Car Accident Laws in Washington: Fault, Insurance & Deadlines

Washington is an at-fault (tort) state, not a no-fault state. The driver who caused the crash — or their insurer — is financially responsible for the resulting injuries and property damage. If you're hurt in a Washington crash, you generally have three years from the date of the collision to file a personal-injury or property-damage lawsuit, under RCW 4.16.080. Confirm any date-sensitive detail here against the current statute or Washington's Office of the Insurance Commissioner before you rely on it — insurance rules and deadlines can change, and exceptions (below) can shorten your practical window even when the legal clock is still running.

1. Is Washington a no-fault or at-fault state?

Washington is an at-fault (tort liability) state. There is no mandatory no-fault personal injury protection (PIP) system here. After a crash, an injured person can pursue compensation in one of three ways: file a claim with their own insurer, file a third-party claim against the at-fault driver's liability insurance, or file a lawsuit against the at-fault driver. Fault is determined by evidence — police reports, witness statements, photos, and sometimes expert reconstruction — and the at-fault party's liability coverage is the primary source of payment for the other driver's injuries and vehicle damage.

Because Washington doesn't require no-fault PIP, medical bills after a crash are often paid first through health insurance, MedPay, or optional PIP (see below), with reimbursement later from the at-fault driver's liability carrier once fault and damages are established.

2. Minimum auto insurance required in Washington

Under RCW 46.29.090, Washington drivers must carry liability insurance (or another approved form of financial responsibility) with at least these limits — commonly written as 25/50/10:

• $25,000 bodily injury liability per person
• $50,000 bodily injury liability per accident
• $10,000 property damage liability per accident

PIP and med-pay: Personal injury protection is not mandatory in Washington, but insurers are required to offer it — with at least $10,000 in medical benefits — under RCW 48.22.085 (with coverage terms defined in RCW 48.22.095). You must reject PIP in writing if you don't want it; otherwise many policies include it by default.

Uninsured/underinsured motorist (UM/UIM): Also not automatically mandatory to purchase, but insurers must offer it under RCW 48.22.030, and a named insured must reject it in writing to decline it. Given how many drivers carry only the state minimums (or no insurance at all), UM/UIM coverage is worth keeping — verify your own declarations page and confirm current requirements with the Washington Office of the Insurance Commissioner.

3. Statute of limitations after a Washington crash

Washington uses a single three-year period, under RCW 4.16.080, for both:

• Personal injury claims: 3 years from the date of the crash
• Property damage claims (vehicle, personal belongings): 3 years from the date of the crash

Important exceptions can change this: if the injured person was a minor at the time of the crash, the clock generally doesn't start until their 18th birthday (RCW 4.16.190). If a government-owned vehicle or government entity is involved, additional notice steps apply well before the three-year mark (see Section 6). Because settlement negotiations with an insurance adjuster do not pause this deadline, don't assume an ongoing claim protects your right to sue — confirm your specific deadline with a Washington attorney or the courts if you're near the three-year mark.

4. Washington's shared-fault rule: pure comparative negligence

Washington follows pure comparative negligence under RCW 4.22.005. That means:

• Being partly at fault does not bar you from recovering damages.
• Your compensation is reduced by your own percentage of fault — if you're found 30% at fault, your recovery is reduced by 30%.
• Unlike many states, Washington has no cutoff percentage. Even someone found 80% or 90% at fault can still recover the remaining percentage from another at-fault party.

This is more favorable to injured drivers than the "modified comparative negligence" rules (with a 50% or 51% bar) used in many other states.

5. When you must report a crash in Washington

Under RCW 46.52.030 and WAC 446-85-010, a driver must submit a written report within 4 days of a crash that causes:

• Injury to or death of any person, or
• Property damage to any one person's property of $1,000 or more

You generally don't need to file your own written report if a law enforcement officer already completed one at the scene. If police weren't called and the damage or injury meets the threshold, you're responsible for submitting the report yourself — the Washington State Patrol and Department of Licensing both provide guidance and the required forms. When in doubt, call police to the scene and request a report; it becomes the backbone of any later insurance claim.

6. Damage caps and claims involving a government vehicle

Washington's courts have struck down statutory caps on noneconomic (pain-and-suffering) damages in personal injury cases, so ordinary at-fault crash claims between private drivers are not subject to a dollar cap on those damages. Always confirm current law, since damage-cap litigation and legislation can shift.

Claims are different if a government-owned vehicle (city, county, state, transit agency, school district) is involved. Before suing a local government entity, you must first present a formal claim on the state's standard tort claim form and then wait 60 calendar days, under RCW 4.96.020; a similar presentment requirement applies to claims against Washington State itself under RCW 4.92.090–4.92.110. The 60-day wait pauses (tolls) the three-year statute of limitations, but you cannot simply wait until year three to start — the claim must be presented first, and government entities can have specific, shorter internal notice expectations. If a government vehicle or government employee was involved in your crash, treat your effective deadline as much sooner than three years and get your claim filed promptly; confirm the exact process and any applicable damage caps with the relevant agency's risk management office or Washington courts.

What to do after a crash in Washington

1. Stop and check for injuries. Washington law requires drivers involved in a crash to stop at or near the scene.
2. Call 911 if anyone is injured, if there's significant property damage, or if you're unsure whether the damage meets the $1,000 reporting threshold — let police make that call and generate the official report.
3. Exchange information with the other driver(s): name, address, phone, driver's license number, license plate, and insurance company and policy number.
4. Document the scene — photos of all vehicles, license plates, road conditions, skid marks, traffic signals, and visible injuries; get names and contact information for witnesses.
5. Get medical attention even if you feel fine; some injuries (concussions, soft-tissue injuries) don't show symptoms immediately, and prompt medical records matter for both your health and any later claim.
6. Report to your own insurer promptly and ask specifically about PIP, med-pay, and UM/UIM coverage on your policy.
7. File the driver's written accident report yourself within 4 days if no officer responded and the injury/death or $1,000 property-damage threshold is met.
8. Keep records of medical bills, lost wages, repair estimates, and correspondence with insurers.
9. Note the deadline. Mark the 3-year statute of limitations on your calendar — sooner if a government vehicle was involved — and don't rely on an insurer's ongoing "negotiation" to protect that date.

This article is for general information only and is not legal advice; confirm current Washington law and deadlines with the Washington Office of the Insurance Commissioner, the Washington State Legislature's published RCWs, or a licensed Washington attorney before acting.