What Arizona requires
Arizona requires liability coverage of 25/50/15 on every registered vehicle - $25,000 per injured person, $50,000 per accident, $15,000 of property damage - and ties registration to proof of that coverage. There is no PIP mandate and no uninsured motorist requirement; first-party medical and UM protection are choices made at the quote stage.
| Coverage | Arizona minimum | Required? |
|---|---|---|
| Bodily injury liability | $25,000 / $50,000 | Yes |
| Property damage liability | $15,000 | Yes |
| Uninsured motorist | None | No - not required |
| Personal injury protection | None | No |
| Medical payments | None | No - optional add-on |
The MVD requires liability insurance when you register or transfer a vehicle, so coverage starts at the registration transaction rather than at the first traffic stop. Because UM is optional, the decision whether an uninsured-driver crash pays anything rests entirely on what you bought - in a state where the uninsured share is real and rising costs make the cheap rejection tempting.
Pure comparative negligence: fault with no cliff
Arizona is a pure comparative negligence state - the most permissive fault model in the United States. Whatever share of a crash a court assigns you, you can still recover from the other parties reduced by that share. A driver found 90 percent at fault can still collect 10 percent of their damages; a driver found 99 percent at fault can collect 1 percent. There is no threshold where recovery disappears entirely.
The rule cuts both ways with the same generosity: the other driver can recover from you down to your last percent of fault, which is why liability limits above the Arizona floor matter more here than in bar states. Since a small recovery still requires someone solvent to pay it, uninsured motorist coverage remains the backstop for the cases where fault percentages are calculated against a defendant with no money.
Desert risks: what actually claims in Arizona
- Comprehensive pressure: Phoenix ranks among the highest metro areas for vehicle theft nationwide, pushing comp premiums up.
- Monsoon season hail and blowing dust drive comprehensive claims in July through September.
- Extreme heat stresses batteries, tires and plastic components - a common source of non-collision claims.
- Flash flooding in washes and underpasses produces total losses with startling regularity.
- Arizona drivers with financed vehicles need collision and comprehensive regardless of what the state requires.
The state-mandated defensive driving course pulls double duty in Arizona: it dismisses points on a ticket and carries an insurance premium discount when completed through an approved provider - one of the few states where the course itself is a recognized rating credit.
What Arizona drivers pay
Arizona sits near the national midpoint. Quote.com's September 2025 state table put minimum coverage around $59 a month - above Ohio and Washington, below Georgia and the coastal expensive states. Inside Arizona, the Phoenix metro prices highest (traffic density, theft, medical costs), Tucson follows, and rural counties with light traffic price noticeably below both.
Theft-driven comprehensive pricing means Arizona drivers should re-evaluate their vehicle choice's insurance cost before purchase: two similarly priced cars can carry very different comp premiums based on theft rankings alone. Getting that number before buying the car is cheaper than discovering it at the first renewal.
How to save in Arizona
- Complete the Arizona defensive driving course for both point dismissal and the premium discount.
- Report accurate mileage and garaging - Phoenix versus Prescott pricing differs materially.
- Bundle with home or renters; multi-policy discounts are standard across Arizona carriers.
- Price higher comp deductibles on low-theft-value vehicles, keep liability at 100/300/100.
- Compare three to five carriers - Arizona's competitive market produces real spreads for identical drivers.
The Arizona Department of Insurance and Financial Institutions takes consumer complaints - useful when a claim estimate, non-renewal, or verification mismatch needs state attention.
Pure comparative negligence, worked through numbers
Take a crash with $100,000 in damages and a fault split of 60 percent the other driver, 40 percent you. Pure comparative negligence lets you recover $60,000 from that driver - reduced by your share but never barred. Flip it: even at 90 percent your fault you may still pursue $10,000 from the other side. The math only pays when the other side can fund it, which is where Arizona's optional UM coverage decides outcomes - an uninsured defendant turns a correct fault calculation into a claim against your own policy, or against nobody at all.
Related pages
- How car insurance works
- Liability limits: how much you need
- How to get the cheapest car insurance rates
- Auto insurance in California
- Auto insurance hub
Frequently Asked Questions
What are Arizona's car insurance minimums?
25/50/15: $25,000 bodily injury per person, $50,000 per accident, and $15,000 property damage. Arizona requires liability coverage to register a vehicle; PIP and UM are not mandated.
Is Arizona a no-fault state?
No. Arizona is an at-fault state with pure comparative negligence - you can recover from the other driver no matter how large your share of fault is, reduced by that share. There is no percentage at which recovery is barred entirely.
Is uninsured motorist coverage required in Arizona?
No. UM coverage is not required, though carriers offer it. In a state with a meaningful uninsured-driver population, buying UM decides whether an uninsured crash pays for your injuries at all.
What is the defensive driving discount in Arizona?
Completing an approved Arizona defensive driving course both dismisses points from a ticket and qualifies you for an insurance premium discount - a recognized rating credit in the state.
Does Phoenix have higher car insurance than the rest of Arizona?
Yes. Phoenix garaging prices highest in the state due to traffic density, theft rates and medical costs; Tucson follows, and rural counties price well below both for identical drivers and records.
Last updated: 2026-10-01