Currently, approximately a dozen states plus Puerto Rico operate under a no-fault system. These states are:

• Florida
• Hawaii
• Kansas
• Kentucky
• Massachusetts
• Michigan
• Minnesota
• New Jersey
• New York
• North Dakota
• Pennsylvania
• Utah

Elements of No-Fault Coverage

The essential elements of a true no-fault system are:

1. Provision of first-party benefits regardless of fault.
2. Exemption from tort liability to some degree for those insured under the system.
3. A requirement to purchase the mandatory no-fault coverage.

No-fault coverage is typically added to a policy by adding a “Personal Injury Protection” (PIP) endorsement. While policy language is important, the governing state law ultimately defines the scope of the coverage. Courts have often voided policy provisions that are more restrictive than what the state's no-fault law requires.

Priorities for recovery are established when multiple policies could apply. Generally, an injured person first turns to their own auto policy. If they do not own a vehicle, they may be covered by the policy of a resident relative or the policy covering the vehicle they were occupying at the time of the accident.

No-Fault Benefits

Property Damage

Most no-fault systems focus exclusively on bodily injury, not property damage. Michigan is a notable exception, with a mandatory Property Protection Insurance (PPI) requirement that provides up to $1 million for damage your vehicle does to other people's property (like buildings and fences) and to properly parked vehicles [Source: Michigan Department of Insurance and Financial Services]. Because of this system, Michigan drivers must typically purchase collision coverage to cover damage to their own vehicle from an at-fault accident.

Bodily Injury Liability

No-fault insurance primarily covers economic losses from bodily injury. Benefits typically include:

• Medical and Rehabilitation Expenses: Covers costs for treatment and therapy. Some states, like Michigan, offer potentially unlimited lifetime medical benefits, though recent reforms have introduced cost controls.
• Loss of Earnings: Replaces a percentage of lost income up to a weekly or monthly limit.
• Replacement Services: Reimburses expenses for necessary services the injured person can no longer perform, such as housekeeping or yard work.
• Funeral Expense: Provides a set amount for funeral and burial costs.
• Survivors' Loss: Compensates surviving dependents for the loss of income or other economic contributions from the deceased.

Many states require insurers to offer optional increased benefit limits and allow consumers to select deductibles to lower their premiums.

Types of Laws

There are three main types of no-fault laws:

Modified No-Fault Plans

This is the most common system, described. Drivers receive compensation from their own insurer but can still sue the at-fault party for severe injuries and non-economic damages (like pain and suffering) if certain conditions are met. These conditions are known as a "threshold."

• Monetary Threshold: The right to sue is granted only if medical expenses exceed a specific dollar amount. States like Kansas, Kentucky, and Utah use a monetary threshold.
• Verbal Threshold: The right to sue is based on the severity of the injury, described in words (e.g., "significant disfigurement," "permanent limitation of a body part," or death). Florida, Michigan, New Jersey, New York, and Pennsylvania use a verbal threshold. However, note that Florida law is changin in 2027, discussed below.

Some states, known as "choice" no-fault states (Kentucky, New Jersey, and Pennsylvania), allow drivers to choose whether to be bound by the no-fault system's limitations on lawsuits or to retain their full rights to sue [Source: Nolo].

States with Modified No-Fault Plans:

• Florida
• Hawaii
• Kansas
• Massachusetts
• Michigan
• Minnesota
• New York
• North Dakota
• Utah

Choice No-Fault: A Variation on Modified Plans

A handful of states operate under a "choice no-fault" system. Here, consumers are given the option to select either a modified no-fault policy, which limits their right to sue in exchange for lower premiums, or a traditional tort policy, which preserves their full litigation rights but typically costs more.

States with Choice No-Fault Plans:

• Kentucky
• New Jersey
• Pennsylvania

Add-On No-Fault Plans

Unlike modified plans, add-on systems are used in states that are fundamentally based on the traditional at-fault (tort) liability model. In these states, PIP coverage is not mandatory but is offered as an optional "add-on" to a standard auto policy.

