Understanding Policy Limits, Sub-Limits and Aggregate Caps

Insurance limits set the maximum your insurer will pay — but a single policy can contain several different types of limit working together. This guide explains per-occurrence limits, aggregate limits, sub-limits, and how gaps in coverage appear.

The four types of limit

Per-occurrence limit
The maximum paid for any single claim or incident. If a claim exceeds this, you bear the excess above the limit personally.
Example: £500,000 per liability claim.
Aggregate limit
The total the insurer will pay across all claims in the policy period. Once exhausted, no further claims are covered until renewal.
Example: £1,000,000 aggregate across all claims in the year.
Sub-limit
A lower limit applying to a specific category of loss within the overall policy limit. Common for valuables, bicycles, electronics, and business equipment.
Example: £1,500 per single article within a £50,000 contents policy.
Per-person limit
Used in liability policies to cap the amount paid to any one injured party, even if the overall limit is higher.
Example: £100,000 per person in a £500,000 liability policy.

How limits interact in a claim

Multiple limits can apply to the same claim, with each one potentially reducing the payout. The order of application is typically: sub-limit first, then per-occurrence limit, then aggregate.

Example: Contents policy claim

Overall contents limit: £40,000
Single article sub-limit: £1,500
Camera equipment lost in burglary (replacement value): £3,200
Claim paid: £1,500 (sub-limit applies; overall limit is not reached)
Gap you bear: £1,700

The fix for this particular gap is to schedule high-value items individually on the policy. A scheduled item is listed by name, description, and agreed value — and is paid at that agreed value rather than the sub-limit. This typically adds a small amount to the premium.

Where to find limits in your policy

Limits appear in two places in a standard policy document:

  • The declarations page (schedule) — the one-page summary at the front of the policy showing your overall sum insured and premium. This is where headline limits appear.
  • The insuring agreement and conditions — where sub-limits and per-category limits are typically buried in the body of the policy. These require a careful read to find.

For a full guide to where each type of information sits in a policy document, see the five parts of every policy. The limit glossary entry covers the key terminology used in policy documents.

Checking whether your limits are adequate

The test for adequacy is whether the limit covers your realistic worst-case loss for each category that matters to you — not just the total. Work through each sub-limit against the value of items you own in that category:

  • Single-article sub-limit vs the value of your most expensive item (jewellery, camera, bicycle, watch)
  • Liability limit vs the potential size of a claim from your specific activity or property
  • Business interruption limit vs your actual monthly revenue and fixed costs
  • Medical limit in travel insurance vs the cost of emergency repatriation from your destination

Use the policy comparison tool to place two policies side by side and see where the limits diverge. For the relationship between limits and under-insurance in home cover specifically, see our news article on home rebuild costs and the average clause.

Policy limits FAQ

Frequently asked questions