Glossary
Commercial multiple peril (CMP)
A policy bundling property and liability coverage for one business, and the annual statement line insurers use to report that package business.
Also called: CMP, commercial multi-peril, multiple peril policy, commercial package line
Commercial multiple peril is both a product and a reporting category. As a product it means one policy that bundles several coverages for a business, typically commercial property and general liability, sometimes with crime, inland marine or equipment breakdown added. As a category it is the line insurers use in the NAIC annual statement for that package business, split into a non-liability (property) portion and a liability portion. Business owner's policies are generally reported there too.
The distinction matters when you read market data. In the 2025 NAIC figures this site uses to rank insurers, commercial multiple peril is one of 17 commercial lines added together, alongside stand-alone lines such as other liability and workers' compensation. A carrier with a large CMP book is, in practice, a package writer for small and mid-size accounts.
For a buyer, the form is what counts. A small restaurant will usually be offered a business owner's policy. A larger or more complex account gets a commercial package policy with separate coverage parts and its own declarations. The label on the insurer's statement does not change what your policy covers or excludes.
The ranking of package writers is in the largest commercial package; Commercial package policies: when a BOP is too small explains when a BOP stops being enough.
Last reviewed October 10, 2026