How to use the umbrella insurance calculator
You will need your declarations pages. A declarations page is the summary page of your policy that lists your coverages and limits.
- Estimate your home equity: current value minus your mortgage balance.
- Add savings and checking balances.
- Add investments outside retirement accounts.
- Add other assets someone could claim, such as a second home.
- Enter your auto bodily injury per-accident limit and your home or renters personal liability limit.
A second worked example
What the result means
A gap means a large claim could be bigger than your insurance and reach your savings or home. The Insurance Information Institute suggests considering an umbrella or excess liability policy if your investments and savings are worth more than your liability limits. Covered means your highest limit is at least as large as the assets you entered. That does not mean you are safe from every lawsuit. It means this simple check found no gap.
Liability layers compared
| Layer | What it covers | Where the limit is shown |
|---|---|---|
| Auto liability | Injuries and damage you cause with a car | Auto declarations page, for example 100/300/100 |
| Home or renters liability | Injuries and damage you cause at home or elsewhere | Home or renters declarations page (often Coverage E) |
| Umbrella | Covered claims after the limits above are used up | Umbrella declarations page, often $1 million or more |
To understand the numbers on an auto policy, see car insurance coverage types. For homeowners liability, see homeowners insurance coverage explained.
State rules that change the answer
State minimum auto limits are far below what most people own, so they rarely protect your assets on their own. Our state minimum car insurance guide lists each state’s floor. How much of your property a creditor can reach after a judgment, such as home equity, is set by state law and varies widely. In New York, the Department of Financial Services notes that umbrella policies can also include extra supplementary uninsured/underinsured motorist (SUM) limits (NY DFS, accessed October 2026). Ask your insurer which options are available in your state.
Common mistakes
- Entering the per-person limit. Use the per-accident bodily injury limit, the middle number.
- Forgetting renters liability. Renters policies usually include it.
- Skipping underlying minimums. An umbrella may require higher auto or home limits first. Ask, and budget for both.
- Counting only today. If your assets or income will grow, revisit the check each year.
- Ignoring household risks. Teen drivers, a pool or a dog can raise your liability risk.
When is an umbrella worth a closer look?
An umbrella policy is worth a closer look when this check shows a gap, but also in some situations a simple asset count can miss. Liability risk depends on what you do, not just what you own. Households often look harder at extra liability coverage when they have:
- A teen or newly licensed driver.
- A swimming pool, trampoline or dog.
- Rental property or frequent guests.
- A high income, since a judgment can sometimes reach future earnings.
- Volunteer roles, such as serving on a nonprofit board, depending on the policy.
On the other hand, if your assets are modest and your current limits are already well above them, raising your auto or home liability limits may be enough. Sometimes that costs less than adding an umbrella, though prices vary.
Questions to ask an insurer about an umbrella
- What minimum auto and home or renters liability limits do you require underneath?
- Does the umbrella cover everyone in my household, including young drivers?
- Does it include uninsured or underinsured motorist coverage, or is that separate?
- What is excluded, such as business activities or certain vehicles?
- Can I get the umbrella from a different insurer than my auto and home policies?
Write down the answers and rerun this check whenever your assets or household change.
Related tools
To see what your current auto limits would pay after a crash, use the liability gap calculator. To check all your premiums together, try the insurance budget calculator.
