How much does commercial umbrella insurance cost?

The one published price, and what it leaves out

No regulator or statistical agency publishes what businesses pay for an umbrella. Among the insurers and brokers whose own cost pages we checked, only Insureon gives figures:

• Insureon (online broker, page updated April 17, 2026): “For Insureon customers, commercial umbrella insurance costs an average of $86 per month.” Annual premiums range “from around $400 to over $7,000.” 24% of its small-business customers pay less than $50 a month and 54% pay under $100⁠¹.
• The Hartford gives no price. It says umbrella costs vary by state and depend on the amount of underlying coverage, the limit, the type of business and its size⁠².
• ERGO NEXT gives no price. It sells the umbrella as an add-on to its own general liability policy, with $1 million or $2 million of extra limit⁠⁵.

Three limits on Insureon’s number:

1. “Average” is Insureon’s word

   Its general liability page says its figures are calculated from “the median cost of policies sold” to its small-business customers⁠¹⁷; the umbrella page gives no method. Treat $86 as a midpoint for Insureon’s book, not a defined statistic.

2. The limit is not stated

   A $1 million umbrella and a $5 million umbrella are different products. Insureon lists the limit as a price factor but does not say which limits its customers bought⁠¹.

3. The customers are small

   Insureon is an online agency and describes these as its “small business customers”⁠¹. The spread it reports, from $400 to over $7,000 a year, shows how much the premium depends on the business underneath it⁠¹.

The underlying policies and the umbrella are bought together, so budget them together. For the policies an umbrella sits on, see general liability, commercial auto and workers’ compensation, which includes employer’s liability.

Umbrella or excess: what the extra layer does

Both policies pay after an underlying policy’s limit is used up. They differ in how many policies they extend and whose wording they use.

• Excess liability “extends the limits on one specific liability policy,” in The Hartford’s definition⁠². A pure follow-form excess policy adopts the terms of the policy beneath it, so it covers the same things and excludes the same things.
• Commercial umbrella is “a type of excess liability insurance that extends the limits of different policies”⁠². Insureon lists the three it usually sits on: general liability, commercial auto and employer’s liability⁠¹. An umbrella has its own policy form, and that form can be broader than the underlying policies in some places and narrower in others.

Insurers mix the two. Chubb’s commercial umbrella has an excess follow form Coverage A, which “adopts the provisions of your scheduled primary insurance.” Its umbrella Coverage B “closes gaps in your primary liability program”⁠⁶. The Hartford’s excess unit offers A/B umbrella forms, short-form and follow-form policies, and traditional excess, with up to $25 million of capacity in one program⁠⁴.

What neither one covers: your own property. The Hartford gives the example of a fire whose damage exceeds the property limit. The umbrella pays nothing, because it extends only liability policies⁠².

“Drop-down” means two different things

1. Over an eroded or exhausted aggregate

   Your general liability policy has an annual aggregate. When earlier claims in the year use it up, a drop-down umbrella starts paying immediately above what is left. Chubb’s form says its insurance applies “immediately excess of the eroded or exhausted primary limits.” It also does not require you to reinstate or replace the eroded limits⁠⁶. The Hartford notes that no deductible applies when the umbrella responds after the primary insurance is exhausted⁠³.

2. Over a gap in the underlying coverage

   Some claims are covered by the umbrella but by none of the underlying policies. For those, the umbrella pays from the first dollar of the claim above a self-insured retention (SIR), the amount you pay yourself. Chubb advertises that it has no SIR under its Coverage B: “You do not pay the first $10,000 of such losses” (where state law allows)⁠⁶. A product that advertises waiving the retention shows that other forms keep one. Read the retention on your declarations page.

Two more terms decide what a claim costs you. Under Chubb’s form, defense costs “will not erode the limits,” so the full limit stays available for damages⁠⁶. And if you let an underlying policy lapse, or its insurer becomes insolvent, Chubb’s umbrella is not invalidated: it remains available “as though primary insurance were maintained and collectible”⁠⁶. That means it still pays only above the primary limit; the primary layer the missing policy would have paid is yours.

