What Is a PIP Injury Threshold for Suing After an Accident?
In states that use a no-fault system, getting hurt in a car accident does not automatically give you the right to sue the other driver — first, the injury has to clear a specific bar set by state law.
The short answer
In a no-fault state, personal injury protection is designed to cover medical bills and lost wages regardless of who caused the crash, in exchange for limiting lawsuits over minor injuries. To step outside that system and sue for pain and suffering, an injury generally has to meet a threshold set by the state — either a dollar amount in medical costs or a description of injury severity. Until that threshold is met, the injured party is typically limited to the no-fault benefits available under their own policy.
Why no-fault systems use a threshold
No-fault insurance was built around a tradeoff: drivers give up some ability to sue after a routine fender-bender, and in return, everyone gets faster access to payment for medical care and lost income without having to prove who was at fault. Without some kind of threshold, that tradeoff would not hold up, because nearly any injury could end up in court, which is exactly what a no-fault system was designed to reduce. The threshold acts as the line between injuries considered minor enough to stay inside the no-fault system and those serious enough to warrant a lawsuit.
Monetary thresholds versus verbal thresholds
States that use a threshold generally rely on one of two approaches, and the difference matters quite a bit.
- A monetary threshold. A dollar figure is set for medical expenses, and once a person’s bills exceed the state’s threshold, they may be able to pursue a lawsuit for damages beyond their PIP benefits.
- A verbal threshold. Instead of a dollar figure, the state defines certain categories of harm in words, such as permanent injury, significant disfigurement, or death, and a lawsuit is permitted only if the injury matches one of those descriptions, regardless of the medical bill total.
- A choice-based system. Some states let drivers choose, when buying a policy, between keeping full lawsuit rights and accepting a threshold in exchange for a lower premium.
How this plays out after an accident
After a crash, PIP benefits typically begin paying medical bills right away, without waiting to determine who was at fault, similar to how personal injury protection works generally. If the injury turns out to be minor, the claim usually stays within that no-fault process and never reaches a threshold question at all. If treatment continues and costs climb, or if the injury results in a lasting impairment, the threshold becomes relevant, because it determines whether the injured driver can also bring a claim against the at-fault driver’s liability coverage for damages that PIP does not cover, such as pain and suffering.
Why the distinction is easy to misunderstand
It is a common misconception that any accident with real injuries automatically opens the door to a lawsuit. In a state operating under no-fault rules, that is not how it works — the threshold has to be met first, and meeting it often depends on medical documentation, not just how an injury feels at the time. It is also worth understanding what happens on the other side of this system: once PIP coverage is used up, as covered in what happens when PIP benefits run out, the threshold question and the funding question become closely related, since a person may need to look toward a liability claim for both reasons at once.
The takeaway
A PIP threshold exists to keep minor accident claims inside the no-fault system while still leaving a path to a lawsuit for injuries serious enough to warrant one. Whether that path is defined by a dollar figure, a description of harm, or a choice made when the policy was purchased depends entirely on state law, and the details are worth understanding well before they become relevant.