Washington State car accident laws

Last checked 1 July 2026

Washington’s rules are relatively generous by national standards: a three-year filing window, and a fault rule with no cutoff at all.

Even a driver found mostly at fault for their own crash keeps some right to recover in Washington — the fault percentage scales the amount, but never zeroes it out.

Washington State car accident laws at a glance

Washington State car accident rules, what applies and the statute

Rule	What applies in Washington State	Statute	Detail
Deadline to file an injury lawsuit	3 years	RCW §4.16.080	Read more
Fault rule	Pure comparative negligence — no bar	RCW §4.22.005	Read more
Insurance system and minimums	At-fault system, 25/50/10 minimum	RCW §46.29.090	Read more
Wrongful death deadline	Three years from the date of death	See the section	Read more

Last checked 1 July 2026. Each row links to the section that explains it, with the statute.

How long do I have to file a car accident lawsuit in Washington State?

Under RCW §4.16.080, you generally have three years from the date of the accident to file a personal injury or property damage lawsuit. The same three-year period applies to wrongful death claims, running from the date of death.

What if I was partly at fault in Washington State?

Under RCW §4.22.005, Washington uses pure comparative negligence: your damages are reduced by your percentage of fault, but there is no cutoff. Even if you’re found 80% at fault, you can still recover the remaining 20% — though you’d also be on the hook for 80% of the other driver’s damages.

What car insurance does Washington State require?

Washington is an at-fault state, not a no-fault state. Minimum liability limits are 25/50/10: $25,000 per person and $50,000 per accident for bodily injury, plus $10,000 for property damage. Uninsured/underinsured motorist coverage is not mandatory but is widely recommended given the relatively low property-damage minimum.

RelatedCar accident with no insuranceHow UM/UIM coverage works when the other driver can’t pay.

How this plays out in a real claim

Take a rear-end collision where the trailing driver was following too closely, but the lead driver’s brake lights weren’t working. An insurer might assign 70% fault to the trailing driver and 30% to the lead driver. Because Washington State follows pure comparative negligence, the lead driver’s compensation is reduced by their 30% share — not eliminated by it, and not eliminated even if their share were 90%. This is also why insurers in Washington State tend to focus heavily on negotiating your fault percentage upward, rather than trying to push you past a bar that doesn’t exist here.

What mistake should I avoid after a crash in Washington State?

Because Washington State’s rule has no bar at all, some people assume a high fault percentage means there’s no point pursuing a claim. That’s rarely true here — even a driver found 80% or 90% at fault can still recover their remaining share, so it’s worth having the claim properly valued rather than assuming a disputed-fault situation isn’t worth pursuing.

What if a government vehicle or agency was involved?

Washington is comparatively less strict than many states here: there’s no separate short-notice deadline for filing a claim against the state (Wash. Rev. Code Ch. 4.92) or a local government (RCW §4.96.020) — you file a notice of claim, then must wait at least 60 days before suing. The underlying statute of limitations is paused during that waiting period, so it doesn’t eat into your normal filing window the way a strict short-notice deadline would elsewhere.

What is the deadline if the crash caused a death?

Washington gives three years from the date of death for a wrongful death claim (RCW 4.16.080(2)), filed only by the estate’s personal representative. Washington uses a two-tier beneficiary system: spouse, domestic partner, and children come first; parents and siblings can only recover if there’s no one in the first tier (a 2019 law change extended this to parents and siblings who weren’t financially dependent on the deceased). Unlike most states, Washington does not pause the three-year clock for minor beneficiaries.

How does uninsured motorist coverage work in Washington State?

Washington doesn’t require UM/UIM coverage, but insurers must offer it matching your liability limits, and only the named insured or their spouse can reject it, in writing (RCW §48.22.030). One detail worth knowing: if you’re hit by a hit-and-run or unidentified “phantom” vehicle, Washington law specifically requires the accident be reported to police within 72 hours to preserve a UIM claim, along with independent evidence beyond your own account of what happened.

Beyond the deadline and the fault rule

The statute of limitations and the fault rule above decide whether you have a claim and how much of it survives — they don’t decide what the claim is actually worth, or whether it’s worth handling yourself. For that, see our guides on what affects a settlement, who pays your medical bills while a claim is pending, and whether Washington State law makes a lawyer worth it for your specific situation.

When should I talk to a lawyer in Washington State?

With no fault cutoff, disputes in Washington tend to center on the exact fault percentage, since it directly scales what you recover. A conversation with a qualified lawyer can help if fault is contested.