March 1, 2026
Arizona Minimum Car Insurance Requirements: Is 25/50/15 Enough?
Arizona requires 25/50/15 liability coverage, but is minimum coverage enough to protect you? Here is what the limits mean and when you should consider more.
If you have shopped for car insurance in Arizona, you have seen the numbers 25/50/15 come up repeatedly. These are the Arizona minimum car insurance requirements, and every registered driver is legally required to carry at least this much liability coverage. But legal minimum and financially adequate are two different things. Here is what those numbers actually mean, what happens when they run out, and how much it costs to do better.
What Does 25/50/15 Actually Mean?
The three numbers in 25/50/15 coverage in Arizona each represent a dollar limit, expressed in thousands, for different parts of a liability claim:
$25,000 per person for bodily injury. If you cause an accident that injures someone, your insurer will pay up to $25,000 toward that person's medical bills, lost wages, and related costs. Once that limit is reached, anything above it becomes your responsibility.
$50,000 per accident for bodily injury. This is the total your insurer will pay across all injured parties in a single accident. If three people are injured, the $50,000 has to cover all three, subject to the $25,000 per-person cap on each.
$15,000 per accident for property damage. This covers the cost of repairing or replacing the other driver's vehicle, or any other property you damage, such as a fence, wall, or another vehicle in a multi-car collision.
What these limits do not cover is equally important. They pay for damage and injuries you cause to others. They do not pay for your own vehicle, your own medical bills, or anything caused by an uninsured driver who hits you. For that, you need collision, comprehensive, and uninsured motorist coverage, all of which are optional under Arizona law.
A Real-World Phoenix Accident That Exceeds These Limits
To understand why the question "is minimum coverage enough in AZ" has a complicated answer, consider a straightforward two-car accident scenario on a busy Phoenix surface road during rush hour.
You run a red light and T-bone a sedan. The other car has a driver and one passenger. Both are taken by ambulance to a hospital.
The driver suffers a broken collarbone, lacerations, and a concussion. After emergency care, imaging, a short hospital stay, and follow-up visits, the bill reaches $38,000. Your per-person limit is $25,000. The remaining $13,000 comes from you.
The passenger has a fractured wrist, soft tissue injuries, and requires physical therapy over several months. Total medical costs: $22,000. Your per-person limit of $25,000 covers this one, but your per-accident limit of $50,000 has now been nearly consumed between the two of them.
The other vehicle, a two-year-old crossover SUV, is totaled. Replacement value: $34,000. Your property damage limit is $15,000. You owe the remaining $19,000 out of pocket.
In this single, relatively ordinary accident, you could be personally responsible for more than $30,000 above your policy limits. If the injured parties choose to sue, they can pursue your savings, your home equity, and your wages to recover what your insurance did not cover. This is not a worst-case scenario. It is the kind of accident that happens in Phoenix every day.
Why Most Experts Recommend at Least 100/300/100
Arizona liability limits of 100/300/100 are widely recommended as the floor for drivers who have any meaningful assets to protect. Those numbers break down as:
- $100,000 per person for bodily injury
- $300,000 per accident for bodily injury
- $100,000 per accident for property damage
Running the same Phoenix scenario through these limits, both injured parties are covered without exhausting the per-accident cap, and the totaled SUV is fully covered within the property damage limit. You leave the accident with your insurer having handled the claim rather than a court judgment following you.
The 100/300/100 recommendation reflects two realities: medical costs are high and rising, and vehicles are more expensive than they were a decade ago. A $15,000 property damage limit was more reasonable when the average vehicle cost $15,000. Today it covers a fraction of what a newer car or truck is worth.
Beyond 100/300/100, some drivers with significant assets or a higher-value vehicle choose umbrella policies that add a layer of liability protection above their auto policy limits. But for most Arizona drivers, getting from minimum to 100/300/100 is the most impactful step.
What Higher Limits Actually Cost
This is where many drivers are surprised. The jump from Arizona minimum liability limits to 100/300/100 is often far less expensive than it sounds.
For a typical Arizona driver with a clean record, upgrading from 25/50/15 to 100/300/100 typically adds $20 to $40 per month to a liability-only premium. On an annual basis, that is $240 to $480 for coverage that is four times more protective on bodily injury per person and more than six times more protective on property damage.
The reason the cost difference is relatively small is that insurers price the first layer of coverage highest. The probability of a claim hitting $25,000 is much higher than the probability of it hitting $100,000, so the marginal cost of that extra protection is lower than most drivers expect.
A few factors affect exactly how much more you will pay:
- Your ZIP code and its local claims history
- Your driving record and years of experience
- Your vehicle type and model year
- Whether you are adding other coverage like collision, comprehensive, or uninsured motorist at the same time
In many cases, comparing quotes from multiple carriers for the same 100/300/100 limits surfaces a rate that is competitive with what another carrier charges for minimum coverage. Carrier pricing varies enough that a higher-limit policy from one insurer can cost less than a minimum-limit policy from another.
What About Uninsured Motorist Coverage?
One gap that minimum coverage does not address is what happens when someone hits you and they have no insurance or not enough insurance to cover your losses. Arizona has one of the higher rates of uninsured drivers in the country.
Uninsured and underinsured motorist coverage fills this gap. It is optional under Arizona law, but given local conditions, it is worth including when you are reviewing your limits. Carriers are required to offer it to you, and you must decline it in writing if you do not want it.
Adding 100/300 uninsured motorist protection alongside your liability upgrade generally adds a modest amount to the monthly premium but provides significant protection against a scenario that is genuinely common in Arizona.
See What Higher Limits Would Actually Cost You
Many drivers carry minimum coverage because they assume better protection is significantly more expensive. For most, the actual difference is less than a dinner out each month. The smarter move is to get a real quote with the coverage levels that actually protect your financial life and see the number for yourself.
See what higher limits would actually cost you and get a free quote in under 2 minutes.