Pest Control Permit Requirements in Seattle, WA

Complete permit and license guide for starting a pest control in Seattle, King County, Washington.

$400 -- $1200 6–10 weeks to obtain all licenses and pass required exams 6 requirements

Not legal advice. Requirements may change — always verify with your local government authority before applying. Last verified: .

Seattle / King County Requirements

2 requirements
1

Seattle — General Business License

Seattle requires all businesses operating within city limits to obtain a general business license from the city. Pest control companies must renew annually and may be subject to additional zoning review.

$50–$200/year1–3 weeks
Official government source
2

Washington State Department of Agriculture — Pesticide Applicator License

Washington requires pest control businesses and applicators to be licensed by the Washington State Department of Agriculture (WSDA). All individuals applying pesticides commercially must hold a Commercial Pesticide Applicator license. Businesses must also be registered.

$35 exam fee; $100 business registration4–8 weeks (exam scheduling and processing)
Official government source

Washington State Requirements

2 requirements
1

Washington — Commercial Pesticide Applicator License

Washington requires pest control businesses and applicators to be licensed by the Washington State Department of Agriculture (WSDA). All individuals applying pesticides commercially must hold a Commercial Pesticide Applicator license. Businesses must also be registered.

$35 exam fee; $100 business registration4–8 weeks
Official government source
2

Washington — Sales Tax / Business Registration

Washington imposes Business and Occupation (B&O) tax on pest control services. Register with DOR.

No fee1–2 weeks
Official government source

Federal Requirements

2 requirements
1

EIN (Employer Identification Number)

Required if you have employees or operate as an LLC or corporation. Free from the IRS.

FreeImmediate (online application)
Official government source
2

EPA Federal Pesticide Requirements

Federal law (FIFRA) requires all pesticide applicators to use only EPA-registered products and follow label instructions. Commercial applicators must maintain application records for at least 2 years.

No federal feeOngoing compliance
Official government source

Official Sources

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