Washington Business License: What You Need and How to Get It

A Washington business license, formally called a Unified Business Identifier (UBI) registration, is your gateway to legal operation in the state. Whether you're starting an LLC, running a sole proprietorship, or expanding an existing business into Washington, you'll need to understand what the state requires and how to file.

Washington doesn't call it a "license" in the traditional sense. Instead, the state runs a unified business registration system through the Department of Revenue. This single filing covers most of what you need to legally operate, though some businesses need additional endorsements from specific agencies.

What You Need to Prepare Before You Start

Basic Information Required

• Business legal name and structure. Confirm with the Washington Secretary of State that your name is available and distinguishable from all others on record. Use the Washington Secretary of State business search before you file anything. If you're forming an LLC or corporation, file your formation document first (Certificate of Formation or Articles of Incorporation) before the business license application.
• Business address. A physical street address in Washington State. A PO Box alone won't work as your business address, though you can list a PO Box for mail in addition to the street address.
• Your Social Security number or federal employer identification number (EIN). Sole proprietors typically use their SSN. Partnerships, corporations, and LLCs usually need an EIN from the IRS (apply at irs.gov, no fee).
• Ownership and management details. Names, titles, and SSNs or EINs for all owners and managers.
• Industry classification code. The Department of Revenue uses NAICS codes to classify your business type. Have a clear description of what your business does.
• Estimated gross income. For 2024, you'll report expected annual gross receipts. This helps determine which of Washington's business and occupation (B&O) tax classifications applies to you.
• Specific endorsement requirements (if applicable). Some businesses need permits from other state agencies. Your business license application will flag if you need them.

Identify Your Business Structure

Before applying for your business license, confirm your structure. Washington recognizes sole proprietorships, partnerships, corporations, LLCs, and LLPs. If you're forming a business entity (LLC or corporation), file with the Washington Secretary of State first, then apply for your business license. The Secretary of State filing fee is $180 for an LLC or corporation.

Check for Special Endorsement Requirements

Some industries need additional approval before their business license issues. These include alcohol licenses, food service permits, health professions, and certain other regulated sectors. The Department of Revenue will tell you during the application process if your business requires any.

Step-by-Step: How to Get Your Washington Business License

Step 1: Form Your Business Entity (If Applicable)

If you're operating as a sole proprietor or partnership using your own name, skip this step.

If you're forming an LLC or corporation, file your formation document with the Washington Secretary of State first. Visit Corporations and Charities Filing System (CCFS) and select "File Online." Upload your Certificate of Formation (for an LLC) or Articles of Incorporation (for a corporation). The state filing fee is $180. Standard processing takes roughly 2 to 5 business days, though the Secretary of State does not publish a guaranteed turnaround time. Expedited service is available for an additional $100, generally processed within three business days.

Keep your filing confirmation number. You'll need it when you apply for your business license.

Step 2: Check Your Business Name Availability

Use the Secretary of State business search to confirm your name is available and distinguishable from existing businesses. "Distinguishable" means it must not be so similar to another registered name that it could cause confusion. The Department of Revenue will also check this when you apply for your license.

Step 3: Gather Required Information and Documents

Compile the list from "What You Need to Prepare" above. Have your SSN or EIN, business address, ownership information, and industry classification ready. If you formed an LLC or corporation, have your state filing confirmation number available.

Step 4: Apply for Your Business License Online

Go to the Washington Department of Revenue's Business License Application page. You can apply online, by mail, or in person.

Online (recommended): The online portal is faster and requires no mailing time. Fill in all required fields, upload any supporting documents, and submit. Online applications typically take about 10 business days to process. Pay the $50 application processing fee by credit or debit card at checkout.

By mail: Download the paper Business License Application form, complete it, and mail it to the Department of Revenue with your $50 fee. Mailed applications can take up to six weeks.

In person: You can also apply at your local Department of Revenue office, though processing times are similar to mailed applications.

Step 5: Add Required City, County, and Industry Endorsements

Many cities and counties charge additional endorsement fees on top of the state $50. These vary by location. The Department of Revenue will collect these fees as part of the same application. If your business falls under a regulated industry (food service, health professions, etc.), you may need additional state endorsements, which also carry separate fees.

Once approved, the Department of Revenue issues your Unified Business Identifier (UBI), a 9-digit number that identifies your business to all state and local tax authorities. You'll receive this by email or mail, depending on how you applied.

Expected Timeline and Results

Online applications are usually processed within 10 business days. You'll receive your UBI and registration certificate via email. Some endorsements may take longer to approve, particularly if they require another agency's sign-off.

