Insurance Limit Requirements: Benchmarks and How to Verify

Insurance limits are the maximum amounts an insurance policy will pay for covered claims. They are arguably the most consequential numbers on a Certificate of Insurance — and the most frequently misconfigured in compliance programs. Setting limits too low leaves your organization exposed. Setting them too high makes it impossible for vendors to comply. Understanding how limits work, what the industry benchmarks are, and how to verify them on a COI is essential for any compliance professional.

Types of Insurance Limits

Before examining benchmarks, you need to understand the different types of limits and what each one controls.

Per Occurrence Limit (Each Occurrence)

The per occurrence limit is the maximum the policy will pay for any single covered event — one accident, one incident, one claim. If a contractor's employee causes a fire that damages three floors of your building, the per occurrence limit is the maximum payout for that single fire, regardless of how many parties are affected.

This is typically the most important limit for day-to-day risk management because most claims arise from single events.

General Aggregate Limit

The general aggregate is the maximum total amount the policy will pay for all covered claims during the policy period (usually one year). Once the aggregate is exhausted, the policy pays nothing more until it renews — even if individual claims are below the per occurrence limit.

Example: A contractor has a $1,000,000 per occurrence limit and a $2,000,000 general aggregate. In January, a $900,000 claim is paid. In March, a $750,000 claim is paid. The aggregate has now been reduced to $350,000. A third claim in August — even if it is only $500,000 — will only be covered up to the remaining $350,000.

This is why the general aggregate is typically set at two times (2x) the per occurrence limit. But it is also why a vendor with a history of claims may have a dangerously depleted aggregate mid-policy term, even if their limits look adequate on the certificate.

Combined Single Limit (CSL)

A combined single limit applies a single limit to both bodily injury and property damage combined, per occurrence. This is most commonly seen in automobile liability coverage. Instead of separate limits for bodily injury per person, bodily injury per accident, and property damage, a CSL of $1,000,000 means the policy pays up to $1,000,000 total per accident for any combination of bodily injury and property damage.

CSL is generally preferred over split limits because it provides more flexibility. A $1,000,000 CSL is more useful than $300,000/$500,000/$100,000 split limits in most commercial scenarios.

Split Limits

Split limits establish separate maximums for different categories of loss within a single coverage type. The most common format for automobile liability is:

• Bodily injury per person: Maximum paid for injuries to any one person
• Bodily injury per accident: Maximum paid for all injuries in a single accident
• Property damage per accident: Maximum paid for property damage in a single accident

A typical split limit might be expressed as $300,000 / $500,000 / $100,000 (also written as 300/500/100).

Split limits are less common in commercial insurance and generally considered inferior to CSL for compliance purposes because the individual sub-limits can be inadequate even when the aggregate numbers look sufficient.

Statutory Limits

Statutory limits apply specifically to Workers' Compensation insurance. "Per Statute" means the policy provides benefits as required by the state's workers' compensation law — there is no dollar limit because state law determines the benefits owed to injured workers. Every state sets its own workers' compensation benefit schedules.

When you see "Per Statute" or "Statutory" on a COI for Workers' Compensation, that is correct. There should not be a dollar amount — the limit is whatever the applicable state law requires.

Each Accident / Disease - Each Employee / Disease - Policy Limit

These three limits appear in the Employers' Liability section of a Workers' Compensation policy. They are distinct from the statutory Workers' Comp benefits:

• Each Accident: Maximum paid per workplace accident for an employee's bodily injury claim beyond Workers' Comp benefits
• Disease - Each Employee: Maximum paid per employee for occupational disease claims
• Disease - Policy Limit: Maximum paid for all occupational disease claims during the policy period

Standard Employers' Liability limits are $500,000 / $500,000 / $500,000 or $1,000,000 / $1,000,000 / $1,000,000 for higher-risk industries.

Products-Completed Operations Aggregate

This is the maximum the policy will pay for claims arising from products the insured has sold or operations the insured has completed. For construction, this is particularly important because it represents the limit available for claims that arise after the contractor has finished their work and left the site.

Industry Benchmark Limits

The following benchmarks represent standard commercial requirements. These are not minimums — they are the most commonly required limits based on industry norms and risk profiles. Your organization should adjust based on its specific risk tolerance, contract values, and loss history.

