What Is a Segregated Accounts Company (SAC) and Is It Right for Your Business?
Imagine you are a mid-sized business that has outgrown the commercial insurance market — premiums climbing, coverage narrowing, and a growing appetite for control. You have heard about captive insurance, but a standalone captive feels like a significant commitment: capital requirements, governance infrastructure, and regulatory obligations, all for one company’s risks. What if there were a structure that offered the financial ring-fencing of a captive without the full weight of setting one up from scratch? That is precisely where a segregated accounts company comes in — one of the most versatile and underutilised risk financing tools available today, and one that Bermuda pioneered.
What Is a Segregated Accounts Company?
A segregated accounts company is a single legal entity that holds assets and liabilities in legally distinct, ring-fenced accounts — each separated from the others and from the company’s general account. If one account faces a large claim or insolvency, the assets held in the other accounts are fully protected by statute.
Bermuda introduced the framework through the Segregated Accounts Companies Act 2000, making it one of the first jurisdictions in the world to codify this structure into law. The legislation was a direct response to growing demand — businesses had been petitioning for private acts of Parliament to create individual segregated structures, and the volume of requests made a statutory framework both practical and necessary.
In Bermuda, the structure is formally called a segregated accounts company. In the Cayman Islands, the equivalent is known as a segregated portfolio company. In many other jurisdictions, it is called a protected cell company (PCC). The core mechanism is the same: statutory separation of assets and liabilities within a single licensed insurance entity.
How a Segregated Accounts Company Works
The SAC structure operates across three distinct layers:
- The general account — the SAC’s own capital base, which underpins the overall entity and meets regulatory requirements
- Individual segregated accounts (cells) — each linked to a specific participant or risk programme, holding that participant’s premiums, reserves, and claims independently
- Statutory protection — enshrined in the SAC Act, meaning the ring-fencing is legally enforceable, not merely contractual
Importantly, segregated accounts within a SAC are not separate legal entities. They exist within the single licensed company — which matters significantly from a regulatory and cost perspective. Participants gain the economic benefits of separation without the overhead of incorporating and licensing individual captives.
Who Uses a Segregated Accounts Company?
The segregated accounts company model is used across several distinct contexts:
Captive insurance is the most common application. Businesses that want the benefits of captive ownership — premium control, underwriting profit retention, tailored coverage — but prefer a lower-capital entry point can participate in a segregated accounts company as a cell owner rather than forming a standalone captive. According to WTW’s Insurance Marketplace Realities 2026 report, segregated account cell business in Bermuda remains highly active, with captives increasingly embedded in enterprise risk management strategies as tools for resilience and risk financing innovation.
Group risk programmes allow unrelated companies to each hold a cell within the same SAC, benefiting from shared infrastructure and, critically, portfolio diversification. When unrelated risks are combined under one structure, the overall volatility of the portfolio decreases — meaning each participant’s cost of risk can fall over time.
Rent-a-captive arrangements see a SAC sponsor maintain the general account while businesses rent a cell to access captive-like benefits without owning the underlying entity — dramatically reducing the barrier to entry.
The Key Advantages of a Segregated Accounts Company
For businesses evaluating the SAC model, the benefits are substantial:
- Asset protection — statutory ring-fencing means your cell’s assets are legally insulated from liabilities in other cells
- Lower capital requirements — participating in a cell costs considerably less than capitalising a standalone captive
- Faster formation — cells can typically be established more quickly than new captive entities
- Regulatory efficiency — one licensed entity, one compliance framework, shared across all cells
- Diversification benefits — in multi-participant SACs, unrelated risk portfolios create natural diversification that reduces overall programme volatility
Captive industry data published in 2026 confirms that a significant volume of global captive premium is held in protected cells and segregated accounts — a clear reflection of how widely this structure has been adopted by businesses seeking flexible, cost-effective risk financing.
Bermuda’s Advantage as an SAC Domicile
Not all segregated accounts company frameworks are equal. Bermuda’s is regarded as one of the most legally robust in the world, for several reasons:
- The Segregated Accounts Companies Act 2000 provides clear statutory authority for asset ring-fencing — legally enforceable, not merely contractual
- The Bermuda Monetary Authority (BMA) regulates SACs within the broader insurance licensing framework, providing international credibility
- Bermuda holds EU Solvency II equivalence, which matters for businesses with European counterparties
- The BMA issued updated guidance for segregated account companies in 2024, reinforcing policyholder protections and setting clear standards for contingent capital arrangements
- No corporate income tax, no withholding tax, and no capital gains tax for domiciled entities
Is a Segregated Accounts Company Right for Your Business?
A SAC structure tends to suit businesses that want captive-like benefits without the full capital burden of a standalone captive, are part of a multi-participant group programme seeking diversification advantages, or need the flexibility to write multiple risk lines within a single entity.
The right structure always depends on your risk profile, premium volume, coverage requirements, and long-term objectives. A thorough feasibility assessment is the appropriate starting point — with expert guidance evaluating whether a segregated accounts company, standalone captive, or alternative structure best aligns with your goals. Explore IML’s captive design and formation services for more detail on what that process involves.
Conclusion: What Is a Segregated Accounts Company?
A segregated accounts company is one of the most flexible and capital-efficient risk financing structures available today. By delivering statutory ring-fencing within a single licensed entity, the SAC model offers the core benefits of captive insurance at a lower cost and with greater structural flexibility. Bermuda’s framework remains among the most legally robust in the world — and for businesses ready to move beyond conventional insurance, the segregated accounts company deserves serious consideration.
Thinking About Whether a Segregated Accounts Company Could Work for Your Business?
The decision to explore a segregated accounts company structure benefits enormously from expert guidance at the outset. IML’s independent captive and commercial insurance specialists in Bermuda can walk you through the feasibility, structure, and formation process — helping you determine whether a SAC or another arrangement is the right fit for your risk profile. Explore IML’s full captive insurance management services, or contact the team to start the conversation.