The underlying limits an umbrella requires

The umbrella insurer lists the policies it sits on, and the limits each must carry, in a schedule of underlying insurance. Without those policies there is no umbrella. Insureon: “You need to have general liability, employer’s liability, or commercial auto liability insurance before you can get umbrella coverage”⁠¹. The Hartford: if you don’t have general liability, “you can’t get commercial umbrella coverage”⁠². An umbrella from one insurer can sit over underlying policies from others: The Hartford can extend a commercial auto policy written by a different company⁠². ERGO NEXT sells its umbrella as an add-on to its own general liability policy⁠⁵.

Each of the three underlying policies carries its own limits, and contracts set each one separately:

Both states let you combine a lower primary limit with an umbrella to reach the contract figure. Oregon’s condition matters when you buy: the umbrella must give “coverage at least as broad as provided on the underlying insurance”⁠⁷. A stand-alone umbrella form with exclusions the primary policy lacks would not qualify. Idaho’s employer’s liability requirement is written for the workers’ comp policy, without the umbrella wording of the GL and auto clauses⁠⁸.

How the umbrella layer is priced

The Hartford explains the basic economics: “Because any underlying policy limits are used first, insurers typically can write commercial umbrella policies at relatively low rates”⁠³. The umbrella insurer pays only the part of a claim above the underlying limits. Insureon says an umbrella “is often less expensive than increasing your primary policy limits”⁠¹.

So the price depends on what sits underneath and how big the layer is. The factors the three companies name:

• The underlying program. The Hartford lists “amount of underlying coverage” first⁠². Higher underlying limits move the umbrella’s starting point (its attachment point) up, so fewer claims reach it. The quality of the underlying policies matters as much: an umbrella over a large truck fleet sits over the line Marsh calls “challenging,” where double-digit auto rate increases were common in Q2 2026⁠¹³.
• The limit you buy. The Hartford says insurers write business umbrellas with aggregate limits from $1 million to $15 million⁠². ERGO NEXT offers $1 million or $2 million⁠⁵. Each added $1 million is a new layer, priced separately.
• Industry, revenue, headcount and location. Insureon names construction, trucking and manufacturing as costing more than consulting or accounting. It also lists revenue, number of employees, staff turnover, location (including “highly litigious areas”) and claims history⁠¹.
• Contract and lease requirements set the limit you need, and ERGO NEXT lists them as a price factor⁠⁵.

No insurer or regulator publishes a price per $1 million of umbrella limit, so this page gives none. What the published sources do show is the direction. Marsh reported for Q2 2026 that “mid- and upper-excess layer increases were generally more moderate” than umbrella increases. It also reported that rising claim severity “continued to push attachment points higher, particularly for large fleets and operations in high-litigation states”⁠¹³. In other words, the first layer above your primary policies is where price pressure is greatest.

Worked example: meeting the Idaho limits with a layer

This is our illustration, using Idaho’s contract limits⁠⁸ and no premiums.

1. What the business carries

   General liability $1M per occurrence and $2M aggregate; auto liability $500,000 combined single limit; employer’s liability $500,000 each accident, $500,000 disease policy limit, $500,000 disease each employee.

2. What the contract asks

   General liability $1M/$2M (already met); auto $1M each accident (short by $500,000); employer’s liability $1M/$1M/$1M (short by $500,000 on each).

3. Option A: raise the primary limits

   Raise auto to $1M and employer’s liability to $1M/$1M/$1M. Two policies change; the umbrella question goes away.

4. Option B: add a $1M umbrella over all three

   Auto becomes $500,000 primary plus $1M umbrella, or $1.5M per accident, and the auto clause’s “and/or Commercial Umbrella” wording allows that⁠⁸. Employer’s liability is different. Idaho’s EL clause does not mention an umbrella, so check with the contracting agency whether umbrella limits count toward it, or raise the EL limit itself.

5. Check the umbrella’s schedule

   The umbrella insurer sets its own minimum underlying limits. If its schedule requires more than $500,000 on auto, Option B also means raising the auto limit, and the comparison changes.

Quote both options on the same terms. The umbrella usually extends GL and auto at once, which a single raised primary limit cannot.

