Nearly every personal injury claim in Arizona is a negligence claim. Not a claim that someone meant to hurt you, but a claim that someone was careless and that their carelessness cost you something real. The distinction matters, because negligence is a legal formula with specific parts, and a claim that cannot satisfy every part fails no matter how badly you were hurt.
The Four Elements of a Negligence Claim
Arizona courts require a plaintiff to prove four things.
- Duty. The defendant owed you an obligation to act with a certain level of care.
- Breach. They failed to meet that obligation.
- Causation. That failure is what caused your injury.
- Damages. You suffered actual harm as a result.
This framework comes from a line of Arizona Supreme Court decisions including Ontiveros v. Borak, Markowitz v. Arizona Parks Board, and Gipson v. Kasey. All four elements are required. Three out of four is a dismissed case.
Duty Is a Legal Question Decided Before the Facts
This is where Arizona differs from many states, and it is worth understanding.
In Gipson v. Kasey (2007), the Arizona Supreme Court held that whether a duty exists is a question of law the court settles before it ever considers the particular facts of the accident. The court also held that foreseeability is not part of the duty analysis at all. Foreseeability belongs to breach and causation, which are questions for a jury. The Supreme Court reaffirmed all of this in Quiroz v. ALCOA Inc. (2018), adding that duty is never presumed and that the plaintiff carries the burden of establishing it in every case.
Duties arise from two places, special relationships recognized at common law and public policy expressed in statutes. Every driver owes other road users a duty of reasonable care. Employers, commercial carriers, and product manufacturers each carry obligations defined by statute and case law. A property owner’s obligation to keep the premises reasonably safe for lawful visitors is what makes any premises liability claim possible in the first place.
Breach and the Reasonable Person Standard
Breach asks whether the defendant acted the way a reasonably careful person would have acted under the same circumstances. It is an objective test. A driver who genuinely did not see the motorcycle still breached the standard if a reasonably attentive driver would have.
Context shapes that standard. Sixty miles an hour is fine on Interstate 8 in clear conditions and unreasonable in a Yuma dust storm, because A.R.S. § 28-701 requires drivers to control their speed as necessary to avoid a collision under the conditions actually present, not merely to stay under the posted limit.
When a Statute Sets the Standard
Arizona recognizes negligence per se, which means a defendant who violates a safety statute designed to protect people like you from harm like yours has breached the standard of care as a matter of law. A citation for running a red light, following too closely, or failing to yield does substantial work in a claim. It does not end the case, because you still have to prove causation and damages, but it removes the argument over whether the conduct was unreasonable in the first place.
Causation Asks Two Separate Questions
Arizona requires both cause in fact and proximate cause. Cause in fact asks whether the injury would have happened without the defendant’s conduct. Proximate cause asks whether the connection is close enough that the law should impose responsibility, rather than the harm being the result of something unforeseeable that intervened.
This is where most disputed claims are actually fought, especially when an injured person had a prior medical condition. The rule in Arizona is that a defendant takes the injured person as they find them, so worsening a back problem someone already lived with is still causing harm. Proving that turns on gathering evidence quickly and on identifying everyone who shares responsibility, since the driver who hit you is often not the only party who owes you something.
Damages Have to Be Real
Careless conduct that injures no one creates no claim. You have to show actual loss, and Arizona sorts that loss into two categories of damages, with medical expenses and lost wages on one side and pain, limitation, and diminished quality of life on the other.
What If You Were Partly Negligent
Arizona is a pure comparative negligence state. Under A.R.S. § 12-2505, a claimant’s own fault does not bar recovery. It reduces the award in proportion to that fault. Found 30 percent responsible, you recover 70 percent. Found 75 percent responsible, you still recover 25 percent. That is a meaningfully better rule than the one most states apply, and partial blame never automatically ends a claim. Insurers know it, which is why they work to drive your fault percentage upward. Every point they assign you comes straight off the settlement.
The Deadline That Ends a Claim
Under A.R.S. § 12-542, most Arizona negligence actions must be filed within two years of the date the claim accrues. When a city, county, or state agency is involved, you are working against much shorter filing deadlines that begin running within six months of the injury and bar the claim entirely if you miss them.
Talk to an Arizona Negligence Attorney
Negligence sounds simple until an insurance company starts contesting one element at a time. Citrine Law represents injured people across Yuma County and southwestern Arizona and never insurance companies. We handle collisions, falls, and wrongful death claims as a Yuma personal injury lawyer and take cases involving car accidents throughout the county. The consultation is free and we are paid only if we recover for you, so tell us what happened and we will tell you where you stand.