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How to Start a Business in Washington

Starting a business in Washington requires understanding key rules at federal, state, and local levels.
 
State Requirements

 

Business Structure Registration: Register with the Secretary of State for LLCs/corporations. Get a UBI from the DOR.

State Business License: Required if you make over $12,000/year, collect sales tax, or hire employees. Apply via the DOR.

Local Business Licenses: Required in city limits; check city websites. Some unincorporated areas may not require them unless regulated.

Zoning and Land Use Compliance: Confirm zoning compliance through the county or city planning department.

Building Permits and Certificate of Occupancy: Required for construction or commercial occupancy. Apply through local planning agencies.

Health Department Permits (Food Businesses): Obtain food permits from local health departments or WSDA for cottage food.

Tax Obligations: Register for sales, B&O, and personal property tax. File with the DOR and local assessor.

Labor Regulations: Follow wage, sick leave, and worker’s comp rules. Register with L&I and ESD if hiring.

Environmental Compliance: Permits may be required if impacting air, water, or waste.

Federal Requirements: Obtain an EIN from the IRS. Follow OSHA, ADA, and tax regulations.