Umbrella Insurance Calculator
Umbrella limit, gap, and cost from net worth.
What it does
Umbrella insurance covers what net worth exposes. Lawsuits reach past auto and home limits into savings and future wages, so coverage near net worth with a $1M floor is the standard answer. Eight hundred thousand of worth with $300k underlying leaves a $500k gap asking for $1M of umbrella.
The tool above sizes that answer. Enter net worth with underlying limits, and it prints recommended coverage rounded to $1M steps, the gap, and the yearly cost band. Defaults show $1M at $150-$300; $1.5M needs $2M at $225-$375.
Insurance educators agree on mechanics and money. Triple-I requires about $250k auto and $300k home underlying before umbrellas sell, with $150-$300 first-million pricing plus $75 and $50 layers. NAIC confirms umbrellas pay liability and defense past primary limits with $1M-plus extensions.
Underlying limits come first in every quote. Carriers refuse umbrellas without the $250k/$300k base, and gaps between stated limits void the strategy. Price bands vary by carrier and risk; treat figures as planning ranges.
How to use
- Enter net worth.
- Enter underlying liability limits.
- Read recommended cover first.
- Read the gap over underlying.
- Read the yearly cost band.
- Keep underlying limits funded first.
Formula
- net worth
- Assets minus debts in dollars.
- underlying
- Auto/home liability already carried.
III sets $250k/$300k underlying gates with the layered cost band; NAIC confirms excess-over-primary mechanics.
Worked example
Example: $800k net worth
Defaults: $800k net worth with $300k underlying.
- Inputs: $800,000 net worth, $300,000 underlying.
- Recommended: ceil to next $1M = $1M.
- Gap: 800,000 minus 300,000 = $500,000.
- Cost: $150 to $300 a year for the first $1M.
- Tool shows $1M recommended, $500,000.00 over, $150 to $300 /yr.
Reference table
| Limit | Yearly | Math |
|---|---|---|
| $1M | $150-$300 | Base |
| $2M | $225-$375 | Base + $75 |
| $3M | $275-$425 | + $50 more |
| $5M | $375-$525 | + $50 each |
Limits
- Planning bands only. Underwriting varies.
- One underlying figure assumed.
- Exclusions and defense nuances excluded.
- Not insurance advice; agents quote.
Common mistakes
- Buying umbrellas without base limits.
- Matching coverage to income, not worth.
- Ignoring the gap math.
- Skipping defense-cost coverage checks.
- Letting underlying limits lapse.
Try it yourself
Quick checks. Answers sit tucked under each question.
$1.5M worth, $500k underlying?
Round $1.5M up to $2M. Gap 1.5M minus 500k = $1M. Cost $225-$375 (base + $75).
$2.6M worth, $300k underlying?
Round $2.6M up to $3M. Gap 2.6M minus 300k = $2.3M. Cost $275-$425.
Questions
How much umbrella coverage?
Round net worth up to $1M steps with $1M minimum. Here $800k rounds to $1M.
What is the coverage gap?
Net worth minus underlying limits, floored at zero. Here $500,000 exposed.
What does umbrella cost?
$150-$300 for the first $1M, +$75 for the second, +$50 per added $1M after, per III layer math.
What underlying limits first?
About $250k auto and $300k home liability before carriers sell umbrellas, per III.
How do umbrellas pay?
Yes. Umbrellas pay past primary limits for covered liability and defense costs.
Do costs vary?
Yes. Prices vary by carrier, risk, and state; treat bands as planning figures.
Sources
- Triple-I: Umbrella Liability Policy (limits, cost bands)
- NAIC: What Is an Umbrella Policy
- NAIC: Annual Insurance Check-Up ($1M+ extensions)