Last updated: April 30, 2026

How to Start a Cleaning Business in Washington State (2026)

The single most important thing to understand before starting a cleaning business in Washington is that WAC 458-20-172 divides cleaning services into two tax categories that look similar but are taxed completely differently. Routine janitorial services (recurring commercial or residential cleaning – dusting, floor cleaning and waxing, interior wall and woodwork cleaning, in-place rug/drape/upholstery cleaning, dusting, trash disposal, bathroom cleaning, interior and exterior window washing) are taxed only under the Service & Other Activities B&O (1.5% on gross under $1M, 1.75% $1M-$5M, 2.1% $5M+) and are NOT subject to retail sales tax. Specialized or non-repetitive cleaning (post-construction cleanup, fire/flood restoration, exterior wall cleaning, septic tank cleaning, sandblasting, plant/industrial machinery cleaning, snow removal, pressure washing) is a retail sale – taxable under Retailing B&O at 0.471% PLUS retail sales tax (state 6.5% + local up to 4.1%, Seattle 10.35%). The distinction is “regular and normal” vs. “specialized or one-time,” not residential vs. commercial.

The other 2026-relevant change: in March 2026 Governor Ferguson signed Washington’s statewide Domestic Workers’ Bill of Rights, extending labor protections to about 100,000 housekeepers, nannies, cooks, home care providers, and gardeners. Residential cleaning operators who employ direct-hire workers (not just hire independent contractors through a platform) need to update written agreements, wage practices, anti-retaliation procedures, and privacy protections to comply.

Washington Cleaning Business Requirements at a Glance

Requirement	Agency	Cost	Timeline
LLC Certificate of Formation	WA Secretary of State	$200 online + $70 annual report	Same-day online
UBI / Business License Application	DOR Business Licensing Service	$90 + city endorsements (Seattle, Tacoma, Spokane, Bellevue)	~10 business days
Classify janitorial vs. specialized cleaning	DOR (WAC 458-20-172)	Janitorial = no sales tax; Specialized = full retail sales tax + Retailing B&O	From first job
Janitorial Bond (recommended for commercial)	Surety company	$10K-$25K bond, $100-$300/yr premium	Required by many B2B contracts
General Liability Insurance	Private carrier	$500-$1,500/yr typical	Required for most commercial accounts
L&I Workers’ Comp (monopolistic – if employees)	L&I state fund	Risk class 9014 commercial / 0917 residential domestic	Before first W-2 employee
PFML / WA Cares / UI / Min wage	ESD / WA Cares Fund	1.13% PFML + 0.58% WA Cares + UI on $78,200 + $17.13 (state) or $21.30 (Seattle) min wage	From first employee
Domestic Workers’ Bill of Rights compliance (residential employers)	State (statewide March 2026); Seattle DWSB ordinance	No fee; written agreements, wage protections, anti-retaliation	Effective 2026

How to Start a Cleaning Business in Washington (Step by Step)

Step 1: Form Your LLC and Get Your UBI

File a Certificate of Formation with the Secretary of State CCFS portal: $200 online or $180 paper. $70 annual report. Get a free EIN. File the DOR Business License Application ($90) for your UBI. Add city endorsements if you’ll work in Seattle, Tacoma, Spokane, Bellevue, or other municipal jurisdictions.

Step 2: Classify Your Services Correctly Under WAC 458-20-172

This is the WA cleaning industry’s most-audited area. Get the classification right from job one.

Janitorial Services – NOT Subject to Retail Sales Tax

Per DOR’s Janitorial Services Industry Guide, “janitorial services” means activities performed regularly and normally by commercial janitor service businesses, including:

• Washing of interior and exterior window surfaces
• Floor cleaning and waxing
• Cleaning of interior walls and woodwork
• In-place cleaning of rugs, drapes, and upholstery
• Dusting
• Disposal of trash
• Cleaning and sanitizing of bathroom fixtures

Tax treatment: Service & Other Activities B&O only – 1.5% (gross under $1M), 1.75% ($1M-$5M), 2.1% ($5M+). No retail sales tax. This applies whether the customer is residential or commercial – the test is “regular/recurring” not “where the cleaning happens.”

