What umbrella insurance does
Umbrella insurance is a liability policy that extends protection for your assets and future income beyond the limits of your regular (primary) policies. It differs from a true 'excess' policy, which only kicks in once every underlying policy is completely exhausted — an umbrella policy can instead 'drop down' to fill specific coverage gaps in an underlying policy, meaning it can sometimes act as the primary coverage for a particular claim. The name reflects how broadly it shields your assets compared with standalone coverage.
An umbrella policy is generally pure liability coverage layered on top of your existing policies, typically sold in increments of $1 million. It's called an 'umbrella' because it sits over multiple underlying policies — such as auto and home insurance — adding to their limits. For example, a driver with $500,000 of auto liability coverage and $300,000 of homeowners liability coverage, who adds a $1 million umbrella, would effectively have $1.5 million available for an auto liability claim and $1.3 million for a homeowners liability claim.
Beyond simply raising your limits, umbrella coverage can also pick up certain claims that your underlying home or auto policy may exclude. Examples can include, among others: