Food Truck Permit Requirements in Seattle, WA

Complete permit and license guide for starting a food truck in Seattle, King County, Washington.

$700 -- $1800 4–8 weeks to complete all permits and inspections 8 requirements

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

Seattle / King County Requirements

4 requirements
1

King County Public Health Mobile Food Unit Permit

Required for all mobile food units operating in King County, including Seattle. Issued by Public Health — Seattle & King County based on food risk level (Category 1–4). Higher-risk operations (full cooking) require Category 3 or 4 permits at higher fee tiers.

$400–$600/year depending on food risk category2–4 weeks after inspection
Official government source
2

Seattle Business License Tax Certificate

Required for all businesses operating within Seattle city limits. Issued by the City of Seattle Finance and Administrative Services department. Must be renewed annually.

$110/year1–2 weeks
Official government source
3

Commissary Agreement

Mobile food units in Seattle/King County must operate from an approved commissary — a licensed commercial kitchen for food prep, storage, and cleaning. You must submit a signed commissary agreement with your health permit application.

$300–$800/month (commissary rental, varies)Obtained before permit application
Official government source
4

Seattle Fire Department Inspection

Required if your food truck uses propane, open flame cooking, or grease-producing equipment. The Seattle Fire Department inspects for fire suppression systems and safe fuel storage.

No separate fee (included in permitting process)Scheduled concurrent with health inspection
Official government source

Washington State Requirements

3 requirements
1

Washington State Business License

Required for all businesses operating in Washington State. Issued by the Department of Revenue (DOR) via the Business Licensing Service (BLS). Covers state B&O tax registration, sales tax account, and other state endorsements.

$19/year (master license fee)1–2 weeks
Official government source
2

Food Worker Card

All food workers in Washington State must obtain a Food Worker Card by completing an accredited food safety training course. Issued by the local health department and valid for 2 years.

$10 per employeeSame day (online or in-person course)
Official government source
3

WA Dept of Agriculture Food Processor License

Required if your food truck sells packaged or processed foods to the public. Issued by the Washington State Department of Agriculture. Not required if all food is prepared and sold directly from the truck without packaging.

$85–$250/year depending on gross sales2–4 weeks
Official government source

Federal Requirements

1 requirement
1

EIN (Employer Identification Number)

Required if you have employees or operate as an LLC/corporation. Free from the IRS, obtained instantly online.

FreeImmediate (online application)
Official government source

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Track these permits automatically

Get deadline alerts and compliance monitoring for your food truck in Seattle, WA. Never miss a renewal or face a surprise inspection.

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Free forever for 1 business No credit card needed 60, 30 & 7-day alerts