Commercial Real Estate (CRE)

CRE is the baseline for most commercial compliance programs. These limits reflect the standard expectations of institutional landlords, REITs, and property management companies.

Construction (General Contractors / Subcontractors)

Construction carries elevated limits due to the severity of potential claims — structural failures, catastrophic injuries, and environmental contamination can generate claims in the tens of millions.

Low-Risk Vendors (Janitorial, Landscaping, Office Services)

Low-risk vendors perform work with lower severity exposure. A janitorial company is unlikely to cause a multi-million dollar loss (though slip-and-fall claims from their operations can still be significant).

Technology / Professional Services

For technology vendors, Professional Liability and Cyber Liability are often more important than General Liability. The risk is in errors, omissions, and data breaches rather than physical damage.

When to Require Higher-Than-Standard Limits

Standard benchmarks are appropriate for most vendor relationships, but several situations warrant higher limits:

High-Value Projects

When the potential loss exceeds standard limits — a $100 million construction project, a renovation of an occupied high-rise, a data center build — standard $1M/$2M GL limits are insufficient. The general rule is that available limits should be proportional to the potential loss severity. For high-value projects, this often means requiring $5M or $10M in primary GL or supplementing with umbrella requirements.

High-Risk Trades

Certain trades carry disproportionate risk relative to contract value. Demolition, asbestos abatement, crane operations, roofing, and electrical work all have high claim severity profiles. A $50,000 electrical subcontract can generate a $10 million fire loss. Requiring elevated limits — or at minimum, adequate umbrella coverage — is appropriate for these trades.

Contractual Requirements

Owner-controlled insurance programs (OCIPs and CCIPs) and institutional investors often mandate specific minimum limits that exceed industry standards. If your contract with the property owner requires $10M in umbrella coverage from all subcontractors, you must flow that requirement down to your vendors regardless of what industry benchmarks suggest.

Locations with High Jury Verdicts

Nuclear verdicts — jury awards exceeding $10 million — have become more common in jurisdictions like Florida, Texas, California, and New York. Organizations with properties in these jurisdictions may need to require higher limits to account for the litigation environment.

Umbrella Supplementation: How It Works

A common question in limit verification is whether an umbrella or excess policy can supplement inadequate primary limits. The answer is yes, with conditions.

The Math

If your requirement is $1,000,000 GL per occurrence, and a vendor carries:

• Primary GL: $500,000 per occurrence
• Umbrella: $5,000,000 per occurrence (following form over GL)

The vendor effectively has $5,500,000 available per GL occurrence. The $500,000 primary limit is below your requirement, but the umbrella "drops down" once the primary limit is exhausted. For a $1,000,000 claim, the primary pays $500,000 and the umbrella pays $500,000.

This satisfies a $1,000,000 requirement — but only if the umbrella follows form over the primary GL policy and does not have exclusions that narrow coverage compared to the primary.

Conditions for Umbrella Supplementation

1. Following form. The umbrella must follow the terms of the underlying primary policy. If the umbrella has additional exclusions not present in the primary, it may not respond to certain claims that the primary would cover.
2. Scheduled underlying. The umbrella must list the primary GL policy as scheduled underlying insurance. If the GL is not scheduled, the umbrella may not provide excess coverage over it.
3. Self-insured retention (SIR). Some umbrella policies have an SIR that applies when the primary is exhausted or does not cover a specific claim. The SIR must be funded by the insured before the umbrella responds.
4. No aggregate gap. If the primary aggregate is depleted, the umbrella's response depends on its terms. Some umbrellas drop down to cover claims that the exhausted primary would have covered; others do not.

Reading Limits on the ACORD 25

The ACORD 25 presents limits in a structured layout with each coverage type in its own section. Here is how to read each section:

General Liability Section

The GL section contains multiple limit fields:

Key verification points:

• Each Occurrence and General Aggregate are the primary fields to verify against requirements
• Products/Completed Operations Aggregate is critical for construction
• General Aggregate should be at least 2x the Each Occurrence limit

Automobile Liability Section

Look for the "COMBINED SINGLE LIMIT (Ea accident)" field. This is the CSL. If the vendor has split limits instead, they will appear as separate BI and PD amounts. Verify the coverage symbol — "Any Auto" is broadest; "Owned Autos Only" is the narrowest and may leave gaps for hired or non-owned vehicles.

