# What is a commercial umbrella insurance policy? *Reviewed 2026-05-15* ## Short answer A commercial umbrella policy adds an extra layer of liability limit on top of your underlying policies, such as general liability and commercial auto, paying once those limits are used up by a covered claim. Businesses use it to raise their total coverage affordably, especially when a single large claim could exceed a base policy's limit. Umbrella coverage sits above your primary liability policies. If a covered claim exhausts the limit on the underlying policy, the umbrella continues paying up to its own additional limit. It does not replace those policies; it extends them, and it usually requires you to carry specified underlying limits first. It is a cost-effective way to reach higher total coverage, which matters when a serious lawsuit or accident could run past what a base policy covers. It is also sometimes required by larger contracts. ## Related - [Insurance coverage options](/insurance) - [Contact our team](/contact)