What Is a Managing General Agent (MGA) in Insurance? 

If you have spent any time around the UK insurance market, you have almost certainly encountered a managing general agent (MGA) without necessarily being clear about what they do in practice.  

Managing general agents are not insurers, though they act like them in many respects. They occupy a specific and increasingly important position in how insurance capacity reaches the market. 

Read on to learn more about exactly what an MGA is, what distinguishes it from both insurers and brokers, why they exist and why the MGA insurance model has grown in the UK.  

What Is a General Managing Agent (MGA)?  

A Managing General Agent (MGA) is a type of insurance intermediary that is entrusted with underwriting authority from insurers. 

An MGA acts on behalf of an insurer by managing underwriting, pricing and often policy issuance and claims handling within agreed terms.  

The Managing General Agents’ Association (MGAA) defines an MGA as ‘an agency whose primary function and focus is the provision of underwriting services and whose primary fiduciary duty is to its insurer principal’. 

MGA’s stand in for the insurer in many capacities; except they do not typically carry the insurance risk on their balance sheet. Instead, they use the capital and capacity of their insurance partners to underwrite policies, operating under a delegated authority insurance agreement. 

Let’s break down what they do even further.

What Does a Managing General Agent Do?

In practice, an MGA is entrusted to act on an insurer’s behalf. This means they can make underwriting decisions within a defined scope, instead of having the insurer review and approve every individual risk.  

Here’s what an MGA can typically do: 

• Quote: assess a risk and offer terms and pricing, without needing case-by-case sign-off from the insurer  

• Bind: commit the insurer to covering a risk once terms are agreed  

• Issue policy documents: produce and send out the actual policy paperwork on the insurer’s behalf  

• Handle claims: in some arrangements, MGAs can manage claims from first notification through to settlement, again within agreed limits.  

The specific combination of activities varies from one MGA to the next – some hold very broad authority across underwriting and claims, while others operate within a set of boundaries where they refer certain decisions back to the insurer.  

In essence, the binder is a set of enforceable boundaries that protects both the insurer’s capital and the MGA’s ability to operate with day-to-day independence.  

How Does Delegated Authority Work?

Delegated authority describes the relationship between an MGA and the party providing the insurance capacity behind it – whether it’s a traditional insurer, a Lloyd’s syndicate, or a reinsurer. 

In each case, the capacity provider carries the underlying financial risk, while the MGA acts as its underwriting arm for a defined segment of business.  

The capacity provider isn’t stepping back from the risk itself – it’s simply delegating the day-to-day decision-making to a specialist that can move faster and often understands a particular class of business more deeply than the insurer’s own underwriting team. 

In the UK, MGAs sit within a defined regulatory framework. 

Firms distributing insurance in this way are typically authorised by the Financial Conduct Authority (FCA), and are expected to meet standards around governance, systems and controls appropriate to the scale and complexity of their business. 

In instances where an MGA handles client money, e.g. premiums moving to the insurer, or claims payments moving to the policyholder, it is generally subject to the FCA’s Client Assets Sourcebook (CASS) rules, which set out how that money must be held and managed.  

MGA vs Broker: What’s the Difference?  

The core difference comes down to who each one represents in the transaction.  

A broker represents the client. Their job is to understand the client’s risk, shop that risk across the market and negotiate the best terms and price on the client’s behalf. A broker doesn’t have the authority to bind cover itself.  

An MGA represents the insurer or the capacity provider. 

Rather than shopping the market for a client, an MGA has been given delegated underwriting authority by an insurer to make decisions on its behalf, within agreed limits.  

It can quote, bind cover, issue policy documents and sometimes handle claims, all without needing case-by-case sign-off.  

Here are a few distinctions that show the differences between the two in function:  

Why Do Insurers Use MGAs? 

Insurers use MGAs for a few practical reasons that all come down to speed, specialisation, and efficiency. 

