Delegated underwriting authority (DUA) is a contractual arrangement in which an insurance carrier grants a third party, usually a managing general agent (MGA), managing general underwriter (MGU), or coverholder, the power to underwrite, bind, price, and issue policies on the carrier's paper within an agreed appetite and set of limits. In practical terms, the carrier hands day-to-day risk selection to a partner and, in exchange, gives up real-time visibility into the book, seeing much of that business only when the periodic bordereau report arrives weeks later.

That trade sits at the center of one of the fastest-growing structures in commercial P&C. US MGA premium rose 16% to $114.1 billion in 2024, according to Conning's 2025 MGA study, and fronting carriers alone backed more than $18 billion of it. When a carrier delegates authority at that scale, the quality and timeliness of the data flowing back becomes the whole ballgame.

TLDR

• DUA lets a carrier authorize an MGA, MGU, or coverholder to bind and issue policies on its behalf within a defined appetite.
• The carrier trades hands-on control for distribution reach and speed, and accepts a visibility lag until the bordereau lands.
• The structure is large and growing: $114.1B in US MGA premium in 2024 (Conning), with fronting-backed premium up 26%.
• The operational risk is data, not intent. Carriers are on-risk for 30 to 60 days before a delegated book becomes visible.
• Accurate, timely ingestion of delegated data is what turns a blind book into a defensible one.

How does delegated underwriting authority work?

Under a binding authority agreement, often called a binder in the London market, the carrier defines the box the delegate must operate inside: eligible classes, geographies, limits, deductibles, rating rules, and referral triggers. Within that box the MGA acts like an outsourced underwriting department. It quotes, binds, issues documents, and frequently handles claims, all on the carrier's paper.

The carrier's control shifts from transaction-level to portfolio-level. Instead of reviewing individual risks, the carrier audits the delegate, sets guardrails, and monitors performance through reporting. That reporting arrives as a bordereau: a periodic schedule, usually monthly, listing every policy bound, premium written, and claim paid during the period. For a fuller treatment, read our field explainer on why you cannot see a delegated book until the bordereau lands.

Who holds delegated authority?

Three roles carry delegated authority in commercial P&C, with slightly different scopes:

Lloyd's illustrates the scale. Delegated authority accounted for roughly 45% of the market's premium income in 2024. Nonaffiliated MGAs, those not owned by a carrier, now write 46.6% of US MGA premium, per Conning, which means an ever-larger share of delegated business sits outside the carrier's own four walls.

Why does delegated underwriting authority matter for carriers?

The appeal is clear: distribution reach, specialist expertise, and premium growth without building an underwriting team for every niche. The exposure is quieter. When a carrier delegates authority, it stays liable for every policy the delegate binds, yet it does not see that business as it is written. The book becomes visible only when the bordereau is received, reconciled, and loaded, which routinely leaves the carrier on-risk for 30 to 60 days before the exposure is in view.

That lag is a data problem, not a trust problem. Bordereaux arrive in inconsistent, MGA-specific formats, with different column names, date conventions, and coverage codes. Reconciling them by hand is slow and error-prone, and a single mismapped field can distort premium, aggregate exposure, or loss reporting across an entire program. For carriers writing delegated business at volume, the choke point is not underwriting judgment. It is the manual ingestion of the delegate's data.

How Pibit.AI fits

This is where data accuracy stops being a nicety and becomes the control mechanism. Pibit.AI parses bordereaux and delegated submission data from any MGA format into a single normalized schema, with field-level accuracy backed contractually at 99.9% through a combination of AI extraction and a human-in-the-loop review team. The aim is not speed for its own sake. It is that a carrier cannot govern what it cannot see accurately. When every policy, premium, and claim in a delegated book is captured cleanly and mapped to one schema, the carrier gets a defensible, current view of business it previously saw only in arrears.

Accurate ingestion also compounds. It feeds clean data into submission clearance and downstream loss run analysis, so program performance is monitored on the same footing as directly written business. For a structure growing at double digits, that accuracy is what keeps delegated authority a growth lever rather than a blind spot.

Sources: Conning, 2025 MGA Study (US MGA premium up 16% to $114.1B in 2024; fronting-backed premium +26%; nonaffiliated MGAs 46.6% of premium), reported July 2025; Lloyd's of London full-year 2024 results (delegated authority roughly 45% of premium income).