Who Needs to Be Licensed in Washington State?

If you do business in Washington, you almost certainly need a license. The state requires a business license from anyone who sells taxable goods, hires employees, uses a name other than their legal name, operates under a city or state endorsement, owes taxes to the Department of Revenue, or earns $12,000 or more in gross annual income.¹ Many people need more than that: a separate entity registration, a city endorsement, a professional license, a contractor registration, or an industry-specific permit. Who needs a business license in Washington State is less a yes-or-no question than a layered one, and the layers depend on what you do, where you do it, and how your business is set up.

The Six Triggers for a State Business License

The Department of Revenue’s Business Licensing Service issues the state business license. You need one if any of these apply to you:¹

Your business needs city, county, or state endorsements.
You do business under a name different from your legal name.
You plan to hire employees within 90 days.
You sell a product or service that requires collecting sales tax.
Your gross income is $12,000 or more per year.
You owe taxes or fees to the Department of Revenue.

Working from home doesn’t change anything. The same triggers apply whether your office is a storefront, a job site, or your kitchen table.

Applying costs $50 in processing fees. Renewing each year costs $5 plus any endorsement fees, and missing the renewal deadline can bring a late penalty of up to $150.²

If You Form an LLC, Corporation, or Partnership

Forming a legal entity is a separate step, handled by the Secretary of State, and it comes before the business license and before applying for a federal EIN. A domestic or professional LLC costs $180 to form, and a foreign LLC registering to do business in Washington pays the same $180.³

Every for-profit entity then owes a $70 annual report fee. Miss the deadline and a $25 delinquency fee is added. Let it slide and the state can administratively dissolve the entity; reinstatement costs $140 plus every back annual report fee you missed.³ This obligation runs parallel to the business license renewal. Two different filings, two different due dates.

City and County Endorsements

A state license does not cover you locally. Many cities and counties require their own business license endorsements, and more than 200 cities have folded theirs into the Department of Revenue’s system, so you can apply and renew in the same place.⁴ Fees and rules vary by jurisdiction.

Check every city where you physically operate or travel to serve customers. Some cities also require a non-resident endorsement for businesses that pass through to do work.⁵

Professions That Need an Individual License

Dozens of professions require a personal license on top of any business license. No single agency handles all of them, which is where confusion starts.

The Department of Licensing covers more than 70 license types, including cosmetologists, barbers, estheticians, and manicurists;⁶ real estate brokers and firms;⁷ architects, geologists, and home inspectors; private investigators and security guards; bail bond agents; auctioneers; funeral directors; and sellers of travel.

The Department of Health licenses healthcare professionals: doctors, nurses, dentists, pharmacists, mental health counselors, and others.⁸

The Department of Labor & Industries handles construction trades, including general contractors, specialty contractors, electricians, and plumbers.⁹

Each profession sets its own prerequisites. Some require an exam, some require documented work experience under a licensed professional, and most require continuing education to stay current.

Contractors Have a Stricter Rule

Construction is the area where people most often get caught out. Every contractor must register with L&I before doing any work. Advertising or submitting a bid without being registered is itself illegal.¹⁰

Registration requires a surety bond: $30,000 for a general contractor, $15,000 for a specialty contractor. If you’ve had a final judgment against you involving residential work in the past five years, the state can require up to three times the normal bond.¹¹ Electrical, plumbing, elevator, mobile home installation, boiler, and asbestos-related trades face additional education, examination, and licensing requirements on top of registration.⁹

Hiring or subcontracting to an unregistered contractor is also a violation. The registered contractor who hires an unlicensed sub faces the same penalties as the sub.¹⁰

Industries With Their Own Specialty Licenses

Some businesses need a specialty license based on what they sell or who they serve, regardless of personal qualifications. These sit on top of the state business license.

