What Do Per-Person and Per-Accident Liability Limits Mean?
A liability policy’s bodily injury coverage is almost never a single number. It’s usually written as a pair, and understanding why takes more than just knowing what each figure means on its own.
The short answer
The per-person limit caps how much liability coverage pays toward any one injured individual in an accident, while the per-accident limit caps the total paid across everyone injured in that same accident, no matter how many people that includes. The per-accident figure is always equal to or larger than the per-person figure, and in a crash involving several injured people, the per-accident cap can be reached even when no single person’s claim hits the per-person maximum.
How the two numbers interact
Picture a hypothetical policy with a 50/100 bodily injury structure — a per-person cap and a per-accident cap. If one driver is at fault in a crash that injures three passengers in the other car, each passenger’s claim is measured first against the per-person cap. But the sum of all three claims can’t exceed the per-accident cap, even if it’s larger than any single per-person figure. If total injury costs across the three passengers add up to more than the per-accident number, the shortfall isn’t covered by bodily injury liability at all, regardless of how much room was left in any individual’s per-person share.
A simple multi-victim example
Say an at-fault driver’s policy has a per-person cap of a certain amount and a per-accident cap set at twice that amount, and a crash injures four people in the other vehicle:
- Each person’s claim is checked individually first. No one person can collect more than the per-person cap, even if their medical costs are higher.
- All four claims are then added together. If the combined total exceeds the per-accident cap, payouts to each person are reduced proportionally so the total stays within that ceiling.
- The at-fault driver can still be personally responsible for the rest. Costs beyond both caps typically fall outside the liability policy entirely, which is one reason larger accidents with multiple injured parties can expose a driver to costs well beyond their coverage.
Why the gap between the two numbers matters
A policy with a per-person cap that’s much smaller than its per-accident cap is, in effect, betting that injury costs will be spread across several people rather than concentrated in one serious injury. A policy where the two numbers sit closer together offers less room to absorb a single catastrophic injury claim. Neither structure is right or wrong on its own; it depends on the kinds of accidents someone is trying to plan around, and how those numbers compare to state-minimum requirements that vary by location.
How this differs from property damage
Property damage liability typically works off its own separate per-accident cap, unrelated to the bodily injury per-person and per-accident figures. That means a crash with modest injuries but serious damage to another vehicle or nearby property draws from a completely different pool of coverage, which is part of why policies list three numbers rather than one.
What to weigh
Because the per-accident cap becomes the binding constraint in any multi-person accident, it’s worth thinking about realistic worst cases — a carpool, a rideshare trip, a car full of passengers — rather than assuming an accident will only ever involve one other injured person. How the fault itself gets divided in a crash, discussed in more detail under comparative negligence, can also change how much of these limits actually gets paid out.
The bottom line
Per-person and per-accident limits work together, not independently, and the per-accident number is what actually caps total exposure when more than one person is hurt in the same crash. Reading both figures — and understanding which one is likely to bind in a realistic accident scenario — gives a clearer picture of what a policy will and won’t cover than looking at either number alone.