WA · Licensing Reference

Janitorial business licensing — Washington

Last reviewed: June 2, 2026  |  Primary sources: Washington Secretary of State; WA DOR; WA L&I; SBA.gov

Washington State's compliance environment for commercial cleaning businesses is one of the most layered in the nation. Three defining features set it apart: (1) Washington is a monopolistic workers' compensation state — all WC coverage goes exclusively through L&I; (2) Washington has no state income tax but levies the B&O tax on gross service revenue; and (3) a stack of additional payroll obligations — WA Cares Fund, Paid Sick Leave, and Paid Family and Medical Leave — add real cost to every Washington hire. Getting all layers right before your first Washington contract is the only way to protect your margins.

Washington L&I — Monopolistic State Fund Workers' Compensation

Washington is a monopolistic workers' compensation state: all employers must purchase WC coverage exclusively from the Washington State Department of Labor and Industries (L&I), P.O. Box 44148, Olympia, WA 98504 (phone: 360-902-4817). No private WC carrier can write Washington WC coverage. Coverage is required for all employers with even one employee performing work in Washington (sole proprietors working solo must affirmatively elect coverage). L&I assigns risk classes using WAC 296-17A codes rather than NCCI. Commercial janitorial contractors fall under Risk Class 6602-03 (Janitorial Cleaning Services, N.O.C.), with a 2025 base rate of $1.5371 per hour worked (expressed per labor-hour, not per $100 of payroll — a key distinction from NCCI states). Premiums are split: the employer pays a base rate, and the employee contributes a portion deducted from wages. Register through L&I's online portal; failing to maintain coverage results in stop-work orders, a 50%-of-owed-premium penalty, and personal owner liability for all claims during the uninsured period.

Washington B&O Tax — No Income Tax, But Gross Revenue Is Taxed

Washington has no state income tax on corporations or individuals. Instead, the state levies the Business and Occupation (B&O) tax on gross receipts. Cleaning services are classified under "service and other activities": the 2025 rate is 1.5% for businesses below $1 million in Washington gross revenue and 1.75% for those at $1 million or more. Effective October 1, 2025, under H.B. 2081, businesses with gross income over $5 million pay 2.1%. The B&O tax applies to all gross revenue with no deductions for wages, supplies, or overhead — model it as a fixed cost percentage. Register through the Washington Department of Revenue (DOR), P.O. Box 47467, Olympia, WA 98504 (phone: 360-705-6705), and file excise tax returns monthly, quarterly, or annually. Washington does not impose sales tax on commercial cleaning services, but cleaning supplies you purchase are subject to retail sales tax (6.5% state plus local).

WA Cares Fund — Long-Term Care Payroll Tax

The WA Cares Fund (RCW 50B.04) is the nation's first state-operated long-term care program, funded by a mandatory employee payroll tax. Beginning July 1, 2023, employers must deduct 0.58% of every W-2 employee's total wages — with no wage cap — and remit to the Employment Security Department (ESD). The employer's obligation is to withhold and remit; the cost falls on the employee. For a cleaning employee earning $40,000/year, the deduction is $232 annually. Employees vest after 10 years of contributions (or 3 of the last 6 years with 500+ hours/year) and become eligible for up to $36,500 in lifetime long-term care benefits beginning July 2026. Failure to withhold and remit triggers ESD penalties and interest.

Washington Paid Sick Leave — Initiative 1433

Washington's Paid Sick Leave law (Initiative 1433, RCW 49.46.200 et seq., effective January 1, 2018) requires all employers to provide paid sick leave to all employees — including part-time and temporary workers — at one hour of accrual for every 40 hours worked, with up to 40 hours carryover annually. Eligible uses cover the employee's own or a family member's illness, and school or workplace closures due to public health emergencies. For cleaning companies with large part-time workforces, paid sick leave must be tracked from the first day of employment for every worker.

Washington Paid Family and Medical Leave

Washington's Paid Family and Medical Leave (PFML) program (RCW 50A), administered by ESD, provides eligible employees up to 12 weeks of paid family leave and 12 weeks of paid medical leave. The combined 2024 contribution rate is 0.74% of wages up to the Social Security wage base. Employers with 50 or more employees contribute approximately 27.24% of the combined rate; employers with fewer than 50 pay no employer share but must withhold and remit the employee share. For a cleaning company growing from 45 to 55 employees, the employer-contribution threshold triggers a meaningful new cost — model this into expansion plans.

Washington Equal Pay and Opportunities Act

The Equal Pay and Opportunities Act (EPOA) (RCW 49.58), enforced by L&I, requires employers with 15 or more employees to disclose a wage scale or salary range, benefits description, and other compensation details in every job posting — including cleaning crew positions — effective January 1, 2023. As of July 27, 2025, amended legislation provides a 30-day cure period for first EPOA violations (sunsets July 27, 2027). Penalties run $500–$1,000 per violation. Update all job postings — on your website, Indeed, and any platform — with pay range and benefits before posting once you reach 15 employees.

L&I Safety Division — WISHA Enforcement

Washington's occupational safety program (WISHA) is administered by L&I's Division of Occupational Safety and Health (DOSH). DOSH covers private and public employers and enforces WAC 296 standards. For BSCs, enforcement focuses on hazard communication (WAC 296-901 — SDS access, GHS labeling, annual employee training), ergonomics for repetitive-motion cleaning tasks (WAC 296-62-051), and bloodborne pathogen programs for healthcare accounts. Free on-site consultation is available through the DOSH Consultation program. Serious-violation penalties mirror federal OSHA maximums of $15,625 per incident.

Unemployment Insurance and Business Registration

Register with the Washington Employment Security Department (ESD), P.O. Box 9046, Olympia, WA 98507 (phone: 800-647-1637). Washington's taxable wage base is $68,500 per employee per year (2024) — the highest in the contiguous U.S. — which significantly inflates UI premium cost compared to states with $9,000–$15,000 wage bases. New employer cleaning-industry rates typically start in the 1.0%–2.0% range. Register your entity through the Washington DOR for a Unified Business Identifier (UBI); LLC formation costs $180 through the Secretary of State. Seattle requires a Seattle Business License with fees based on annual revenue starting at $55; Tacoma, Bellevue, and Spokane have their own municipal license requirements.

Independent Contractor Classification

Washington's monopolistic WC system creates unique subcontractor verification obligations. Because there are no private WC carriers, there is no third-party COI to verify — you must confirm each subcontractor has their own active L&I account through L&I's online Contractor Verify system at secure.lni.wa.gov/verify/. A subcontractor without their own L&I account may be deemed your employee retroactively, triggering back premiums plus a 50% penalty and personal owner liability for all WC claims. For ESD and L&I labor-law purposes, Washington applies a common-law control test; cleaning workers who report to your dispatch, use your equipment, and work exclusively your client list are employees regardless of contract language.

Primary sources

Page last reviewed: June 2, 2026. Primary sources: Washington Secretary of State; WA DOR; WA L&I; SBA.gov. Spot an error? Contact us.