Building an in-house underwriting expertise for a new class of business or entering a new market  takes time. Partnering with an MGA that already has that expertise lets an insurer start writing business faster than building the capability from scratch.  

Many MGAs focus on niche or complex risk categories like construction, cyber, professional indemnity, or specific property classes – where deep, specialised knowledge matters more than broad market coverage. Insurers benefit from that expertise without needing to develop it internally for every line of business they want to offer. 

It’s also more cost-efficient for insurers to use MGAs. Instead of investing in a full underwriting team, systems, and infrastructure for a new product line, an insurer can lean on an MGA’s existing capability. This makes it more commercially viable to enter markets or niches that might not otherwise justify the investment.  

What Makes a Good MGA? 

Not all MGAs are equal, and the quality of an MGA matters significantly to the brokers who use it and the insurers who back it. The characteristics that distinguish a well-run MGA from a poorly run one are consistent across the market:  

• Deep underwriting expertise in its chosen lines: an MGA that has drifted outside its genuine area of knowledge is a risk to both its capacity provider and the brokers using it

• Transparency about capacity: a reputable MGA is clear about which insurer sits behind its policies and will provide this information readily

• Claims handling quality: the FCA’s consumer outcomes focus has made claims handling a lens through which delegated authority relationships are increasingly scrutinised

• Financial stability of the capacity provider: the MGA itself does not carry the risk, but the insurer does; the financial rating of the capacity provider matters to anyone relying on the policy

• Speed and dialogue: one of the practical advantages MGAs offer brokers is faster, more substantive underwriting decisions; an MGA that has lost this edge through growth or operational complexity loses its core value proposition.  

The UK MGA Market in 2026 

The UK MGA market is growing steadily. The Managing General Agents’ Association reported 233 member organisations in 2024, up from 187 in 2022, collectively underwriting more than £13.2 billion in premiums across the UK and Republic of Ireland. 

Up until 2026, growth in the MGA market has been driven by several converging factors. 

Insurers are recognising that the MGA model is an efficient way to access niche markets and specialist distribution without building the infrastructure in-house.  

Private equity investment in MGAs has accelerated, mainly due to the attractive fee, profit-share and the relative resilience of specialist books.  

Insurtech investment is gravitating towards MGAs specifically because the model allows faster product development and more flexible underwriting than a traditional carrier structure. 

Regulatory attention is also growing. The FCA has focused specifically on delegated authority arrangements, the category that includes MGA binding authorities, as part of its broader oversight of fair value in insurance distribution.  

The MGAA have worked closely with the FCA on developing guidance, and the 2024 MGAA-ABI Memorandum of Understanding reflects the sector’s increasing integration into mainstream insurance governance. 

Understanding the MGA’s Place in UK Insurance 

The UK MGA market continues to grow – bringing more capital, more scrutiny and more specialist product lines with it.  

A managing general agent isn’t simply a smaller version of an insurer, or a broker with extra authority – it’s a distinct model built specifically to let underwriting expertise and insurance capital work together more efficiently.  

Understanding this distinction matters whether you’re a broker deciding where to place a risk, an insurer weighing up a delegated authority arrangement, or simply trying to make sense of who is standing behind a policy. 

A Real-World Example: How We Apply the MGA Model 

The MGA model isn’t just a topic we write about – it’s part of how we operate at Accquis.

We invest in and support specialist insurance businesses, including Exance, a wholesale broking MGA delivering solutions across property, construction and financial lines. 

Rather than having each brand within our group build its own underwriting capacity, distribution, and compliance functions from scratch, a group structure like this allows specialist MGAs to scale with shared operational support behind them.  

We’re not just observing the trend toward MGA-led distribution – we’re actively participating in it, and we can help you scale.  

Scaling an MGA takes more than underwriting expertise. It takes the right capital behind it. At Accquis we back high-growth brokers and MGAs with £5–£15,000,000. Talk to our team about funding your next stage of growth.