Liquor, tobacco, cannabis, and vapor products. The Washington State Liquor and Cannabis Board issues separate licenses for retail and nonretail operations. Liquor licenses are also endorsed through the Department of Revenue’s system, which means dealing with both agencies.¹²¹³
Child care and early learning. The Department of Children, Youth, and Families licenses roughly 6,800 programs statewide, including centers and family home providers serving children from birth through age 12.¹⁴
Firearms dealers. Licensed through the Department of Licensing, with federal ATF requirements on top.
Food processors. Need Department of Health approvals for food handling in addition to the state business license.

A single business can land in two or three agencies at once. A restaurant that serves alcohol needs a business license from the Department of Revenue, a food handling permit from the Department of Health, and a retail liquor license from the Liquor and Cannabis Board.

Federal Pieces

Washington licensing often sits alongside federal requirements. The most common is an Employer Identification Number from the IRS. You need one if you hire employees, operate as a partnership or corporation, pay excise taxes, or change your business structure.¹⁵ The IRS recommends forming your entity with the state before applying for an EIN, since doing it out of order can delay the application.

Beneficial Ownership Information reporting to FinCEN raised a lot of concern when it launched, but as of 2025 all entities formed in the United States are exempt. Only foreign-formed entities registered to do business in a U.S. state still have to file.¹⁶

How to Confirm What Applies to You

The Department of Revenue runs a Business Licensing Wizard. You answer questions about your activity, location, and structure, and it returns a tailored list of federal, state, and local requirements with agency contacts and application links.¹ From there, the Department of Licensing, Department of Health, and L&I each publish full requirements for the professions they oversee. The wizard first, then the relevant agency, is a more reliable path than relying on what another business in your field says it holds.

What Happens if You Skip It

Washington treats unlicensed activity seriously, and the penalties escalate quickly. For professions covered under the state’s Uniform Disciplinary Act, a single instance of unlicensed practice is a gross misdemeanor. Each subsequent violation jumps to a class C felony, whether charged in the same case or a later one.¹⁷

Unregistered contractors face a layered system. L&I can issue an infraction with a fine between $1,200 and $10,000. If it’s a first offense and the contractor registers within 10 days, the fine can be reduced to as low as $600.¹⁸ Contractor work done without registration is also a gross misdemeanor on its own. Keep working after a citation and every additional day counts as a separate gross misdemeanor, with every worksite charged independently.¹⁰ Unlicensed electrical work carries its own schedule: $1,000 for a first offense, $2,000 for a second, and up to $10,000 for repeated violations, with the department able to double those amounts in serious cases.

The civil consequences often hurt more than the fines. An unregistered contractor may be unable to enforce a contract or sue a customer for nonpayment, because the courts can refuse to hear the claim. Homeowners can file claims against the contractor, but with no bond or insurance behind the work, personal assets are exposed. Commercial clients routinely check registration through L&I’s online lookup, so operating unlicensed also closes off most of the better jobs.

1
Washington Department of Revenue. Apply for a Business License
2
Washington Department of Revenue. Variable Business License Processing Fees
3
Washington Secretary of State. Limited Liability Company (LLC) and Professional LLC (PLLC) Filing Resource Page
4
Washington Department of Revenue. Business Licensing Service and Local Licensing
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Washington Department of Revenue. City Endorsements
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Washington State Department of Licensing. Cosmetology
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Washington State Department of Licensing. Real Estate Brokers
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Washington State Department of Health. Professions A to Z
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Washington State Department of Labor & Industries. Register as a Contractor
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Washington State Legislature. RCW 18.27.020 – Registration Required, Prohibited Acts, Criminal Penalties
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Washington State Legislature. RCW 18.27.040 – Bond or Other Security Required, Actions Against Bond
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Washington State Liquor and Cannabis Board. Washington State Liquor and Cannabis Board
13
Washington Department of Revenue. Liquor – Retail and Nonretail
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Washington State Department of Children, Youth, and Families. Become a Licensed Child Care and Early Learning Provider
15
Internal Revenue Service. Get an Employer Identification Number
16
Financial Crimes Enforcement Network. Beneficial Ownership Information Reporting
17
Washington State Legislature. RCW 18.130.190 – Practice Without License, Investigation, Penalties
18
Washington State Legislature. Chapter 18.27 RCW – Registration of Contractors