Drivers who purchase this coverage can receive benefits from their own insurer for medical expenses without having to prove fault. The key distinction of an add-on plan is that it places no restriction on the right to sue. An injured driver can collect from their own PIP policy and still pursue a lawsuit against the at-fault driver for all damages, including pain and suffering.

States with Add-On No-Fault Plans:

• Arkansas
• Delaware
• Maryland
• New Hampshire
• Oregon
• South Dakota
• Texas
• Virginia
• Washington
• Wisconsin
• District of Columbia (D.C.)

Pure No-Fault Plans

A pure no-fault system is a theoretical model that does not currently exist in the United States.

Under a pure no-fault plan, an accident victim’s right to sue an at-fault driver would be completely eliminated. In this system, individuals would rely exclusively on their own insurance policies to cover all losses, from medical bills and lost wages to pain and suffering. By completely removing the right to litigation, proponents argue this would dramatically lower costs and premiums.

However, due to significant legal and constitutional challenges related to eliminating the right to sue, no state has enacted a pure no-fault law.

Summary of Key Differences

Coordination With Other Benefits

State laws specify how no-fault benefits coordinate with other insurance. Workers' compensation is almost always primary over no-fault benefits for a work-related auto accident. Federal law makes auto insurance primary over Medicare benefits.

For health insurance, some states make no-fault primary. In others, like Michigan, drivers can designate their health insurance as primary for auto accident injuries, which can significantly reduce their auto insurance premium.

Illustration of Benefits (North Dakota)

North Dakota's no-fault system illustrates how benefits work. The state mandates an overall maximum limit of $30,000 per person for basic Personal Injury Protection (PIP) benefits. According to the North Dakota Century Code § 26.1-41, this includes:

• Reasonable and necessary medical expenses.
• Work loss, limited to 85% of actual income, up to $150 per week.
• Replacement services, limited to $15 per day.
• Funeral expenses, up to $3,500.

For example, a North Dakota insured who incurs $20,000 in medical expenses has $10,000 remaining under their basic PIP coverage. If they are disabled from work and also require replacement services, their insurer would pay up to $255 per week ($150 for work loss + $105 for services) until the remaining $10,000 is exhausted.

Tort Liability Exemption

The cornerstone of a no-fault system is the exemption from tort liability. By purchasing no-fault coverage, a driver gains immunity from lawsuits for the economic losses covered by PIP. A person can only sue for economic losses that exceed their no-fault benefit limits.

For non-economic losses (pain and suffering), the right to sue is restricted by the monetary or verbal thresholds discussed earlier. The shift towards higher monetary thresholds or purely verbal thresholds was intended to reduce litigation for minor injuries.

Recovery by Insurer

While no-fault settles claims between the insured and their own insurer, it does not always eliminate the concept of fault between insurance companies. Most no-fault states allow an insurer that has paid PIP benefits to recover those payments from the insurer of the at-fault party through subrogation. This is especially common in accidents involving commercial vehicles, recognizing the greater potential for damage and injury they pose. These inter-company disputes are typically resolved through binding arbitration rather than litigation.

Payment

State no-fault laws mandate prompt payment of benefits as losses accrue (e.g., as medical bills arrive). Insurers who fail to pay valid claims within the specified time frame (typically 30 days) may be required to pay interest on the overdue benefits and, in some cases, punitive damages for unreasonable delays.

Constitutionality

The constitutionality of no-fault laws has been challenged in many states but has been consistently upheld. Courts in Kansas, Kentucky, Michigan, and New York have affirmed that these systems are a valid exercise of the state's police power to regulate public highways and ensure prompt compensation for accident victims. While specific provisions have sometimes been struck down, the core concept of a modified no-fault system remains a fixture of the legal landscape in the states that continue to use it, despite ongoing legislative debates about its effectiveness and cost.