Do you need a business license in Washington State
You're required to apply for a state business license if any of the following apply:
- Your business earns or expects to earn more than USD $12,000 per year in gross revenue
- You hire employees
- You collect Washington state sales tax
- You operate under a trade name (DBA) that differs from your legal name
A few categories are exempt: some nonprofit organizations, businesses with no Washington nexus, and certain federally regulated activities.
But if you're launching a standard LLC, a sole proprietorship, or a corporation in Washington, assume you need the license and verify any exemptions with the Washington Department of Revenue rather than the other way around.
A Washington state business license is the state's official authorization for a business to operate. It's issued through the Business Licensing Service and acts as the central registration point for several things founders eventually need:
- Tax accounts
- Regulatory registrations
- Trade name registration
- City licensing endorsements
In most cases, online business license applications are typically processed in about 10 business days, while endorsements or additional approvals can extend the timeline by another 2–3 weeks.
The business license is foundational not bureaucratic. It's what connects your business to Washington's tax system, allows you to hire employees legally, and activates the ability to add city or industry-specific endorsements. Without it, you can't open certain business accounts, collect sales tax, or establish payroll.
Types of business licenses in Washington State
Washington's licensing system is easier to navigate once you understand how it layers. The state license is always the starting point. Everything else city endorsements, professional licenses, industry permits sits on top of it.
Washington State business license
It's filed through the Department of Revenue's Business Licensing Service and registers your company with state tax systems, regulatory databases, and local licensing where applicable.
It applies to founders forming an LLC in Washington state, sole proprietors selling products or services, businesses collecting Washington sales tax, companies hiring employees within the state, and businesses operating under a trade name.
Costs:
- USD $90 Business License Application fee (new or reopening business)
- USD $5 annual renewal processing fee
- USD $5 trade name (DBA) registration, if applicable
What the USD $90 fee actually covers: it's not just a filing fee. This single application registers your company across multiple state systems simultaneously with taxes, regulatory requirements, and city licensing endorsements if you add them.
How to apply:
- Form your entity first: If you're registering as an LLC or corporation, file with the Washington Secretary of State before starting your BLS application. The online LLC filing fee is USD $200 (USD $180 filing + USD $20 online processing).
- Create a SecureAccess Washington (SAW) account at MyDOR. This is your portal for the application and all future license management.
- Complete the Business License Application (BLS 700-028). You can do this online through MyDOR or by mail to Business Licensing Service, PO Box 9034, Olympia, WA 98507-9034.
- Provide your business details: The form collects your legal business name, trade name if applicable, business address, owner or responsible party information, NAICS business activity code, and expected revenue and employee counts.
- Pay the USD $90 application fee: Credit and debit cards are accepted online. Checks are payable to the Department of Revenue for mail applications.
- Receive your UBI number (Unified Business Identifier) and license confirmation. Online applications typically process within 10 business days. Your UBI becomes your company's identifier across all Washington state agencies, tax filings, and future permit applications.
City licenses and endorsements
Washington businesses may need additional city licenses or endorsements depending on where they are physically located or where they conduct business. A state business license does not automatically cover every local licensing requirement.
The Washington Department of Revenue's Business Licensing Service (BLS) allows businesses to apply for city endorsements for more than 200 participating cities and towns. If your business operates in one of these cities, you can add the applicable city endorsement through My DOR.
Some cities use other systems. For example, FileLocal supports business licensing and tax filing for participating cities including Seattle, Bellevue, Tacoma, Renton, Everett, and others.
If you operate in a city that is not covered by BLS or FileLocal, you'll generally need to contact the city directly to determine its licensing requirements.
The key point: check the licensing requirements for every city where your business is physically located or where you perform business activities—not just the city where your business is registered.
Professional licenses
Some professions require separate regulatory licensing before you can legally operate. These are typically issued by specialized state agencies, not the general licensing office.
Examples include licenses for:
- Contractors
- Healthcare providers
- Accountants
- Architects
- Real estate brokers
These are issued by the Washington State Department of Licensing (DOL), the Department of Health (DOH), or the Department of Labor and Industries (L&I) depending on the profession — not through the BLS.
Industry-specific endorsements
These endorsements are processed through Washington's Business Licensing Service (BLS), although some require additional documentation or review by the relevant regulatory agency. For example, liquor endorsements are issued through the Washington State Department of Revenue's Business Licensing Service, with licensing requirements and fees administered by the Washington State Liquor and Cannabis Board (LCB).
