How to Start a Business in Washington

Technology and Software is Washington's leading industry, with over 300,000 tech workers and major employers including Amazon, Microsoft, Google, and Meta. Seattle ranks as the second-largest tech hub in the U.S. by employment.

Aerospace and Defense remains a cornerstone of the state economy, with Boeing and hundreds of suppliers supporting over 136,000 jobs. The sector generates more than $70 billion in annual economic output.

Agriculture and Food Processing contributes over $12 billion annually, with Washington ranking first nationally in production of apples, hops, blueberries, and sweet cherries. The wine industry alone supports more than 1,000 wineries.

Clean Energy and Environmental Technology is growing rapidly, with the state's commitment to 100% clean electricity by 2045 driving investment in solar, wind, and battery storage startups.

Healthcare and Life Sciences employs over 400,000 workers statewide, with research institutions like the Fred Hutchinson Cancer Center and UW Medicine attracting federal grants and private investment.

Maritime and Logistics supports tens of thousands of jobs through the Ports of Seattle and Tacoma, with container volumes growing steadily as Pacific Rim trade expands.

Washington imposes no personal income tax and no corporate income tax. This is one of only nine states with zero income tax, making it particularly attractive for high-earning business owners.

Instead of income tax, Washington collects the Business and Occupation (B&O) tax on gross receipts. The most common rates are 0.471% for retailing, 0.484% for service businesses, and 0.484% for manufacturing. Some activities like insurance have rates up to 3.3%.

The statewide sales tax rate is 6.5%, but local jurisdictions add their own rates, pushing the combined average to about 9.29%. Seattle's combined rate is 10.25%. Register for sales tax collection through the Department of Revenue.

Washington has no franchise tax, which means LLCs and corporations do not face a minimum annual tax obligation simply for existing (unlike California's $800 franchise tax). Your only ongoing state fee is the annual report filing.

Property taxes in Washington average about 0.87% of assessed value, slightly below the national average. However, commercial property rates in King County can be significantly higher.

The B&O tax applies to gross receipts (not net profit), which means you owe this tax even if your business is operating at a loss. Plan your cash flow accordingly, especially in your first year.

Washington's cost of living index is approximately 110.7 (compared to the national average of 100), driven primarily by housing costs in the Seattle metro area. Rural areas and cities like Spokane, Tri-Cities, and Yakima are significantly more affordable, with cost-of-living indices near or below the national average.

Average commercial office rent in Seattle ranges from $35 to $55 per square foot annually, while Spokane and Tacoma offer rates between $15 and $25 per square foot. Coworking spaces in Seattle start at roughly $200 to $400 per month for a dedicated desk.

Washington's minimum wage is $16.66 per hour in 2026, one of the highest in the nation. Seattle's minimum wage is even higher at $20.76 per hour for most employers. Factor these labor costs into your financial projections before hiring.

Electricity rates in Washington average about $0.10 per kWh, among the lowest in the country thanks to the state's extensive hydropower infrastructure. Low energy costs benefit manufacturing, data centers, and any business with significant power needs.

The Washington Small Business Development Center (SBDC) offers free business consulting and help with SBA loan applications at locations across the state. Their advisors assist with financial projections, business plan reviews, and lender introductions.

The SBA Seattle District Office serves the entire state and connects founders with SBA-guaranteed loans starting at $500 through microloans and up to $5 million through 7(a) loans. They also run the 8(a) Business Development Program for disadvantaged entrepreneurs.

The Washington State Department of Commerce administers grant programs and tax incentives for businesses in targeted industries, including clean energy, manufacturing, and rural economic development. Some grants provide up to $250,000 for qualifying projects.

Community Development Financial Institutions (CDFIs) like Mercy Corps Northwest provide microloans from $500 to $100,000 for Washington entrepreneurs who may not qualify for traditional bank loans. These programs focus on underserved communities and early-stage businesses.

In your first 30 days, open your business bank account, set up accounting software, and apply for your Washington state business license ($50) through the Department of Revenue. Register for B&O tax and sales tax at the same time using the same application.

Between days 30 and 60, secure business insurance (including workers' comp if you have employees), register with the Employment Security Department if hiring, and set up payroll. Apply for any city business licenses required in your operating location.

By day 90, verify that your registered agent is active, confirm your first B&O tax filing period with the Department of Revenue, and note your annual report due date (the last day of your formation month each year). Use Geekdiys's compliance calendar to track every deadline automatically.