State guide
Motorcycle insurance in Washington
Washington has required motorcycle liability insurance since July 28, 2019. The 25/50/10 minimums, universal helmet law, lane-splitting status, and 2026 premium averages.
Minimum liability
25 / 50 / 10
Bodily injury / per accident / property ($000)
Helmet law
UniversalAll riders and passengers, all ages; U.S. DOT-standard helmet with strap fastened (RCW 46.37.530).
Mandate
Riders must hold a motorcycle endorsement on the license to operate a motorcycle in Washington.
Average premium ranges in Washington
| Rider profile | Minimum | Full | Full + custom |
|---|---|---|---|
| Clean-record commuter34 yrs · 5 yrs riding · mid-size cruiser | $90–$140 | $220–$350 | $270–$410 |
| New rider21 yrs · under 1 yr · 300cc standard | $180–$280 | $460–$730 | — |
| Sport-bike rider28 yrs · 4 yrs riding · liter-class sport | $200–$310 | $520–$810 | $610–$950 |
| Experienced touring rider48 yrs · 20 yrs riding · touring bike | $100–$150 | $250–$390 | $300–$460 |
Motorcycle liability insurance is mandatory in Washington, and has been only since July 28, 2019, when the legislature struck motorcycles from the exemption list in the state's mandatory-insurance law [Washington Office of the Insurance Commissioner, 2026]. The floor is 25/50/10 — $25,000 of bodily-injury coverage per person, $50,000 per accident, and $10,000 for property damage [RCW 46.29.090, 2026]. A rider who last checked the rules before 2019 is working from a repealed exemption, and riding bare is now a traffic infraction.
How to shop for coverage in Washington
Fix the property-damage line first. Washington's $10,000 floor is the piece of the minimum that runs out fastest, since $10,000 does not replace a newer car, and raising it is cheap relative to the exposure it closes.
Washington also honors two substitutes for a policy: a liability bond of at least $60,000 from an authorized surety, or a certificate of deposit with the Department of Licensing [Washington Office of the Insurance Commissioner, 2026]. Almost nobody shops that way; tying up $60,000 to avoid a modest annual premium is not a trade many riders take.
The bike matters as much as the rider. A sport bike quotes on its own curve, custom parts need their own endorsement conversation, and a financed machine of any type carries the lender's collision-and-comprehensive requirement on top of the state's liability floor.
Carriers confirmed to write motorcycle coverage in Washington include Allstate, GEICO, Harley-Davidson, Liberty Mutual, Markel, Nationwide, Progressive, State Farm, and USAA. That list is alphabetical, not a ranking — availability is a fact, not an endorsement, and several regional insurers write here too; confirm a carrier serves your ZIP when you quote.
Washington coverage requirements
The controlling statute is RCW 46.30.020, and its history is the story. Until 2019 it required insurance for cars while exempting motorcycles; that session's legislature removed the carve-out effective July 28, 2019, leaving mopeds, motor-driven cycles, and wheeled ATVs as the only exempt classes [RCW 46.30.020, 2026]. A motorcycle rider now carries the same obligation as a driver: hold coverage at the minimums, keep proof of it, and produce that proof at a stop. Failing to show proof is a traffic infraction.
| Coverage | Washington minimum | |---|---| | Bodily injury per person | $25,000 | | Bodily injury per accident | $50,000 | | Property damage | $10,000 |
The dollar floors come from the financial-responsibility chapter [RCW 46.29.090, 2026]. Treat the $10,000 property-damage figure as a starting bid, because the at-fault rider personally owes whatever a repair or replacement costs beyond it. The requirements guide explains the layers above the floor, and the state directory shows where 25/50/10 ranks.
Washington helmet law
Universal, with a federal anchor. Every motorcycle operator and passenger in Washington must wear a helmet meeting the U.S. Department of Transportation standard, carrying the manufacturer's certification under 49 C.F.R. 571.218, with the chin or neck strap fastened while the bike is moving [RCW 46.37.530, 2026]. No age exemption exists. The statute's exceptions cover antique motor-driven cycles and enclosed three-wheelers with seat belts, which is to say they do not cover anything most riders own. The certification detail has teeth: a novelty shell without the DOT label fails the statute even with the strap cinched.
Lane-splitting legality in Washington
Illegal, and regularly revisited in Olympia. The statute allows two motorcycles abreast in a single lane and prohibits everything narrower: no passing within the lane a vehicle occupies, no operating between lanes of traffic or adjacent rows of vehicles [RCW 46.61.608, 2026]. Filtering bills keep appearing — the current attempt, House Bill 1367, would let motorcycles use the right shoulder of limited-access highways and has sat in the House Transportation Committee since its February 2026 hearing [Washington State Legislature, HB 1367, 2026]. Until one passes, filtering through Seattle gridlock is a moving violation with fault implications attached.
Washington's published full-coverage average is $290 a year against the national $364, with minimum coverage near $110 (MoneyGeek, 2026). The methodology behind those numbers is a standardized profile (a 40-year-old rider with a clean record on a mid-size bike), so treat them as a state-to-state ranking rather than a quote. Wet-season storage, the bike itself, and everything above minimum coverage move a real Washington premium; the cost guide itemizes the levers.
Washington-specific considerations
The 2019 change still catches people. Riders licensed before it were taught, correctly at the time, that Washington did not require motorcycle insurance, and a bike registered continuously since then never triggered a paperwork moment forcing the update. The mandate attaches to operating the motorcycle, so the garage veteran pulling a long-stored bike back onto the road needs a policy in force from the first mile.
Western Washington's calendar argues for a lay-up structure rather than cancellation. A lay-up structure keeps the premium honest through the wet months without opening the coverage lapse that canceling outright would trigger on the way back in. East of the Cascades the season runs longer and the calculus shifts toward year-round coverage.
Cross-border riders can compare Oregon and Idaho, which set different floors, in the directory.