Surplus lines premium reached nearly $36 billion, and premium bearing transactions neared 2.9 million through the first six months of 2023, according to the 2023 Midyear Report of the U.S. Surplus Lines Service and Stamping Offices. Premium increased 15.9% and transactions 2.6% over results reported through the same period in 2022. These results follow last year's record-breaking premium of $31 billion and growth of 32.4%.

As part of the 2023 Midyear Report, the offices are pleased to release data broken down by lines of business for the first time. Comparing 2022 and 2021 surplus lines market data, this report identifies key lines of business including auto liability, auto physical damage, disability/ A&H, inland marine, liability (non-professional), multi-peril, professional liability, property, and residential/homeowners/other personal property. The stamping offices collaborated to map each state's coverage codes into these ten lines of business, providing a composite across the 15 states, representing the only source of surplus lines premium by line of business of its kind. Moving forward, this report is intended to provide a more granular tool to analyze and identify market trends by aggregate product line, offering all constituents useful information to better serve their clients. Download an Excel version of the 2022 and 2021 stamping office data by line of business here.