Specialized / Non-Repetitive Cleaning – IS Subject to Retail Sales Tax

Per WAC 458-20-172, “janitorial services” does NOT include:

• Cleaning the exterior walls of buildings (window washing on the outside is okay; exterior wall washing is not)
• Cleaning of septic tanks
• Special cleanup jobs required by construction, fires, floods, etc.
• Painting, papering, repairing
• Furnace or chimney cleaning
• Snow removal
• Sandblasting
• Cleaning of plant or industrial machinery
• Other specialized cleaning that is not “regular and normal”

Tax treatment: Retailing B&O 0.471% PLUS retail sales tax (state 6.5% + local). The customer pays the sales tax; you remit it. Use the destination rate (where the work was performed). Seattle ~10.35%, Bellevue ~10.3%, Tacoma ~10.3%, Spokane ~9.0%, Olympia ~9.5%, Vancouver ~8.7%.

If you do both kinds of work, separate invoicing and bookkeeping for each is the only safe approach. Mixing them on one invoice creates audit risk – DOR can reclassify your entire revenue line if it’s unclear.

Step 3: Get Insurance and a Janitorial Bond

• General liability insurance: $1M/$2M is standard for cleaning operators. Annual premium $500-$1,500 for residential-focused; $1,200-$3,500 for commercial accounts.
• Janitorial bond / theft bond: $10,000-$25,000 typical; surety premium $100-$300/year. Most large commercial property managers require it. Protects the customer against employee theft.
• Commercial auto: Required if you have vehicles registered to the business. Personal auto policies typically exclude commercial use.
• Inland marine / equipment floater: Covers vacuums, buffers, and tools.
• Workers’ compensation through L&I: Mandatory for any cleaning employer with one or more W-2 employees. Risk class 9014 (Commercial Janitorial), 9015 (Building Service Contractors), or 0917 (Residential Domestic) typical. Per worker hour, varies by experience modifier. Sole proprietors and single-member LLC owners with no employees are exempt but may opt in.

Reminder: private workers’ comp is illegal in Washington. All workers’ comp must come from the L&I monopolistic state fund.

Step 4: Comply with Washington’s Domestic Workers’ Bill of Rights (March 2026)

Washington’s statewide Domestic Workers’ Bill of Rights was signed into law by Governor Bob Ferguson in March 2026, extending labor protections to approximately 100,000 housekeepers, nannies, cooks, home care providers, and gardeners across the state.

Key provisions affect any residential cleaning operator who employs direct-hire workers (not platform contractors classified as independent):

• Written work agreements required for ongoing engagements
• Wage protections – timely payment, accurate paystubs, overtime where applicable
• Anti-retaliation for reporting harassment or wage violations
• Anti-discrimination
• Privacy protections – boundaries around personal items, surveillance, communication
• Immigration status safeguards – employers cannot use immigration status to retaliate or coerce
• Workers’ comp coverage for domestic workers (L&I)

For residential cleaning businesses operating in Seattle, the city’s existing Domestic Workers Standards Board ordinance remains in force and adds Seattle-specific requirements: predictable schedules, meal/rest break protections, and standards-board oversight.

Step 5: Run the WA Payroll Stack

Cleaning is a labor-heavy industry; the WA payroll stack is the dominant cost structure:

• State minimum wage 2026: $17.13/hour (rising from $16.66 in 2025)
• Seattle minimum wage 2026: $21.30/hour (no more small/large split)
• Other higher-minimum jurisdictions: SeaTac, Tukwila, Renton, Bellingham, Everett, Burien, unincorporated King County
• Overtime: 1.5x after 40 hours/week (federal FLSA); same threshold under WA law
• UI through ESD: $78,200 wage base 2026
• PFML: 1.13% in 2026 (employer share 28.57% if 50+ employees)
• WA Cares: 0.58% withheld from employee wages
• Workers’ comp: L&I per worker hour at risk class 9014/9015/0917
• State Paid Sick Leave: 1 hour earned per 40 worked, no usage cap

For a Seattle commercial cleaner billed at, say, $0.18/sq ft for monthly office cleaning, the burdened labor cost (wage + employer payroll taxes + workers’ comp + benefits) typically runs 40-50% above the gross hourly rate. Bid accordingly.

