Definition:Flat commission

💰 Flat commission is a fixed percentage paid to an insurance broker or agent for placing or servicing a policy, regardless of the policy's loss ratio or profitability outcome. Unlike contingent commissions or profit commissions, which fluctuate based on how the book of business performs, a flat commission locks in the intermediary's compensation at the point of sale. The rate is typically defined in the binding authority agreement or agency contract and applies uniformly to every policy written under its terms.

📊 The commission is calculated as a set percentage of the gross written premium and is deducted before the net premium flows through to the carrier or reinsurer. For example, if a managing general agent earns a 15% flat commission on a $100,000 commercial policy, the carrier receives $85,000 as its share of the premium. Because the rate does not change with claims experience, flat commissions simplify accounting and cash-flow projections for both the intermediary and the insurer. They are especially common in lines where loss volatility makes performance-based structures harder to calibrate, such as specialty or surplus lines business.

🔍 For carriers, agreeing to a flat commission means absorbing all underwriting risk without sharing it through variable compensation. This makes the structure attractive to intermediaries seeking income predictability, but it also means the insurer must rely on other levers — like underwriting guidelines, audits, and bordereaux reporting — to keep loss performance in check. In delegated authority arrangements, carriers sometimes pair a modest flat commission with a smaller profit commission to maintain alignment of interests, blending stability for the intermediary with an incentive to write profitable business.

Related concepts