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

A Managing General Agent (MGA) is a specialized insurance intermediary authorized by a carrier to underwrite, price, and issue policies using delegated binding authority rather than its own capital. MGAs represent the insurer, not the client, and can accept or reject risks independently under a formal Binding Authority Agreement. The U.S. MGA market reached $114.1 billion in direct premiums written in 2024, per Conning, while A.M. Best separately reports $89.9 billion in premium written by insurers through MGAs in 2024, reflecting different scope and methodology across the two measures.

What is the difference between an MGA and an IMO?

An MGA holds delegated binding authority from a carrier and represents the insurer, making underwriting decisions in the carrier's name. An Independent Marketing Organization (IMO) represents the agent or broker, not the carrier, and provides marketing and sales support without any power to bind coverage or underwrite risks.

The distinction matters operationally because it determines who carries legal and financial weight in the transaction. An MGA operates under a Binding Authority Agreement that defines its scope: risk evaluation, policy execution, and sometimes claims management. An IMO has none of those powers. IMOs recruit and support producers, negotiate commission tiers, and run training programs. MGAs sit one step closer to the carrier's balance sheet and require licensed agent or corporate broker status plus specific underwriting authorization. If your distribution strategy involves specialty or surplus-lines products, the MGA is the access point the carrier has already pre-qualified.

Dimension	MGA	IMO
Represents	Carrier (insurer)	Agent or broker
Binding authority	Yes, via delegated agreement	No
Underwrites risks	Yes	No
Issues policies	Yes, in carrier's name	No
Claims authority	Sometimes	No
Primary role	Delegated underwriting	Marketing and sales support
Capital at risk	Carrier's (not MGA's)	Not applicable

How does delegated binding authority work?

Delegated binding authority is a contractual grant from a capacity provider (insurer or reinsurer) that lets the MGA accept specified risks, set pricing, and execute policies without each individual risk returning to the carrier for approval. The scope, limits, and risk classes the MGA can write are defined in the Binding Authority Agreement.

In practice, the carrier retains the risk on its own balance sheet; the MGA uses the carrier's capital but never assumes the underlying financial exposure. Under the NAIC MGA Model Act (#225), an entity must manage an insurer's business, produce and underwrite at least 5 percent of the insurer's surplus in gross direct written premium, and adjust or pay claims exceeding $10,000 per claim to qualify as an MGA, per insurnest.com. Under Lloyd's and London market conventions, binding authority documents are standardized, as Lloyd's publishes formal Binding Authority Wordings to govern coverholder arrangements. The agreement specifies territorial scope, premium limits, reporting cycles, and claims-handling thresholds. Where the MGA also manages claims, a separate delegated claims authority is typically layered on top of the core binding agreement.

What does the MGA business model mean for retail agency growth?

For a retail agency or brokerage, the MGA is the distribution access point for specialty and hard-to-place risks that standard carriers will not quote directly. MGAs primarily operate in wholesale and specialty markets, including cyber risk, marine, energy, and professional liability, giving retail producers access to capacity without a direct carrier relationship.

The scale of the channel signals where growth is concentrated. Conning reports the U.S. MGA market grew 16 percent year-over-year in 2024 to reach $114.1 billion in direct premiums written, outpacing the broader U.S. Property and Casualty market's approximately 10 percent growth. The number of very large MGAs producing $500 million or more in direct premiums written increased to 19 in 2024, up from 12 in 2023, per Conning. Globally, Dataintelo estimates the MGA market at $63.4 billion in 2025 and projects it to reach $128.7 billion by 2034 at an 8.2 percent CAGR. For agencies building a specialty book, aligning with the right MGA is a distribution infrastructure decision, not a product preference. Tracking those MGA relationships inside a single CRM pipeline, the way Kadence organizes producer and partner data, prevents capacity relationships from living only in individual reps' inboxes.

How are Managing General Agents regulated and licensed?

An MGA must hold licensed agent or corporate broker status and receive specific underwriting authorization from its capacity provider. In the U.S., the NAIC MGA Model Act (#225) defines MGA classification criteria, including premium-volume thresholds and the requirement that the entity negotiate reinsurance or manage a book of business on the insurer's behalf.

Regulatory treatment varies by jurisdiction. In Spain, MGAs are classified as Agencias de Suscripción under Article 86 bis of the insurance supervision law, operating as an independent category distinct from traditional intermediaries and requiring prior authorization from the Dirección General de Seguros y Fondos de Pensiones (DGSFP), per iberley.es. In the U.S. surplus-lines market, MGAs frequently operate as wholesale intermediaries where additional surplus-lines licensing requirements apply at the state level. Carriers backing MGA programs are increasingly scrutinizing oversight practices: per Alangray, strengthening MGA oversight in areas like data reporting, underwriting controls, and claims audit trails has become a regulatory priority as delegated authority volume grows.

What are the principal revenue streams for an MGA?

An MGA typically generates revenue from commissions on premiums written, profit-sharing arrangements tied to underwriting performance, and additional fees for services such as claims administration and inspections. MGA EBITDA margins typically range from the high 20s to low 30s, reflecting the leverage of the delegated-authority model.

This revenue structure creates a built-in incentive alignment: the MGA benefits from writing profitable business, not just more volume. The commission range and profit-share terms define the economics of any MGA partnership as concretely as any product offering, so agency operators should evaluate both dimensions when assessing a new capacity relationship.

Why is the MGA model growing faster than traditional distribution?

MGAs grow faster than traditional distribution because they combine carrier-level underwriting authority with the speed and specialization of a focused operator, giving capacity providers access to niche markets without restructuring their own operations. Total U.S. MGA premium reached $102 billion in 2023, reflecting 13 percent growth that outpaced the broader P and C market's approximately 10 percent, and Conning's 2025 MGA Study confirms the sector reached $114.1 billion in direct premiums written in 2024.

The structural driver is specialization. Carriers use MGAs to enter cyber, energy, professional liability, and other segments where deep technical expertise is required to price risk correctly. The MGA provides that expertise and the distribution relationships, while the carrier supplies the balance-sheet capacity. This division of labor is why the Property and Casualty segment is expected to hold 42.3 percent of the global MGA market in 2025, per Dataintelo. For life insurance distribution networks, the MGA model's growth in P and C is a signal worth watching: the same logic of delegated authority and specialized distribution is expanding into adjacent lines. Agencies looking to understand how their own AEO and digital visibility stack up against this changing distribution landscape can book a demo to see how Kadence's built-for-AI-search infrastructure positions a brokerage to be found when buyers and partners search.

Sources

• ¿Qué es un MGA? - Asociación InsurTech México
• Artículo 86 bis. Agencias de suscripción. - Iberley
• Agencias de Suscripción (MGA): Qué son y cómo funcionan
• ¿Qué aportan las agencias de suscripción a la oferta aseguradora en España?
• Managing General Agent: Qué es y cómo impulsa
• Agencia de Suscripción de Riesgos y Reaseguro a Medida
• Gestion de agentes generales MGA impulsando la innovacion en seguros mayoristas
• Agencias de Suscripción, ¿cambio en las reglas de juego? - Inese