Step 6: Seattle Office of Labor Standards Compliance

If you have employees working in Seattle, the Seattle Office of Labor Standards enforces several layered ordinances:

• Paid Sick & Safe Time (PSST): 1 hour earned per 30 worked – more generous than state’s 1 per 40. Use carries over up to 72 hours/year for large employers (small employer caps lower).
• Wage Theft Ordinance: Strict requirements for paystubs, prevailing wage compliance, recordkeeping, and posted notices.
• Domestic Workers Standards Board: Seattle ordinance for residential domestic workers – reinforced by the statewide 2026 law.
• Fair Chance Employment: Restrictions on use of criminal background in hiring decisions.
• Hotel Worker Protections: Not directly applicable to most cleaning businesses unless servicing hotels with required additional protections.

Seattle Business License Tax Certificate is required if you have employees, a Seattle physical location, or $2,000+ in annual gross receipts in Seattle. Add it through your DOR Business License Application as a Seattle endorsement.

Washington Cleaning Market: Demand and Pricing

Three distinct WA cleaning markets:

1. Seattle/Eastside premium residential: Tech-employer households (Amazon, Microsoft, Meta, Google) drive premium pricing for recurring residential cleaning, often $200-$400/visit for 2-3 bedroom homes. Move-in/move-out, post-construction, and Airbnb-turnover specialty cleaning all command higher rates here. Many operators serving this market use platform-style booking (Handy, Tidy, MaidPro) or independent recurring contracts.
2. Commercial / Office Cleaning: Pricing on $/sq ft/month for recurring janitorial. Seattle/Bellevue/Redmond Class A office buildings paid premium during peak tech-office utilization; remote-work shift since 2020 has compressed demand somewhat. Tacoma and Spokane commercial pricing 30-40% below Seattle.
3. Specialty / Restoration: Post-construction cleanup, water/fire damage restoration, COVID-style disinfection, exterior pressure washing – this is the taxable category under WAC 458-20-172, and pricing reflects the specialized nature. Often paired with insurance restoration referrals.

Wildfire smoke season impact: Western WA summers now reliably include 1-3 weeks of severe wildfire smoke, which drives demand for HVAC duct cleaning, indoor air quality services, and commercial filter swaps. This is taxable specialized cleaning.

Cost to Start a Cleaning Business in Washington

Item	Solo Owner-Operator	3-Tech Crew Startup
LLC + UBI + EIN	$290	$290
General Liability + Commercial Auto	$700-$2,500/year	$2,000-$5,000/year
Janitorial Bond ($10K-$25K)	$100-$300/year premium	$200-$500/year
L&I Workers’ Comp (per FTE)	n/a if owner-only	$2,000-$4,500/year per FTE
Equipment (vacuums, buffers, mops, supplies)	$800-$3,000	$3,000-$10,000
Vehicle (used for transport)	$5,000-$15,000 (or use personal w/ commercial endorsement)	$10,000-$30,000
Cleaning supplies / chemicals (initial)	$300-$800	$1,200-$3,000
Software (scheduling, invoicing)	$30-$80/mo	$80-$200/mo
Marketing / website / Google Ads	$500-$2,000 first year	$2,000-$8,000 first year
First-year out-of-pocket	~$3,000-$15,000	~$25,000-$70,000

Related Washington Business Guides

← Back to all Washington business guides

Other industry guides for Washington:

• Food Truck in Washington
• Daycare in Washington
• HVAC in Washington
• Hair Salon in Washington
• Landscaping in Washington
• Private Investigator in Washington

Frequently Asked Questions

Are cleaning services taxable in Washington State?

