Umbrella Insurance Calculator

Umbrella insurance is liability coverage that sits on top of your auto and home policies and only pays once those are exhausted. It is among the cheapest coverage sold per dollar of protection, precisely because the claims it covers are rare and catastrophic rather than frequent and small.

The usual advice — "buy coverage equal to your net worth" — is incomplete in one important way. A judgment above your policy limits can be satisfied by garnishing your future wages, not just by seizing what you own today. Someone with a modest balance sheet and thirty years of earning ahead of them has real exposure that a net-worth rule of thumb misses entirely.

This calculator counts both, subtracts what your existing policies already cover, and rounds to the $1 million increments umbrella is actually sold in.

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Two modelling choices worth explaining, because they are judgment calls:

Retirement accounts are counted at 25% of value, not 100%. ERISA-qualified plans such as a 401(k) have broad federal creditor protection. IRA protection, however, is set by state law and varies enormously. Counting them fully would overstate your exposure; ignoring them entirely would understate it in states with weak IRA protection.

The underlying coverage subtracted is the LOWER of your auto and home limits, not the sum. A claim arrives through one policy or the other, so the weaker one is where the gap actually opens. If you carry $500,000 on the home and $100,000 on the auto, your real floor is $100,000.

Federal law caps wage garnishment at 25% of disposable earnings and many states cap it lower, which is why the default assumption here is a middle-of-the-road 15%.

This is an estimate for planning, not an insurance quote. Actual pricing is set by the insurer or, in promulgated-rate states, by the state regulator.

You generally cannot buy an umbrella policy on its own. Carriers require minimum underlying liability — commonly $250,000 to $300,000 on both the auto and home policies — before they will write one at all.

If your limits are below that, raising them is the first step, and it usually costs far less than people expect. Liability limits are among the cheapest things on a policy to increase, because most claims never approach them.

Certain exposures raise both your odds of a large claim and the carrier's underwriting scrutiny:

• Swimming pools and trampolines — "attractive nuisances" in insurance language
• Dogs, particularly certain breeds carriers list
• Teen drivers
• Rental property or a landlord relationship
• Serving on a nonprofit or HOA board

If any of these apply, the calculator raises the target by 25%.

Umbrella policies typically cover more than the underlying policies they sit above:

• Bodily injury and property damage beyond your auto and home limits — the core function.
• Legal defence costs, usually paid outside the policy limit, which is why an umbrella can be worth carrying even if your existing limits technically cover your exposure.
• Personal injury claims such as libel, slander and false arrest, which standard home policies often exclude.
• Incidents away from your property and, in many policies, worldwide.

What it does not cover: your own injuries, damage to your own property, business activities (that needs commercial liability), and intentional acts.

If you want a clearer picture of the assets at stake, run the net worth calculator first and bring the figures back here.