Once you have your UBI, you can legally operate your Washington business, collect sales tax, and meet your tax obligations to the state.

Key Points and Tips to Avoid Mistakes

Formation Must Come Before Licensing

If you're forming an LLC or corporation, file with the Secretary of State before you apply for your business license. The two are separate processes. Many new business owners file them together assuming it's one step, but the Secretary of State issues your business entity first, and then the Department of Revenue registers it for tax purposes.

B&O Tax Is Not Optional

Washington has no corporate income tax or personal income tax. Instead, nearly every business pays Washington's business and occupation (B&O) tax, a gross receipts tax based on your industry classification. Your business license application will assign you a B&O classification. Common classifications include Retailing (wholesaling goods), Services and Activities (consulting, services), Wholesaling, Manufacturing, and Printing. Different classifications have different tax rates. Understanding your classification now prevents surprises at tax time.

City B&O Taxes Stack On Top

Many Washington cities also charge a local B&O tax, separate from the state tax. Check with your city before you start, because local B&O rates vary widely. Some cities charge 0.15 percent of gross receipts, while others charge more. This is a local filing, not a state one, and the Department of Revenue does not administer it.

Sales Tax Permit Comes With Your License

If you sell taxable goods or services, your business license automatically authorizes you to collect sales tax. Washington's state sales tax rate is 6.5 percent, but cities and counties add to this, so your local rate may be higher. You are responsible for collecting, tracking, and remitting sales tax on all taxable sales. Exemptions exist for certain items and industries, but most retail and service businesses are taxable.

Use Your Exact Legal Name

Register your business under the exact legal name you'll use for contracts and tax filings. If you do business under a different name (called a "trade name" or "DBA"), you must register it separately with the Department of Revenue's Trade Name Registration. A trade name registration costs $5 plus the $50 application fee (or $10 if you're adding a trade name to an existing business).

Address Your Registered Agent Requirement

If you formed an LLC or corporation, you must designate a registered agent in Washington State under RCW 23.95.415. This person or entity must have a physical street address in Washington (no PO Boxes). The agent receives official notices on behalf of your business. You can serve as your own agent, or hire a commercial registered agent service. There is no state fee to designate or change your registered agent, though commercial services charge annual fees, typically $100 to $300 per year.

Common Mistakes to Avoid

• Skipping the Secretary of State filing. Many new business owners try to go straight to the Department of Revenue without forming their entity first. If you're an LLC or corporation, file with the Secretary of State first.
• Using a PO Box as your business address. The Department of Revenue requires a physical street address. A PO Box alone will not be accepted, though you can add one for additional mail delivery.
• Forgetting local B&O taxes. You may be on the hook for city or county B&O tax in addition to state tax. Check your local jurisdiction before you launch.
• Assuming your business license covers everything. Your business license is a state registration for tax purposes. Some regulated industries (food service, alcohol, health care) need additional permits from state agencies or local health departments. Do not assume your business license is your only approval step.
• Registering a trade name but not filing a formal entity. If you file only a trade name with the Department of Revenue but never form an LLC or corporation, you are a sole proprietor or general partnership, and you have personal liability for your business debts. Form an LLC or corporation if you want liability protection.

Next Steps After You Receive Your UBI

Once you have your Unified Business Identifier, you can operate legally. However, several other steps may apply depending on your business:

• Open a business bank account (bring your UBI and formation documents).
• Apply for an EIN with the IRS if you haven't already (if you're an LLC, corporation, or partnership).
• Register for state employment tax if you plan to hire employees.
• Set up city or county permits or licenses if your industry requires them.
• Consult a CPA about your tax obligations under the B&O tax and any federal requirements.

Resources and Support

Washington Secretary of State (Corporations and Charities Division): https://www.sos.wa.gov/corporations-charities

Washington Department of Revenue (Business Licensing): https://dor.wa.gov/

Washington Small Business Development Center (SBDC): https://wsbdc.org/ offers free consulting and training for new and growing businesses.

SBA District Office (Seattle): https://www.sba.gov/district/seattle

Final Note: This Is Informational Content

This article provides informational guidance about Washington business license requirements and processes based on current state law. It is not legal or tax advice. Business formation laws change, and your specific situation may have unique requirements or exemptions. Before you file any documents or make irrevocable business decisions, consult a qualified attorney licensed to practice in Washington and a CPA familiar with Washington's B&O tax system. Both can help you structure your business correctly and avoid costly mistakes.