Insurance Glossary
Definition · Market Structure

MGA (Managing General Agent)

A Managing General Agent is a specialized insurance intermediary with delegated underwriting authority from insurers, combining the distribution role of a broker with the underwriting capability of a carrier to serve niche markets efficiently.

MGA Delegated Authority Underwriting Distribution

How It Works

A Managing General Agent operates under a delegated authority agreement with one or more insurance carriers. The carrier grants the MGA the right to underwrite risks, set premiums, bind coverage, and issue policies within a defined set of parameters — known as the binding authority. This arrangement allows the carrier to access markets, geographies, or specialty lines it could not efficiently serve on its own, while the MGA builds a focused operation around its area of expertise.

The MGA model creates a distinct value chain. The MGA sources business through its own distribution network — often working with retail brokers who bring individual risks — and applies its underwriting expertise to select and price those risks. The carrier provides the balance sheet capacity and regulatory license. Revenue flows through a commission structure that typically includes a base commission (10-25% of GWP) plus a profit commission tied to underwriting performance, usually triggered when the loss ratio stays below an agreed threshold.

Technology is the critical differentiator for modern MGAs. The most successful MGAs invest 8-15% of revenue in technology platforms that enable faster quoting, automated risk assessment, and real-time portfolio monitoring. This investment creates operating leverage: as premium volume grows, the cost per policy decreases, and the MGA can demonstrate superior unit economics to its capacity providers. The result is a virtuous cycle — strong underwriting performance attracts more capacity, which enables more growth, which funds further technology investment.

The MGA model is growing at 2-3x the rate of the broader insurance market because it combines specialization, speed, and technology in ways traditional carriers struggle to replicate.

Practical Example

Consider a specialty MGA focused on cyber insurance for mid-market businesses. Traditional carriers often struggle with cyber risk because the loss data is limited and the threat landscape changes rapidly. This MGA builds proprietary predictive models that ingest real-time threat intelligence, company security posture data, and historical claims patterns to price risks more accurately than generic carrier models. Quotes that once took five days through traditional channels now take four hours. The MGA underwrites selectively — declining 60% of submissions that fall outside its risk appetite — and achieves a loss ratio of 38%, well below the market average of 55%. With this track record, the MGA grows 40% year-over-year, attracting a second capacity provider and expanding into adjacent lines like tech E&O.

Key Metrics

MetricBenchmarkImpact
MGA market growth rate15-20% annually (global)Outpacing traditional distribution by 2-3x
Base commission range10-25% of GWPVaries by line of business and MGA role in value chain
Target loss ratio40-55% (specialty lines)Profit commission triggers below agreed threshold
Technology spend (% of revenue)8-15%Drives operating leverage and competitive differentiation
Profit commission share20-40% of underwriting profitAligns MGA incentives with carrier profitability

FAQ

Q: What is the difference between an MGA and a traditional broker?

A traditional broker acts as an intermediary between the client and the insurer, presenting risks and negotiating terms but never making underwriting decisions. The insurer retains full authority to accept or decline each submission. An MGA holds delegated underwriting authority from one or more insurers, meaning it can assess risks, set premiums, bind coverage, and issue policies without referring each case back to the carrier. MGAs typically specialize in specific lines of business where they possess deep expertise, and they invest heavily in technology to underwrite profitably. The trade-off is greater accountability: MGAs must demonstrate strong loss ratios, maintain rigorous compliance, and submit detailed bordereaux reporting to their capacity providers.

Q: How do MGAs make money?

MGAs generate revenue through a combination of commission income and profit-sharing arrangements. The base commission typically ranges from 10% to 25% of gross written premium, depending on the line of business and the MGA's role in the value chain. Beyond base commission, most MGA agreements include a profit commission where the MGA earns additional income if the book of business performs better than an agreed loss ratio target. Some MGAs also generate fee income from policy administration, claims handling, and value-added services. The most successful MGAs build scalable technology platforms that allow them to grow premium volume without proportional increases in operational cost, creating significant operating leverage over time.

Related Terms

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