Washington Workers’ Comp: How the State Fund System Works for Employers
If you are used to buying workers’ comp from an insurance agent in another state, Washington will feel strange. There is no private market. Coverage comes from the Department of Labor and Industries (L&I), premiums are based on hours worked, not payroll dollars, and your employees pay part of the cost through payroll deductions. This guide explains how the system works, who has to be in it, and what happens to businesses that skip it.
Washington is a monopolistic state
RCW 51.14.010 gives every employer exactly two choices. You either insure with the state fund or you qualify as a self-insurer. Private carriers cannot sell standard workers’ compensation policies in Washington. Self-insurance is realistic only for large, financially strong employers, so for nearly every small business the answer is the state fund run by L&I.
Only a handful of states work this way. Ohio is another. If you have operations in several states, your multistate policy from a private carrier will not cover your Washington employees. You need a separate L&I account for them.
How Washington differs from most states
| Most states | Washington | |
|---|---|---|
| Where you buy coverage | Private carriers, sometimes a competitive state fund | L&I state fund only, or self-insurance |
| How premium is calculated | Rate per $100 of payroll | Rate per hour worked, by risk class |
| Who pays | Employer pays all of it | Employer pays most; workers pay part of the medical aid premium through deductions |
| How you open coverage | Apply through an agent | Apply for or update your state business license |
| Minimum number of employees | Varies, often 1 to 5 | One employee is enough |
Who has to be covered
If you hire employees, you need a workers’ comp account. L&I says that directly on its account page: if you are hiring employees, you must get a workers’ compensation account by applying for or updating your state business license. There is no three-employee or five-employee threshold. One part-time worker is enough.
RCW 51.12.020 lists the employments that are excluded from mandatory coverage. The ones that matter most to small businesses are:
- Sole proprietors and partners. The owners are not required to cover themselves. Their employees must be covered.
- Corporate officers who qualify. For a non-public corporation, an officer is exempt if the officer is a bona fide officer, holds issued stock, and exercises substantial control over a business function. Up to 8 officers can be exempt. In a family corporation where all officers are related within the third degree by blood or marriage, there is no limit. Officers of public corporations also cannot do manual labor as part of their duties if they want the exemption.
- LLC members. Members are generally exempt, but the exact rule depends on whether the LLC is member-managed or manager-managed. L&I’s recordkeeping guide explains the variations.
- Domestic workers in a private home. They are excluded unless the household has two or more employees regularly working 40 hours a week. Once two people are regularly working full time, all domestic workers in the home are covered.
- Others with narrow exclusions. These include booth renters, licensed insurance producers, certain newspaper carriers, musicians and entertainers on specific engagements, jockeys, and for-hire drivers who own or lease their vehicles.
Exempt owners and officers can usually choose to buy coverage for themselves through L&I’s elective coverage application.
Independent contractors
Washington’s test for independent contractors is strict, and L&I warns that you could be liable for workers’ comp and unemployment claims if you get it wrong. If you pay people as contractors, read L&I’s guide “Independent Contractor or Covered Worker?” before tax season, not after an audit. When L&I reclassifies a contractor as a worker, it will bill you for the hours that should have been reported.
Premiums: hours, not dollars
Every quarter you report the hours each covered worker worked, by risk classification, and pay the premium. A roofer and a receptionist are in different classes with very different hourly rates. File on time. If you do not, L&I can estimate your hours and bill the estimate, which is usually higher than what you actually owe.
RCW 51.16.140 requires employers to deduct from each worker’s pay one-half of the medical benefits premium for that worker’s class. The same section makes it unlawful to deduct any other part of the premium from wages. So you withhold the worker’s share of the medical aid portion, and the rest is yours to pay.
Keep the records behind your reports. L&I’s guide says to keep employment records, including a summary of hours worked each quarter, for three full calendar years after the year the work happened.
Example: a small café in Spokane
The owner runs the café as a sole proprietor and has two baristas and a part-time baker. The owner is not required to cover herself. All three workers must be covered. Each quarter she reports their hours under the restaurant classification, withholds each worker’s share of the medical aid premium from their paychecks, and sends the full premium to L&I. When she adds a delivery driver who uses his own car, the driver goes into a different class and his hours are reported separately.
What happens if you operate without coverage
RCW 51.48.103 makes it a gross misdemeanor to engage in business subject to the Act without a certificate of coverage. The statute also reaches officers personally. It is a gross misdemeanor for the president, vice president, secretary, treasurer or another officer to cause or permit the company to operate without coverage.
Operating after L&I has revoked your certificate of coverage is a class C felony, again for both the company and the officers who allow it.
Contractors face one more consequence. Under RCW 39.12.055, a contractor with two or more qualifying violations in five years, including workers’ compensation violations, cannot bid on public works contracts for one year. For a construction company that depends on public jobs, that can be worse than the fine.
Quick checklist
- Hiring your first employee? Update your business license to open the L&I account before the first shift.
- Sort every worker into the right risk class.
- Withhold only the worker’s share of the medical aid premium. Nothing else.
- Report hours every quarter, on time.
- Keep hour records for three full calendar years.
- Review anyone you pay as a contractor against L&I’s test.
Related guides
- State fund vs private workers’ comp insurance
- Ohio workers’ comp requirements (also monopolistic)
- Do 1099 contractors need workers’ comp?
- Workers’ comp for sole proprietors
- Penalties for not having workers’ comp by state
Sources
- RCW 51.14.010, securing payment of compensation
- RCW 51.12.020, excluded employments
- RCW 51.16.140, premium and worker deductions
- RCW 51.48.103, operating without coverage
- L&I, how to get a workers’ comp account
- L&I, corporate officers
Last checked against the sources above on October 2, 2026. Laws change, so confirm with L&I before making coverage decisions.