By Brad Burton, Founder & Editor·Updated June 2026·How we research this
2 Years
Statute of limitations (A.R.S. §12-542)
Pure CF
Comparative fault — any % can recover
$0 Cap
Constitutionally barred damage limits

The Arizona Statute of Limitations for Personal Injury

Arizona gives injury victims two years to file a lawsuit. That deadline is set by A.R.S. §12-542, which covers actions for personal injury, wrongful death, and property damage. Missing that window almost always means the court dismisses the case — regardless of how strong the underlying claim is.

The clock typically starts on the date of injury. For car accidents in Phoenix or Tucson, that is the crash date. For wrongful death claims, A.R.S. §12-542 separately provides that the cause of action accrues at the time of death — not at the time of the underlying injury.

Arizona recognizes a discovery rule for latent injuries: the two-year period can begin when the plaintiff discovers (or reasonably should have discovered) both the injury and its cause. This matters most in toxic exposure cases and certain medical situations, where harm may not surface for months or years after the event.

Exceptions and Tolling Provisions

Minors injured before age 18 typically have tolled deadlines — the statute is suspended while the child is a minor. The specific rules depend on case type and facts, so an Arizona attorney should confirm the exact deadline for any minor's claim.

Government defendants — 180-day notice required first: If your injury was caused by a city, county, the State of Arizona, a public school, or any other public entity, A.R.S. §12-821.01 requires you to file a formal notice of claim within 180 days of the injury — before you can file a lawsuit at all. Missing this notice deadline bars the claim entirely, separate from the two-year suit filing deadline. This catches many injured people off guard, particularly in cases involving Maricopa County vehicles, ADOT construction zones, or municipal property like parks and government buildings.

The practical takeaway: two years sounds long, but building a strong case — gathering records, retaining experts, completing medical treatment — takes time. Most Arizona personal injury attorneys recommend contacting counsel within the first few months after an injury. Waiting until month 23 is a bad idea even when the claim is otherwise solid.

Arizona's Negligence Rule: Pure Comparative Fault

Arizona follows pure comparative fault under A.R.S. §12-2505. A plaintiff can recover damages even if they were mostly — or overwhelmingly — responsible for their own injury. Their recovery is simply reduced by their percentage of fault.

Consider a concrete example: a jury awards $100,000 in damages but finds the plaintiff 70% at fault for stepping into traffic without checking for oncoming vehicles. Under pure comparative fault, the plaintiff still collects $30,000. A state using the more common modified comparative fault rule (typically a 51% bar) would cut off recovery entirely at that fault level. Arizona has no such bar.

This distinction matters in real insurance negotiations. Adjusters in Maricopa County and Pima County routinely argue comparative fault to reduce payouts. Under Arizona's pure system, even a substantially negligent plaintiff retains bargaining leverage — the insurer cannot use a high fault percentage to eliminate recovery entirely, only to reduce it.

Joint and Several Liability in Arizona

Arizona largely abolished joint and several liability under A.R.S. §12-2506. When multiple defendants contributed to an injury — a distracted driver and a negligent property owner, for example — each defendant is responsible only for their proportionate share of fault. A defendant found 20% at fault pays 20% of the damages, not 100%.

Fault can also be allocated to non-parties, including settling defendants or third parties never named in the lawsuit. This makes the jury's fault allocation central to the final damages number, and it is why documenting each party's conduct from the outset is critical in multi-defendant cases.

Damage Caps in Arizona: A Constitutional Prohibition

Arizona is one of five states whose constitution explicitly forbids the legislature from capping personal injury damages. Article 18, Section 31 of the Arizona Constitution states: "No law shall be enacted in this state limiting the amount of damages to be recovered for causing the death or injury of any person" — with one narrow exception for felony offenders harmed during the commission of a crime.

The practical effect is significant. States like California and Texas have statutory caps on non-economic damages (pain and suffering, emotional distress, loss of consortium). Arizona's legislature simply cannot pass that law. Juries in Maricopa County and Pima County Superior Court set damages based on the evidence, not a statutory ceiling.