It depends on the type. Routine janitorial services (recurring cleaning – dusting, floor, window, bathroom, in-place rugs/drapes, trash disposal) are NOT subject to retail sales tax under WAC 458-20-172 – taxed only under Service & Other Activities B&O at 1.5% (under $1M). Specialized or non-repetitive cleaning (post-construction cleanup, fire/flood restoration, exterior wall washing, septic tanks, sandblasting, snow removal, industrial machinery cleaning, pressure washing) IS taxable as a retail sale – Retailing B&O at 0.471% plus retail sales tax (state 6.5% + local). The test is “regular and normal” vs. “specialized or one-time,” not residential vs. commercial.

Do I need a license to clean houses in Washington?

No state-level cleaning license is required. You need an LLC (or other entity), a UBI through the DOR Business License Application ($90), a federal EIN, and any city endorsements (Seattle, Tacoma, Spokane, Bellevue) for jurisdictions where you operate. If you employ workers, you also need ESD UI registration, PFML/WA Cares enrollment, and L&I workers’ comp through the state fund. General liability insurance and a janitorial bond are recommended (and often required by commercial customers) but not legally mandated.

What is Washington’s Domestic Workers’ Bill of Rights?

Washington’s statewide Domestic Workers’ Bill of Rights was signed by Governor Bob Ferguson in March 2026, extending labor protections to ~100,000 housekeepers, nannies, cooks, home care providers, and gardeners across the state. Key provisions: written work agreements, wage protections, anti-retaliation, anti-discrimination, privacy protections, immigration status safeguards, and L&I workers’ comp coverage for domestic workers. Affects residential cleaning operators who directly employ workers (vs. independent contractors). Seattle’s Domestic Workers Standards Board ordinance remains separately in force with additional Seattle-specific requirements.

Is workers’ comp required for a cleaning business in Washington?

Yes if you have W-2 employees. Workers’ comp must come from the L&I monopolistic state fund – private workers’ comp is illegal in Washington. Risk classes are 9014 (Commercial Janitorial), 9015 (Building Service Contractors), or 0917 (Residential Domestic). Premiums are calculated per worker hour by risk class and your experience-modified factor (after about three years of claims history). Sole proprietors and single-member LLC owners with no employees are exempt but may opt in.

What is a janitorial bond and do I need one?

A janitorial bond (also called a fidelity or theft bond) is a surety bond protecting the customer against employee theft. Typical face value is $10,000-$25,000 with a surety premium of $100-$300/year. While not legally required, most large commercial property managers, office buildings, and government contracts require bonded cleaners as a contract precondition. Residential operators often skip the bond unless serving high-end accounts.

What is the 2026 minimum wage for cleaning workers in Washington?

Statewide $17.13/hour effective January 1, 2026. Seattle is $21.30/hour with no small/large employer split as of 2026. SeaTac, Tukwila, Renton, Bellingham, Everett, Burien, and unincorporated King County also exceed the state rate. Tacoma and Spokane currently follow the state $17.13. The full burdened labor cost (wage + UI + PFML + WA Cares + L&I + state PSL) for a Seattle cleaner runs roughly 40-50% above gross hourly wage.

How is cleaning service B&O different from other industries?

For recurring/janitorial work, you pay only Service & Other Activities B&O (1.5% under $1M) with no retail sales tax collection – the cleaner-friendly path. For specialized cleaning (post-construction, restoration, exterior walls, septic, machinery, snow removal), you pay Retailing B&O (0.471%) AND collect retail sales tax (6.5% state + local). Mixed operators must invoice and book the two streams separately. Compared with PA where cleaning IS taxable in most cases or NC where it’s not taxed at all, WA’s split-by-service-type rule is unique.