Auto insurance in Washington: what’s required, and what isn’t
Washington requires 25/50/10 liability coverage — and that final number, $10,000 of property damage, is the lowest floor of any state covered here. The state also allows a handful of genuine alternatives to buying a policy at all, though almost nobody uses them. Washington is additionally one of the few states where the use of credit in rating has been litigated recently, and the outcome is worth understanding before you shop.
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What Washington requires you to carry
| Bodily injury, per person | $25,000 |
|---|---|
| Bodily injury, per accident | $50,000 |
| Property damage, per accident | $10,000 |
These are floors, not recommendations. Washington sets the minimum a driver may legally carry. It does not assess whether that amount would cover a claim you caused. Anything above your limits is your personal exposure.
How Washington enforces it
Washington requires proof of coverage at traffic stops, and driving without it is a ticketable offence. The state accepts three alternatives to a policy: a certificate of deposit filed with the Department of Licensing, a liability bond of at least $60,000 from an authorised surety, or self-insurance, which is available only to owners of 26 or more vehicles.
How rates are set in Washington
Washington is an at-fault state. The driver responsible for a crash is responsible for the resulting injury and property damage, and their liability limits cap what the insurer pays on their behalf.
The Office of the Insurance Commissioner reviews carrier filings and runs a consumer complaint process. Under state law, insurers may consider age, driving record, location, credit history and other factors when deciding whether to offer coverage and at what price. The 2021 attempt to remove credit from that list was struck down in court, so it remains in use.
Neither personal injury protection nor uninsured motorist coverage is compulsory in Washington, though carriers must offer both. That makes Washington quotes look cheaper than Oregon quotes at similar liability limits — the difference is frequently that the Washington quote has less in it.
Credit-based insurance scores in Washington
Washington permits credit-based insurance scores, and the fact that it does is the result of a fight worth knowing about. In 2021 the Insurance Commissioner issued an emergency rule banning the use of credit history in personal lines rating. A Thurston County Superior Court judge invalidated that rule in October 2021, holding the Commissioner lacked good cause for an emergency rule and could not use the general "excessive, inadequate, or unfairly discriminatory" rating standard to override the more specific statutes authorising credit use. Credit-based insurance scores remain permitted in Washington today.
What actually moves your premium here
The $10,000 property damage minimum is the lowest in the launch set
Washington requires only $10,000 of property damage liability — the thinnest floor of any state on this site. Against current vehicle values, a single at-fault collision with a late-model vehicle can exhaust it outright, and the remainder is your personal exposure. If there is one number to raise on a Washington policy, this is it, and it is usually inexpensive to do.
Puget Sound congestion drives frequency
The Seattle–Tacoma–Everett corridor produces high collision frequency at low speeds. That pattern favours carriers with strong repair networks and shows up in collision pricing rather than in liability, and it varies sharply by garaging ZIP across the metro.
Vehicle theft is a live comprehensive factor
Washington has run persistently high vehicle theft rates relative to the national picture, concentrated in the Puget Sound metros. Theft is a comprehensive claim, so a liability-only policy leaves it entirely uncovered.
No state income tax does not mean cheap insurance
Washington premiums sit close to the national middle rather than the bottom, driven by repair labour costs, congestion and theft. The absence of a state income tax has no bearing on how carriers rate the state.
See what you’d be matched with in Washington
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Comparing carriers in Washington
Start by pricing property damage above $10,000. It is the most exposed number on a minimum Washington policy and typically one of the least expensive to increase, which makes it the clearest example of a coverage decision that is not really a price decision.
Because credit is permitted here and carriers weight it very differently, Washington is a state where the spread between quotes for the same driver can be wide. A driver with a thin or recovering credit file has more to gain from comparing broadly than the average.
One habit matters more than any single carrier choice: re-check every year or two, and again after anything that changes your risk profile — a move across town, a new vehicle, a driver added or removed, or a violation ageing off your record. Carriers re-weight their rating factors continuously, so the one that priced you best three years ago is often not the one that prices you best today.
If you need an SR-22 in Washington
Washington requires an SR-22 filing after certain suspensions, including driving without insurance and DUI convictions. Your insurer files it with the Department of Licensing and must notify the state if the policy lapses. Confirm the filing period that applies to your case with DOL, since it runs from your reinstatement date.
Washington auto insurance FAQ
- What is the minimum car insurance required in Washington?
- Liability coverage of at least $25,000 for injuries or death to one person, $50,000 for injuries or death to multiple people, and $10,000 for property damage.
- Can I drive in Washington without buying insurance?
- Only through one of three alternatives: a certificate of deposit filed with the Department of Licensing, a liability bond of at least $60,000 from an authorised surety company, or self-insurance, which is limited to owners of 26 or more vehicles. In practice nearly everyone buys a policy.
- Can Washington insurers use my credit score?
- Yes. The Insurance Commissioner issued an emergency rule banning it in 2021, but a Superior Court judge invalidated that rule in October 2021, finding the Commissioner lacked good cause and could not override the more specific statutes permitting credit use. Credit-based insurance scores remain in use in Washington.
- Is $10,000 of property damage coverage enough in Washington?
- It is the legal minimum, but it is thin against current vehicle values — a single at-fault collision with a late-model vehicle can exceed it, and you are personally responsible for the difference. Raising it is usually one of the cheapest changes available on a Washington policy.
- Is Washington an at-fault or no-fault state?
- Washington is an at-fault state. Personal injury protection is available and must be offered to you, but unlike in Oregon it is not compulsory.
Sources
Requirements on this page were verified against Washington’s own regulator and motor vehicle agency on the date shown at the top. Rules change — if you are making a decision that turns on an exact figure, confirm it at the source.
- Washington OIC — Mandatory auto/motorcycle insurance law
- Washington OIC — Learn how auto insurance works
- Washington OIC — Commissioner considers options after court ruling on credit scoring
Consumer help in Washington: Washington State Office of the Insurance Commissioner, (800) 562-6900.