Who requires umbrella limits

Contracts, leases and regulators set the limits that make a business look at an umbrella. ERGO NEXT notes these limits “may be required by some contracts or commercial leases”⁠⁵. Rules we could confirm in official documents:

• State and agency contracts. Oregon DOT and the state of Idaho both allow umbrella or excess limits to make up their required limits, on the terms in the table above⁠⁷⁠⁸.
• Interstate trucking. Federal rules set the minimum public liability limit for for-hire interstate carriers of general freight in vehicles of 10,001 pounds or more at $750,000; hazardous materials carry $1 million or $5 million⁠¹⁰. The federal endorsement on these policies, Form MCS-90, lets an insurer certify that its policy is “excess” over “the underlying limit”⁠⁹. A carrier can therefore meet the federal figure with a primary auto policy plus an excess layer. Contracts with shippers and brokers can set higher limits; we found no official source for a standard figure. See the trucking page and the federal and state commercial auto minimums.
• Construction and grant-funded work. Oregon DOT requires each grantee to impose these limits on its subcontractors and to write them into every subcontract⁠⁷. See general contractors.

Why umbrella prices keep rising

In CIAB’s survey, umbrella has risen every quarter for almost nine years. Three trackers, each measuring something different, agree on the direction for Q2 2026:

• CIAB (member brokers, average premium change at renewal): umbrella +5.3%, “the largest increase out of all lines,” and the 35th consecutive quarterly increase. The rise had slowed to a 29-quarter low of 4.7% in Q4 2025 before picking up again. About 40% of respondents saw umbrella underwriting capacity shrink, and carriers “were more conservative with limits”⁠¹¹. All lines together averaged −0.3%⁠¹¹.
• Ivans (same-policy renewal change, data from more than 38,000 agencies and 700 carriers and MGAs): umbrella +7.96%, down from 9.36% in Q1 and the highest of its six lines⁠¹².
• Marsh (mostly larger client accounts): umbrella/excess +11% absolute and +15% risk-adjusted, down from 18% risk-adjusted in Q1. Some insurers capped their capacity on a single risk at $10 million, and capacity “for unsupported and stand-alone umbrella placements was constrained”⁠¹³.

CIAB: average premium change at renewal reported by member brokers, Q2 2026 (April 1-June 30, 2026), released 18 Aug 2026. Ivans: average renewal premium change on small commercial policies, Q2 2026. Premium changes include changes in exposure as well as rates. All series and method.

The claims behind the prices

The reason CIAB and Marsh give is claim severity at the top of liability programs, where umbrellas sit.

• Swiss Re Institute (a reinsurer’s research unit, September 2024): U.S. commercial casualty losses grew 11% a year over five years, to $143 billion in 2023. Its social inflation index, which measures claim growth above economic inflation, reached 7% in 2023, the first time in two decades it peaked at that level. U.S. liability lines exposed to bodily injury recorded $43 billion of cumulative underwriting losses over those five years, and “capacity available to global businesses has significantly declined.” In 2023 alone, 27 U.S. court cases awarded more than $100 million each⁠¹⁴.
• CAS and Triple-I (October 2025): legal system abuse and related litigation trends added $231.6 billion to $281.2 billion to U.S. liability losses over the decade to year-end 2024. The estimate includes $52.0 to $70.8 billion in commercial auto liability (22.6% to 30.8% of booked losses) and $83.4 to $103.3 billion in occurrence-based other liability (27.4% to 34.0%)⁠¹⁵. This research is industry-funded: Triple-I is a membership organization that “addresses the issues challenging insurers, agents, and brokers”⁠¹⁶. “Legal system abuse” is the study’s own term.
• CIAB’s commentary cites two broker reports, CAC’s and Brown & Brown’s. Both identify nuclear verdicts as the main driver, with commercial auto a leading source⁠¹¹.

Why this hits umbrellas hardest: any part of a verdict above the primary limit is paid by the umbrella, up to its own limit, so growth in very large awards falls mainly on the umbrella and excess layers. Umbrella premiums have moved faster than primary GL: CIAB brokers reported GL at +1.8% in the same quarter⁠¹¹.

