Workers' Comp for Cleaning in Washington

Workers' Comp for Commercial Cleaning in Washington (2026)

Washington is monopolistic and uses a unique per-hour-worked premium model — not per $100 payroll. Risk Class 6602 (Janitorial and Pest Control) carries a 2026 base rate of $1.68/hour worked, translating to approximately $3.36/$100 payroll at $20/hour wages. COLA adjustments effective July 2025 increased benefits 6.8%.

MONOPOLISTIC — Washington State Department of Labor & Industries (L&I); no private WC carriers (except self-insured employers)Statute: RCW Title 51 — Industrial Insurance Act; RCW 51.08 (definitions); RCW 51.16 (premium rates); RCW 51.32 (benefits); RCW 51.48.010 (penalty for non-coverage); RCW 51.48.022 (stop-work order); WAC 296-17 (rate rules and risk classifications)Effective: Current; L&I 2026 rates effective January 1, 2026 (per L&I rate bulletin; 2025 overall composite base rate: $0.7441/hour worked; 2026: $0.7885/hour worked — 4.9% increase)Last reviewed: Q2 2026

Washington is a monopolistic WC state

Washington is one of four monopolistic workers' compensation states (alongside North Dakota, Ohio, and Wyoming). All Washington employers must purchase WC coverage exclusively from the Washington State Department of Labor & Industries (L&I) — private WC insurance carriers are not permitted to write Washington workers' compensation. About 25% of Washington workers are covered through certified self-insured employers (large corporations that have demonstrated financial capacity); the remaining 75% are covered through the state fund administered by L&I. Washington's WC system is authorized by RCW Title 51 (Industrial Insurance Act) and operates on a policy year running January 1 through December 31.

Washington L&I premium structure: per-hour, not per-$100

Washington is unique in using a per-hour-worked premium model rather than the per-$100-payroll model used by all other states. Each employer is assigned a Risk Class (not an NCCI class code), and premiums are calculated by multiplying total hours worked by the composite rate for that class. The premium is split between the employer and the employee — employees contribute a portion through paycheck withholding. This structure creates a fundamentally different bid-math approach for janitorial operators in Washington compared to all other states.

Risk class and rate (Washington 2026)

Risk Class 6602 — Janitorial Services and Pest Control. This is the correct Washington risk class for commercial janitorial service contractors. 2026 base rate: $1.6799 per hour worked (effective January 1, 2026; per L&I 2026 Rate Book; up from $1.6098/hour in 2025 — approximately 4.4% increase).
The $1.68/hour rate includes both the employer and employee portions of the composite base rate.
Equivalent rate in per-$100-payroll terms: at $20/hour wages, $1.68/hour ÷ ($20/hour × 100) × 100 = approximately $3.36/$100 payroll (varies with wage rate; higher wages = lower effective /$100 rate).
Premium formula: Total WC premium = Total hours worked × $1.6799 (employer portion), reported quarterly with L&I quarterly premium report.
Bid-math note: in Washington bids, load WC based on hours worked × $1.68 rather than the payroll-based formula used in other states. At $20/hour and 2,000 hours/year per FTE, WC cost ≈ $3,360/FTE/year.

Indemnity benefits (Washington 2025–2026)

Time-loss (TTD equivalent): 60%–75% of gross average monthly wage, depending on marital status and dependents (RCW 51.32.060). For 2025–2026: the state average annual wage (SAAW) increased from $89,138 (2024) to $95,160 (2025), triggering a 6.8% COLA effective July 1, 2025 (RCW 51.32.080).
Maximum time-loss benefit: approximately $1,758/week (2026; = 90% of SAAW/52). Exact figure announced annually by L&I.
Minimum: 15% of SAAW or actual wages, whichever is less (RCW 51.32.090).
Waiting period: 3 calendar days; first 3 days paid retroactively if disability exceeds 14 days (RCW 51.32.010).
Pension (PTD): payable for life at 60%–75% of AWW, with annual COLA adjustments.
PPD (permanent partial disability): rated under Washington's loss schedule (WAC 296-20-220); lump-sum payment based on body part and percentage of loss.

Coverage requirements and exemptions

All Washington businesses with 1 or more employees must register with L&I and obtain coverage or apply for self-insured status (RCW 51.12.010).
Exempt: domestic workers working under 40 hours/week in a single household; certain sole proprietors/partners doing work for which no labor is employed; cosmetologists/barbers renting booth space; musicians and entertainers at specific events; children under 18 employed by a parent for farm work.
Independent contractor test: Washington RCW 51.08.180 — workers are employees if the relationship has hallmarks of employment (tools/equipment, scheduling, regular ongoing work). Janitorial crews working under a contractor's direction are virtually always employees under Washington's test. L&I actively audits subcontractor coverage.

Experience rating (Washington L&I)

Washington L&I uses its own experience rating plan (WAC 296-17-880 through -890) with annual tables. Employers eligible for experience rating have 3+ years of coverage history. The modification formula compares actual primary losses to expected losses, with credibility factors based on size. Washington also offers a Retrospective Rating Program — a refund (or assessment) at policy year end based on actual loss ratios, available to employers with $10,000+ in standard premium. The retro program can return significant premium to janitorial contractors with low loss years.

Officer/owner waivers

Washington sole proprietors, partners, and single-member LLC owners may elect to exclude themselves from WC coverage by filing a waiver with L&I. Officers of corporations who own 10%+ of stock may also file for exclusion. Exclusions are submitted through the L&I online account and take effect prospectively. Excluded individuals have no WC coverage for their own injuries but are not counted in the premium calculation.

Penalties for non-compliance

Non-coverage penalty: greater of $1,000 or 2× the premiums that would have been owed for the 4 quarters before obtaining coverage (RCW 51.48.010).
Stop-work order (RCW 51.48.022): L&I may issue a stop-work order requiring immediate cessation of all business operations until compliance is achieved and all premiums/penalties paid. The stop-work order is effective at all employer worksites.
Violation of stop-work order: $1,000/day (base rate; adjusted to $1,161/day following July 2023 COLA adjustment per RCW 51.48.095).
Failure to keep records: $500 or 2× quarterly premium, whichever is greater (RCW 51.48.030; adjusted to ~$580 base post-2023 COLA).
Washington's penalty schedule undergoes inflation adjustments every 3 years (RCW 51.48.095); next adjustment expected July 2026.

Recent rate changes (2024–2026)

2025 rates: Risk Class 6602 composite base rate: $1.6098/hour. Overall composite rate for all classifications: $0.7441/hour (3.8% increase from 2024).
2026 rates: Risk Class 6602 composite base rate: $1.6799/hour (4.4% increase). Overall composite rate for all classifications: $0.7885/hour (4.9% increase over 2025).
July 1, 2025 COLA: Annual benefit COLA of 6.8% for time-loss, pension, and LEP benefits — one of the highest annual adjustments in recent years, driven by the 6.7% increase in Washington SAAW.