This applies to both economic and non-economic compensatory damages. A plaintiff with $2 million in future medical costs faces no cap. A plaintiff awarded $5 million in pain and suffering by an Arizona jury faces no statutory reduction. The full verdict stands subject only to appellate review on due process grounds.

Punitive Damages and Government Defendants

Punitive damages are available in Arizona PI cases where the defendant's conduct was outrageous or showed conscious disregard for the plaintiff's rights. The constitutional anti-cap provision protects compensatory damages; punitive awards remain subject to federal constitutional limits on disproportionate awards under the U.S. Supreme Court's due process jurisprudence.

Claims against public entities are a distinct category. A.R.S. §12-820.04 prohibits punitive damages against public entities and public employees acting within the scope of employment. That carve-out does not touch compensatory awards — injured plaintiffs can still recover full compensatory damages from government defendants.

Medical malpractice cases in Arizona carry the same constitutional protection. Unlike many states that impose hard caps on med-mal non-economic damages, Arizona's legislature has been blocked by Art. 18 §31 from doing the same. The status of any pending legislative effort on this topic should be confirmed with a licensed Arizona attorney, as challenges to the anti-cap provision arise periodically.

Auto Insurance and Personal Injury Claims in Arizona

Arizona is an at-fault (tort) state. When a crash happens on the I-10 through Phoenix or the US-60 in the East Valley, the driver who caused it — and their insurer — bears financial responsibility for resulting injuries and property damage. There is no personal injury protection (PIP) system that pays the injured party's bills regardless of fault.

Arizona law requires all drivers to carry minimum liability coverage:

Coverage TypeMinimum Required
Bodily injury — per person$25,000
Bodily injury — per accident$50,000
Property damage — per accident$15,000

These minimums are low relative to the cost of serious injuries. A single emergency room visit and overnight hospitalization in the Phoenix metro routinely exceeds $25,000. When the at-fault driver carries only minimum limits, victims face a coverage gap — which is why uninsured/underinsured motorist (UM/UIM) coverage is a practical necessity for Arizona drivers, even though the state does not mandate it.

Because Arizona is an at-fault state, injured victims claim directly against the at-fault driver's liability insurer. That claim proceeds under the same pure comparative fault rules described above — the insurer will investigate whether the injured party contributed to the crash and reduce any offer accordingly. Contemporaneous documentation of the scene, medical records from day one, and prompt legal counsel all affect how that negotiation unfolds.

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Frequently Asked Questions

What is the statute of limitations for personal injury in Arizona?
Arizona gives injury victims two years to file a personal injury lawsuit under A.R.S. §12-542. The clock generally starts on the date of injury. Plaintiffs with claims against a government entity face an additional requirement: a notice of claim must be filed within 180 days under A.R.S. §12-821.01 before any lawsuit can proceed. Missing either deadline typically bars the claim permanently. Confirm your specific deadline with a licensed Arizona attorney.
How does pure comparative negligence work in Arizona?
Under A.R.S. §12-2505, a plaintiff's damages are reduced by their percentage of fault — but recovery is not barred at any fault level. A plaintiff found 80% at fault still collects 20% of the jury's award. Arizona does not use the modified comparative fault bar (50% or 51%) common in other states. Joint and several liability among defendants has been largely abolished under A.R.S. §12-2506; each defendant pays only their proportionate share.
Does Arizona cap non-economic damages in personal injury cases?
No. Article 18, Section 31 of the Arizona Constitution expressly prohibits the legislature from enacting any law limiting damages recoverable for personal injury or wrongful death. Arizona has no cap on economic or non-economic compensatory damages, including in medical malpractice cases. Punitive damages against public entities are barred by A.R.S. §12-820.04, but that does not affect compensatory awards.
Is Arizona a no-fault or at-fault state for car insurance?
Arizona is an at-fault (tort) state. The driver responsible for the crash bears financial liability for injuries and property damage. Minimum required coverage is $25,000 per person / $50,000 per accident for bodily injury, plus $15,000 for property damage. Arizona does not require PIP coverage. Injured victims pursue claims directly against the at-fault driver's liability insurer under Arizona's pure comparative fault rules.