Processing times vary by endorsement and may depend on the documentation, regulatory review, and other requirements involved. Check the relevant agency for current processing timelines before applying.
Representative costs include:
- Tobacco Products Retailer endorsement: USD $175 per location.
- Liquor licenses: Fees vary considerably by license type. For example, a Restaurant Beer/Wine license is USD $600, while a Spirits Retailer license is USD $550.
- Transportation Network Company (TNC) license: USD $5,000 for the initial license and USD $5,000 for renewal.
Depending on the industry and business activities, you may also need additional federal, state, or local permits, licenses, or approvals. Check the requirements for your specific business before applying.
Sales tax registration in Washington state
Washington sales tax registration is handled through the state's Business Licensing Service (BLS). When you apply for or update your Washington business license, you can register for the state tax account as part of the process. There is no separate registration fee for the state tax registration itself.
Whether you need to collect sales tax depends on what you sell and where your business has sales tax obligations. Washington has also expanded its retail sales tax to cover certain services, so businesses should check the current Department of Revenue rules for their specific activities.
Washington B&O tax
Washington does not impose a personal or corporate income tax. Instead, most businesses are subject to the Business and Occupation (B&O) tax, which is generally calculated on gross receipts rather than net profit. The applicable rate depends on the business activity and B&O tax classification.
For the Service and Other Activities classification, Washington introduced tiered rates effective October 1, 2025:
- 1.5% for businesses with less than USD $1 million in prior-year taxable income
- 1.75% for USD $1 million to less than $5 million
- 2.1% for USD $5 million or more
Other B&O classifications have different rates. For example, the Retailing classification is currently 0.471%, while Wholesaling and Manufacturing are generally 0.484%.
Local permits you need in Washington state
Depending on your physical operations, you may also need permits related to:
- Building occupancy
- Zoning compliance
- Health inspections
- Fire safety regulations
These come from city or county governments, not from the state BLS. For example, a restaurant founder in Seattle may need the state business license, a Seattle Business License Tax Certificate, a King County food establishment permit, and a fire inspection clearance from four separate filings with four separate agencies.
If you have a physical location, check zoning compliance before signing a lease — not after. Local zoning rules determine whether your business activity is permitted at that address, and discovering a zoning conflict after you've committed to a space is an expensive problem.
Washington business license costs
Here's what you should realistically budget for licensing in Washington, broken down clearly:
Common mistakes founders make
1. Not checking city endorsement requirements
The state license doesn't automatically cover city-level requirements. Many founders complete the state application, assume they're done, and then discover months later that their city requires a separate license. Check before you launch.
2. Starting operations before the license is approved
Washington doesn't offer a provisional operating period. Operating before your license is issued exposes you to fines and enforcement action from the DOR. The 10-business-day processing window is short enough that it's worth waiting.
3. Treating the B&O tax like income tax
Washington's Business and Occupation tax is calculated on gross revenue, not profit. Founders who model their tax liability as a percentage of net income consistently underestimate their actual tax burden. Run your B&O calculations on revenue from day one.
4. Forgetting professional license timelines
If your business requires a professional license in addition to the state business license, the professional license often takes longer and has prerequisites (exams, background checks, continuing education). Founders who apply for both simultaneously frequently find that the state license is approved in 10 days but the professional license takes 6 weeks — and they can't legally operate until both are in place.
5. Letting the business license lapse
Washington licenses expire annually. If you miss renewal, the late penalty is 50% of your endorsement fees, up to USD $150. After 120 days, the state can dissolve your license. Reinstatement is more expensive and more complex than renewal. Set a calendar reminder for 30 days before expiration.
6. Skipping the Business Licensing Wizard
The DOR's Business Licensing Wizard takes about 5 minutes and tells you exactly which licenses and endorsements apply to your business. Founders who skip it often miss endorsements they were required to have.
7. Using the wrong business address
The address on your business license affects which city endorsements are required and where tax obligations sit. If you work from home and list a registered agent's address instead, the system may not correctly calculate your local licensing requirements.
How Aspire helps Washington businesses manage finances
Getting your Washington business license is just the first step. Once you're up and running, you'll need a business account to separate personal and business finances, pay suppliers, receive customer payments, and keep your bookkeeping organized.
For founders with cross-border operations, managing multiple currencies and international payments can quickly become another administrative task. Aspire1 is a financial platform that lets you create business accounts to hold and transfer funds across currencies*. This makes it easier to manage day-to-day finances as your business grows.
Instead of stitching together separate tools for banking and payments, founders can manage their business finances through one account while keeping operations streamlined from day one.
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