What lowers the umbrella premium

• Buy the limit the contract sets. The Idaho and Oregon contracts above ask for $1 million to $2 million in total limits⁠⁷⁠⁸. A larger umbrella means more layers to price.
• Compare primary and umbrella quotes for the same total limit. Insureon says an umbrella is “often less expensive than increasing your primary policy limits,” and The Hartford calls it “cheaper than traditional liability coverage”⁠¹⁠³. Your schedule’s minimum underlying limits decide whether that holds for you.
• Work on the auto exposure. The broker reports CIAB cites name commercial auto as one of the main sources of nuclear verdicts, and Marsh reported double-digit auto liability increases as common⁠¹¹⁠¹³. Fleet size, drivers and loss history feed directly into the umbrella price.
• Keep the underlying policies in force and matching. A lapse leaves you paying the missing primary limit; even Chubb’s form, which keeps the umbrella valid, applies only as though the primary insurance were in place⁠⁶. Oregon’s contracts require follow-form coverage for the same reason⁠⁷.
• Choose the retention deliberately. Insureon lists the deductible or self-insured retention as a price factor; a higher one lowers the premium and increases what you pay on uncovered-by-primary claims⁠¹.
• Keep a clean claims record. Insureon names claims history as a price factor and says businesses with clean records “typically qualify for lower rates”⁠¹. For how loss history and modifiers feed a premium, see how premiums are calculated.

Sources

1. 1
   Insureon, Commercial umbrella insurance (updated April 17, 2026) Checked 13 Oct 2026 · Back to text ↑
2. 2
   The Hartford, Commercial umbrella insurance Checked 13 Oct 2026 · Back to text ↑
3. 3
   The Hartford, Commercial umbrella insurance: surprisingly affordable Checked 13 Oct 2026 · Back to text ↑
4. 4
   The Hartford, Hartford Excess Solutions: umbrella and excess liability (for agents and brokers) Checked 13 Oct 2026 · Back to text ↑
5. 5
   ERGO NEXT, Commercial umbrella insurance (modified Sept. 9, 2026) Checked 13 Oct 2026 · Back to text ↑
6. 6
   Chubb, Chubb Commercial Excess and Umbrella Insurance, Form 07-01-0079 (rev. 6/16) Checked 13 Oct 2026 · Back to text ↑
7. 7
   Oregon Department of Transportation, Exhibit F: Subcontractor insurance requirements (state fiscal year grants) Checked 13 Oct 2026 · Back to text ↑
8. 8
   Idaho Division of Purchasing, Insurance requirements for state contracts (revised April 29, 2026) Checked 13 Oct 2026 · Back to text ↑
9. 9
   Federal Motor Carrier Safety Administration, Form MCS-90, Endorsement for motor carrier policies of insurance for public liability Checked 13 Oct 2026 · Back to text ↑
10. 10
    eCFR, Office of the Federal Register, 49 CFR 387.9, Financial responsibility, minimum levels Checked 13 Oct 2026 · Back to text ↑
11. 11
    The Council of Insurance Agents & Brokers (CIAB), Commercial Property/Casualty Market Index, Q2 2026 Checked 13 Oct 2026 · Back to text ↑
12. 12
    Ivans (Applied Systems), Ivans Index Q2 2026 results released Checked 13 Oct 2026 · Back to text ↑
13. 13
    Marsh, Global Insurance Market Index: US insurance rates, Q2 2026 Checked 13 Oct 2026 · Back to text ↑
14. 14
    Swiss Re, Litigation costs drive US liability claims by 57% over past decade (sigma 4/2024 press release, Sept. 7, 2024) Checked 13 Oct 2026 · Back to text ↑
15. 15
    Casualty Actuarial Society, New CAS and Triple-I analysis quantifies impact of legal system abuse on liability insurance (Oct. 31, 2025) Checked 13 Oct 2026 · Back to text ↑
16. 16
    Insurance Information Institute (Triple-I), Triple-I membership Checked 13 Oct 2026 · Back to text ↑
17. 17
    Insureon, How much does general liability insurance cost? Checked 13 Oct 2026 · Back to text ↑

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