Occurrence vs Claims-Made for Apartment Liability Coverage
Compare occurrence-based and claims-made liability policies for apartment buildings. Understand how the trigger mechanism affects coverage continuity and long-term costs.
| Factor | Occurrence-Based Liability | Claims-Made Liability |
|---|---|---|
| Coverage Trigger | Covers incidents that occur during the policy period, regardless of when the claim is filed | Covers claims that are first reported during the policy period, regardless of when the incident occurred (subject to the retroactive date) |
| Tail Exposure | No tail risk. If a claim arises years later from an incident during the policy period, coverage still applies under the original policy | If coverage lapses or is not renewed, an extended reporting period (tail) must be purchased to cover claims filed after the policy ends |
| Premium Pattern | Premiums are relatively level year over year, reflecting the full cost of covering all incidents in that policy period | Premiums start lower in the first year and increase as the policy matures, eventually reaching or exceeding occurrence-level pricing |
| Availability for Apartments | The standard form used by most general liability carriers for habitational risks | Less common for standard apartment general liability but sometimes used for professional liability, D&O, or EPLI coverages |
| Carrier Switching | Simple to switch carriers at renewal. The old policy covers past incidents, the new policy covers new ones | Switching carriers requires careful coordination of retroactive dates. Gaps in retroactive dates create uninsured periods |
| Long-Tail Claims | Naturally suited for long-tail exposures like bodily injury claims that may not surface for months or years after the incident | Can create coverage gaps for long-tail claims if the policy is not renewed continuously or if a tail endorsement is not purchased |
Most apartment general liability policies are written on an occurrence basis, meaning the policy in effect at the time of the incident provides coverage regardless of when the claim is actually filed. This is important for apartment owners because liability claims, particularly bodily injury claims from slip-and-fall accidents or habitability issues, can surface months or even years after the underlying incident. An occurrence policy eliminates concern about when the claim is reported, as long as the incident happened during an active policy period.
Claims-made policies work differently. Coverage applies only when the claim is both reported and the incident occurred after the policy's retroactive date. If an apartment owner switches from one claims-made carrier to another and the new carrier sets a later retroactive date, incidents that occurred during the gap period would not be covered by either policy. This creates a potential coverage hole that occurrence policies avoid entirely.
For standard apartment general liability and commercial umbrella coverage, occurrence-based policies are the industry norm and are generally the better choice for apartment owners. Claims-made forms are more commonly encountered in specialty coverages such as directors and officers liability, employment practices liability, and professional liability for property management companies. When dealing with claims-made policies in any context, apartment owners should pay close attention to retroactive dates, understand the cost and mechanics of tail coverage, and work with their broker to ensure there are no gaps when switching carriers.