Umbrella Policy Cost: Average Rates & What Drives Them

A personal umbrella policy adds liability coverage on top of the limits in your auto, home, or renters policies. If a lawsuit or claim exceeds those underlying limits, the umbrella can pay the difference, and it often helps with legal defense costs as well. Umbrella coverage is usually sold in increments of 1 million dollars.

Pricing is low compared with the amount of coverage, because the underlying policies absorb the first layer of any claim. The sections below show how the cost compares across sources, what each extra million adds, and what insurers look at when they price a policy.

The first million is the most expensive layer. After that, additional coverage costs relatively little, because the insurer's biggest risk sits in the base layer. One source puts the added cost of each extra million as follows.

That makes a policy with several million in limits cost much less than several times the first million. Ask your agent for quotes at more than one limit so the difference is visible.

Umbrella insurers rate the whole household as well as the dollar amount of coverage. The factors that commonly matter include:

• Where you live
• The number of homes, vehicles, and drivers in the household
• Drivers with violations or young drivers
• Ownership of a pool, boat, or other higher-liability items
• Your claims history

Many insurers also require minimum liability limits on the underlying auto and home policies before they will issue an umbrella. If your current limits are lower, raising them may increase the premium on those policies.

The published figures differ because they describe different households and different coverage amounts. NerdWallet reports an average for 1 to 2 million dollars of coverage, citing an agent platform. MoneyGeek gives a range for 1 million dollars, and CNBC Select gives an average for the same limit. A household with one home and a few cars prices differently from a household with several properties, a boat, and a teen driver, and averages mix both. The estimates also come from different dates.

Because the sources disagree, the safest use of these figures is to set expectations, then request quotes. A licensed insurance agent can quote umbrella limits from several carriers.

Instead of an umbrella, some people raise the liability limits on their home or auto policy. That option covers only one policy, while an umbrella sits above several. The better fit depends on your assets and exposure, which is a conversation for a licensed insurance agent. What you can compare directly is the price: ask for the premium increase to raise the base limits and the premium for an umbrella, and see how the two quotes differ for the same total protection.

Some policies carry a retained limit, similar to a deductible, that applies when a claim is not covered by an underlying policy. Ask what it is, what the policy excludes, and whether defense costs are paid outside the limit or reduce it.

Quotes are easier to compare when every company prices the same limit. Ask each one for the premium at the limit you are considering, the required underlying limits, and whether the policy covers claims such as libel or slander, rental properties, or watercraft. Find out whether the company offers a discount if you keep your auto and home policies with it. Ask how the premium has changed for existing customers at renewal. Your own insurer may be a convenient first quote, but pricing differs enough between companies that a second quote can be informative.