Umbrella/Excess Section

The umbrella section shows:

• EACH OCCURRENCE: Per occurrence excess limit
• AGGREGATE: Total excess limit for the policy period
• Occurrence vs. Claims-Made: The policy form basis
• Retention/Deductible: Any self-insured retention

Workers' Compensation Section

The WC section should show "PER STATUTE" with a checkmark. The three Employers' Liability limits appear below: E.L. EACH ACCIDENT, E.L. DISEASE - EA EMPLOYEE, E.L. DISEASE - POLICY LIMIT.

Per-Project Aggregate: CG 25 03

The standard general aggregate applies across all of the insured's operations during the policy period. This means a contractor working on five projects simultaneously has one aggregate shared across all five. A large claim on one project depletes the aggregate available for your project.

The CG 25 03 — Designated Construction Project(s) General Aggregate Limit endorsement modifies this by applying a separate aggregate to each designated construction project. This is a significant protection for project owners and general contractors because it ensures that the full aggregate limit is available for claims arising from their specific project.

When to require CG 25 03:

• Large construction projects ($5M+)
• Multi-year projects where aggregate erosion risk is higher
• Projects involving high-risk trades
• When the contractor works on many projects simultaneously

How to verify: Look for "CG 25 03" referenced in the Description of Operations section or in the policy endorsement schedule. The project name or address should be identified.

Limit Adequacy Analysis

Determining whether a vendor's limits are "adequate" goes beyond comparing numbers on a certificate to numbers on a requirement schedule. True limit adequacy analysis considers:

1. Loss Severity Potential

What is the worst plausible loss this vendor could cause? A window washing company operating at 40 stories has a different worst-case scenario than a window washing company operating at two stories. Match limits to realistic loss severity, not just industry benchmarks.

2. Aggregate Erosion

A vendor with $2M aggregate limits in October may only have $500,000 remaining if they had claims earlier in the year. While you typically cannot verify remaining aggregate availability from a certificate, you can:

• Request loss runs (claims history) from high-risk vendors
• Time your compliance verification close to the policy inception date when the aggregate is fresh
• Require higher aggregates from vendors with known claims history

3. Additional Insured Impact

Remember that additional insured claims consume the vendor's limits. If a vendor has named 50 additional insureds and one of them has a large claim, that reduces the limits available for your claim. This is another argument for requiring umbrella coverage — it provides a buffer above the primary limits that may be shared with many additional insureds.

4. Inflation and Verdict Trends

Limits that were adequate five years ago may not be adequate today. Medical costs, construction costs, and jury awards all trend upward. Review your limit requirements annually and adjust for inflation and litigation trends.

5. Defense Cost Inclusion

Some policies include defense costs within the policy limits (called "burning limits" or "defense inside limits"). This means every dollar spent on lawyers reduces the amount available to pay a judgment. Others pay defense costs in addition to the limits. If a vendor's policy includes defense costs within limits, the effective limit available for judgments is lower than the stated limit.

Professional Liability policies almost always include defense within limits. General Liability policies almost never do (defense is in addition to limits on standard ISO GL forms). Umbrella policies vary.

Common Limit Verification Mistakes

Mistake 1: Checking only the per occurrence limit. The per occurrence limit matters for individual claims, but the aggregate matters for total exposure. A vendor with $1M per occurrence and $2M aggregate who has already had $1.5M in claims this year only has $500,000 of aggregate remaining.

Mistake 2: Ignoring the Products/Completed Operations aggregate. For construction and manufacturing, this aggregate is as important as the general aggregate. It controls how much is available for claims arising after work is complete.

Mistake 3: Accepting split auto limits when CSL is required. Split limits of 300/500/100 have a maximum per-accident payout of $600,000 ($500K BI + $100K PD). If your requirement is $1,000,000 CSL, split limits of 300/500/100 do not satisfy it.

Mistake 4: Not verifying umbrella follows form. An umbrella listed on the certificate is only useful if it actually provides excess coverage over the primary policy you are evaluating. If the umbrella excludes the coverage type in question, its limits are irrelevant.

Mistake 5: Setting the same limits for all vendors. A roofing contractor and an office supply delivery company have vastly different risk profiles. Tiered requirements — with higher limits for higher-risk vendors — are more effective and more achievable for vendors.