Arizona uses pure comparative negligence: recovery is reduced by the plaintiff's percentage of fault. Authority: Ariz. Rev. Stat. § 12-2505.
The Arizona pattern jury instructions ask jurors to determine: (1) was the defendant negligent? (2) was the plaintiff negligent? (3) was each party\'s negligence a substantial factor in causing the injury? (4) what percentage of fault, totaling 100%, do you assign to each party?
The court applies the pure comparative negligence formula to those percentages after the verdict form is returned.
When a Arizona jury decides a personal-injury case, the first question is whether the defendant was negligent. The second , almost always more consequential to the dollar amount , is whether the plaintiff bears any responsibility. Arizona's comparative-negligence rule is what converts that second answer into money.
Arizona applies pure comparative negligence: even a plaintiff found 99% at fault can recover 1% of damages. The verdict is mechanically reduced by the plaintiff's percentage, and the doctrine has no threshold that bars recovery.
Pre-trial settlement valuation and trial strategy in Arizona both turn on these numbers. Below: five scenarios at common verdict sizes and fault percentages, with the recovery a Arizona plaintiff would actually receive under the state\'s pure comparative negligence rule.
| Verdict | Plaintiff fault | Net recovery | Reduction |
|---|---|---|---|
| $100,000 | 10% | $90,000 | $10,000 |
| $250,000 | 25% | $187,500 | $62,500 |
| $500,000 | 49% | $255,000 | $245,000 |
| $500,000 | 50% | $250,000 | $250,000 |
| $1,000,000 | 60% | $400,000 | $600,000 |
Worked example: a Arizona jury awards a plaintiff $500,000 in damages and finds the plaintiff 10% at fault. Under the state's pure comparative negligence rule, the plaintiff actually recovers $90,000.
Practical illustration: an injured driver wins a $200,000 verdict in Arizona and the jury assigns 25% fault to them. Applying Arizona's pure comparative negligence rule yields a net recovery of $187,500.
Practical illustration: an injured driver wins a $200,000 verdict in Arizona and the jury assigns 49% fault to them. Applying Arizona's pure comparative negligence rule yields a net recovery of $255,000.
Worked example: a Arizona jury awards a plaintiff $500,000 in damages and finds the plaintiff 50% at fault. Under the state's pure comparative negligence rule, the plaintiff actually recovers $250,000.
Practical illustration: an injured driver wins a $200,000 verdict in Arizona and the jury assigns 60% fault to them. Applying Arizona's pure comparative negligence rule yields a net recovery of $400,000.
Arizona's rule changes how cases settle. In a state with a hard 50% bar, defense lawyers ramp up fault-allocation evidence , police reports, expert reconstruction, dashcam footage , because pushing the plaintiff over the threshold is worth the entire case. In pure-comparative states, both sides negotiate from a smoother slope.
Arizona jurors are typically instructed on the comparative-fault rule but, in some states, are not told the legal consequences of their percentage findings. This "blindfold" approach is meant to keep jurors focused on facts, not strategy , though defense lawyers argue it lets plaintiffs benefit from jurors who do not realize a 51% allocation eliminates recovery.
Arizona comparative-negligence rules only matter if you file on time. The state\'s personal-injury statute of limitations is 2 years from the date of injury (Ariz. Rev. Stat. § 12-542). Even an airtight liability case is dismissed with prejudice if the complaint is filed late.
Arizona applies pure comparative negligence. Arizona uses pure comparative negligence: recovery is reduced by the plaintiff's percentage of fault.
Arizona has no bar threshold. A plaintiff can recover even when 99% at fault, with damages reduced proportionally.
Arizona jurors are presented with a special verdict form asking them to assign fault percentages totaling 100% to each party (and any non-party at fault under joint-tortfeasor rules). The trial court then applies the comparative-fault formula to compute the final recovery.
Yes. Arizona juries can apportion fault among multiple defendants (and sometimes non-party tortfeasors). The treatment of joint and several liability , whether each defendant is liable only for their share or for the entire judgment if others are insolvent , varies by state statute.
Arizona courts vary on the "seat-belt defense." Some states allow evidence of non-use as a fault factor; others (by statute or judicial rule) exclude it. Plaintiffs\' counsel should consult current Arizona appellate decisions before deciding how to handle the issue at trial.
Generally yes , Arizona\'s comparative-fault rule applies across negligence claims, including medical malpractice. Some states adjust the framework for medmal cases (e.g., reducing the plaintiff-fault relevance because patients rarely contribute to their own injuries in the traditional sense), but the basic rule applies unless the statute carves out an exception.
In pure-comparative Arizona, settlements correlate smoothly with projected fault , the absence of a bar threshold makes negotiation more predictable and reduces "all or nothing" trial risk.
Last verified against primary sources on 2026-05-16.