Man holding paper that says Are You Covered representing insurance policy limits after a car accident in Arizona

What Happens When Your Medical Bills Exceed the At Fault Driver’s Policy Limits?

Published On: March 9th, 2026

After a serious car accident, most people assume the at fault driver’s insurance will cover their medical bills. Unfortunately, that is not always the case. In Arizona, many drivers carry only the minimum required insurance or no insurance. When injuries are severe, hospital stays are long, or surgery is required, medical expenses can quickly exceed the at fault driver’s policy limits.

If this happens, you still have options. Understanding how insurance coverage works and what steps to take next can make a major difference in your financial recovery.

If you were injured in a crash, learn more about your rights by visiting our Personal Injury page.

Arizona Minimum Insurance Limits

Under Arizona law, drivers are required to carry minimum liability coverage. As of recent updates, the minimum limits are:

$25,000 for bodily injury per person
$50,000 for bodily injury per accident
$15,000 for property damage

You can review Arizona’s insurance requirements through the Arizona Department of Transportation.

While these minimums may sound like a lot, they are often not enough in serious injury cases. A single emergency room visit, ambulance ride, diagnostic imaging, and follow up care can quickly exceed $25,000. If surgery, hospitalization, or long-term treatment is involved, bills can reach six figures.

What It Means When Policy Limits Are Not Enough

When the at fault driver’s insurance policy is exhausted, the insurance company is only obligated to pay up to the policy limit. They do not have to pay beyond that amount, even if your medical bills are significantly higher.

This situation is commonly referred to as a “policy limits” case. The insurance company may offer the full policy limit to resolve the claim, but that payment may still leave you with unpaid medical expenses, lost wages, and ongoing treatment needs.

At this point, your case becomes more complex. An experienced Arizona car accident attorney can evaluate other sources of compensation.

You can also review general insurance guidance from the Insurance Information Institute to better understand how liability coverage works.

Potential Additional Sources of Compensation

Uninsured or Underinsured Motorist Coverage

If you carry uninsured or underinsured motorist coverage on your own auto policy, often referred to as UM or UIM coverage, this may step in when the at fault driver does not have enough insurance.

Underinsured motorist coverage is specifically designed for situations where the other driver’s policy limits are too low to cover your damages. You would file a claim with your own insurance company for the difference, up to your policy limits.

Personal Assets of the At Fault Driver

In some cases, it may be possible to pursue the at fault driver personally for damages beyond their insurance coverage. However, many drivers who carry minimum coverage do not have significant personal assets. A lawyer can investigate whether pursuing a personal judgment makes financial sense.

Other Liable Parties

Sometimes, more than one party is responsible for an accident. For example, if the crash involved a commercial vehicle, defective auto parts, a negligent employer, or unsafe road conditions, there may be additional defendants with larger insurance policies.

Identifying all potentially liable parties is critical in catastrophic injury cases.

Medical Payments Coverage

Medical payments coverage, often called MedPay, may help pay immediate medical bills regardless of fault. While MedPay limits are usually lower, it can provide short term relief while a larger claim is pending.

Why Serious Injury Cases Require Careful Strategy

When injuries are severe, such as traumatic brain injuries, spinal injuries, or multiple fractures, the long-term cost of care must be considered. It is not just about current medical bills. Future surgeries, rehabilitation, lost earning capacity, and ongoing pain management may significantly increase the true value of a claim.

Insurance companies know this. They often move quickly to offer policy limits in an effort to close the case before the full extent of injuries is known. Accepting a settlement too early can prevent you from seeking additional compensation later.

For more information about how catastrophic injuries are evaluated, visit our Car Accident Lawyer in Phoenix page.

The Importance of Legal Representation

When medical bills exceed the at fault driver’s policy limits, the case moves beyond a simple insurance claim. It becomes a strategic legal matter that requires investigation, negotiation, and sometimes litigation.

At Perez Law Group, PLLC, we analyze all available insurance policies, identify additional liable parties, work with medical providers to understand future treatment needs, and negotiate aggressively with insurance companies. Our goal is to pursue the maximum compensation available under the law.

If you are facing overwhelming medical bills after a crash, you do not have to navigate this alone.

Contact Perez Law Group, PLLC. at (602) 730-7100 to schedule a free consultation. Let us review your case and help you understand your options before making any decisions that could affect your financial future.

Related Articles