islands. But Bermuda is betting that credibility is worth more than a little friction, and the NAIC has just rewarded the bet. As a reciprocal jurisdiction, Bermuda would not attract the proposed recapture charge.

The Cayman Islands is the distant second. U.S. life and annuity reserves ceded there reached about $84 billion in 2025, up from $48 billion in 2021, riding the same record annuity sales that fed Bermuda. Its pitch, in the words of industry body Cayman Finance, is "regulatory flexibility with robust oversight, tax neutrality and proximity to the US market." Fitch is less flattering: it sees Cayman and similar domiciles as less robust and less transparent than Bermuda, and more open to regulatory arbitrage.

The recapture charge changes the math. In August, Cayman applied to the NAIC for qualified jurisdiction status, alongside Guernsey and South Korea, with property and casualty business to be considered first. Its premier has said there is "no plan B." But qualified status is a step, not a shield: the proposed charge applies outside reciprocal jurisdictions, and qualified status alone does not make a jurisdiction reciprocal. Until Cayman clears both hurdles, U.S. cedants using its reinsurers would carry a capital cost that Bermuda counterparties do not.

Cayman's reinsurers have pushed back, and their argument deserves a hearing. The Cayman International Reinsurance Companies Association argues that regulators chose a capital charge before establishing that a deficiency exists. Its chairman, Faramarz Romer, put it plainly: "Exposing implementation of a decision is not the same as exposing the decision itself." He also argues that "jurisdictional status cannot serve as a proxy for the likelihood of recapture," and that any charge should reflect each reinsurer's own financial strength. The American Academy of Actuaries' Reinsurance Work Group did not oppose a charge, but questioned its design, noting there have been "very few instances of life and annuity reinsurance breaches where a forced recapture occurred" and urging a tiered or scenario-based approach phased in over time rather than a 2027 cliff edge. Expect the calibration fight to run through 2027.

The U.S. is not moving alone. In April, the UK's Prudential Regulation Authority proposed changes that it estimates would lift the capital held against an average funded reinsurance deal from roughly 2% to 4% of the reinsured annuity liabilities to around 10%. Japan's Financial Services Agency has finalized guidance requiring insurers to test whether risk has genuinely transferred and to stress-test reinsurer failure, including several failures at once. Three of the largest sources of demand for asset-intensive reinsurance are tightening in the same year.

If you sign or support a cedant's opinion, year-end 2026 is the harder year. Product-line cash-flow testing is a bigger build than counterparty-level testing, and the weak spots from year one, asset traceability and attribution, are exactly what regulators are now examining. Secure your data rights with the reinsurer before December, not during the filing.

If you price or negotiate treaties, recapture terms, change-in-law clauses and reporting obligations used to read as legal boilerplate. With a recapture charge on the table for non-reciprocal counterparties, they are capital terms. Model the charge as a scenario now, before it is calibrated.

If you do counterparty or deal diligence, start with "which regulator, and what must it make the reinsurer disclose?" Bermuda's new public disclosures are a primary-source upgrade for anyone assessing a Bermuda counterparty. For other domiciles, assume thinner and less standardized data, and treat jurisdictional status as a live variable that can move your capital position.

If you are a P&C or health actuary, the playbook will look familiar. Regulators are proposing to align life RBC's reinsurer credit charge with the P&C method, and Cayman's NAIC application starts with property and casualty. Wherever capital efficiency depends on where a liability sits and how its assets are valued, some version of this scrutiny tends to follow.

Most of the carriers I work with, small life insurers, fraternal societies and preneed writers, will never sign an asset-intensive treaty with an offshore affiliate. I still follow every AG 55 development closely, because the question it asks is the oldest one in our profession: can you pay what you promised, with assets that will actually be there when you need them?

The "Bermuda Triangle" label was always a little misleading. Assets and liabilities never vanished offshore; they became hard to see. AG 55 opened a window, and within a year regulators decided that what they could see justified putting a price on where a liability sits. The offshore model is not ending. What is ending is the idea that jurisdiction is a free structuring choice. And when the answer is in doubt, the guideline puts it where it belongs: on the appointed actuary's signature.

NAIC Actuarial Guideline LV (AG 55); EY, "Reinsurance regulatory requirements: asset adequacy insights" (October 2025); Debevoise & Plimpton and Mayer Brown analyses of AG 55 (2025 to 2026); InsuranceNewsNet, "Regulators: 'No firm conclusions' from first offshore reinsurance filings" (July 2026); Milliman AG 55 implementation survey (August 2026); Willkie Farr & Gallagher, "NAIC Committee Proposes Reinsurance RBC and Reporting Changes" (August 2026); Insurance Business on the recapture charge and on UK, U.S. and Japanese rules, citing Fitch (October 2026); Fitch Ratings on offshore life reinsurance (September 2026); InsuranceERM on Cayman's NAIC application (August 2026); NAIC Financial Condition (E) Committee referral to the Life RBC (E) Working Group (July 27, 2026); CIRCA comments via Reinsurance News (October 2026); American Academy of Actuaries Reinsurance Work Group comment letter (September 28, 2026); PRA Consultation Paper CP8/26 (April 2026); Conyers on the NAIC 2026 Summer National Meeting; Appleby, "The long game: how Bermuda became the world's life reinsurance capital" (2026); InsuranceNewsNet, "Bermuda tightens reinsurance regs, sees a decline in new entrants" (February 2026), citing S&P Global; BMA notices; BIS Quarterly Review (September 2024); IMF analysis of private equity and life insurers (2023). Figures reflect public information as of October 2026.

Syed Raza, FSA, is an appointed actuary working with life insurers, fraternal benefit societies, and preneed and final expense writers.