If you’ve ever looked at a commercial insurance policy or certificate of insurance, you’ve probably seen limits listed like:
$1,000,000 Per Occurrence / $2,000,000 General Aggregate
While these numbers appear on almost every commercial general liability policy, many business owners aren’t entirely sure what they mean — or why they matter.
Understanding how per occurrence and general aggregate limits work can help you make more informed decisions about your business insurance coverage.
What Is a Per Occurrence Limit?
The per occurrence limit is the maximum amount an insurance policy will pay for a single covered claim or incident.
In simple terms:
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One accident or event = one occurrence
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The per occurrence limit is the cap for that single event
Example:
If your policy has a $1,000,000 per occurrence limit and a covered claim results in $750,000 in damages and legal costs, the policy may respond up to that amount (subject to policy terms).
If a single claim exceeds the per occurrence limit, the business may be responsible for costs above that limit unless other coverage (such as an umbrella policy) applies.
What Is a General Aggregate Limit?
The general aggregate limit is the maximum amount the policy will pay for all covered claims combined during the policy period, typically one year.
Once the general aggregate limit is reached, the policy will no longer pay for additional covered claims during that policy term.
Example:
If your policy has a $2,000,000 general aggregate limit:
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Multiple claims throughout the year share that total limit
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Once the $2,000,000 is exhausted, no further claims are paid for that policy period
This means even smaller claims can add up over time.
How Per Occurrence and Aggregate Limits Work Together
Both limits apply at the same time.
A typical commercial general liability policy might work like this:
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$1,000,000 per occurrence = maximum for any single claim
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$2,000,000 general aggregate = maximum for all claims combined during the year
You could have:
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Two $1,000,000 claims and exhaust the aggregate
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One $1,000,000 claim and still have $1,000,000 left for the rest of the year
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Several smaller claims that collectively erode the aggregate
Understanding both limits is important when evaluating risk.
Why Aggregate Limits Matter More Than Many Businesses Realize
Business owners often focus on the per occurrence limit because it’s easier to understand. However, the aggregate limit can be just as important.
Businesses with:
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High customer traffic
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Multiple job sites
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Frequent service calls
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Long operating hours
may face multiple claims in a single year, increasing the likelihood that the aggregate limit could be reduced or exhausted.
Products and Completed Operations Aggregates
Some commercial policies also include a separate aggregate for products and completed operations.
This typically applies to:
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Businesses whose work continues to create exposure after completion
This aggregate is separate from the general aggregate, but it operates in a similar way — capping total payments for that category of claims during the policy period.
How These Limits Affect Certificates and Contracts
Many contracts, leases, and vendor agreements specify required limits, such as:
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$1,000,000 per occurrence
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$2,000,000 general aggregate
If your aggregate limit is exhausted during the policy period, you may still technically carry the policy — but it may no longer satisfy contractual insurance requirements.
This is one reason some businesses review umbrella or excess liability coverage to increase overall limits.
When Higher Limits or Umbrella Coverage May Make Sense
Businesses may consider higher limits or umbrella coverage if they:
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Work on larger projects
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Have contracts requiring higher limits
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Operate in higher-risk environments
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Want additional protection beyond standard policy limits
Umbrella policies typically sit on top of underlying liability policies and may provide additional per occurrence and aggregate protection, subject to their own terms.
Reviewing Your Limits with Your Agent
There is no one-size-fits-all answer when it comes to liability limits.
When reviewing per occurrence and aggregate limits, it’s helpful to consider:
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The nature of your operations
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The number of clients or customers you interact with
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Contractual requirements
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The potential severity of a worst-case claim
An insurance review can help ensure your limits align with your actual exposure.
Final Thoughts
Per occurrence and general aggregate limits are foundational concepts in commercial insurance, but they’re often misunderstood.
Taking the time to understand how they work — and how they apply to your business — can help reduce surprises when claims occur and support better long-term planning.
Learn More or Request a Coverage Review
If you have questions about your liability limits or want to review how your coverage is structured, our team can help.
Call: 781-396-2116
Contact: Request a review online
Insurance coverage cannot be added, deleted, or changed until confirmed in writing from our office.
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