Cleaning service licenses
in Seattle, Washington
Start with the main licenses and permits below. For a checklist based on your own business, tell us what you’re opening and how it will operate.
Researched Sep 2026
About this example
The business is a home-based cleaning service located in Seattle, Washington, that employs W-2 workers and utilizes commercial vehicles. It primarily offers cleaning services and does not engage in food or alcohol sales.
Requirement labels below refer to this setup. Conditional items depend on additional details.
Authorities researched
- Federal
- Federal Government
- State
- Washington State
- County
- King County
- City
- City of Seattle
Details to confirm before you apply
- What is the exact weight threshold for FMCSA registration?
- Will any of the cleaning products used be classified as pesticides requiring WSDA licensing?
- What specific services will be offered that might affect B&O tax classification?
- Are there any additional local zoning restrictions for the home-based business?
- What is the current fee for the annual renewal of the Washington State Business License?
- How will the business ensure compliance with the home occupation standards?
The main licenses and permits
6 of 20- 01Washington State Business License (UBI registration)Washington Department of Revenue (DOR), Business Licensing Service · Washington
Registration is required because the business plans to hire employees within 90 days, expects gross income of $12,000 or more per year, and must pay B&O tax.
RequiredAnnual renewal - 02Seattle Business License Tax Certificate (general business license)City of Seattle — Finance and Administrative Services · Seattle
Anyone doing business in Seattle must hold a Seattle business license tax certificate, and this cleaning service operates from a Seattle home and serves Seattle customers.
RequiredAnnual; all certificates expire Dec. 31 and must be renewed each year by Dec. 31. - 03Home Business Rules (home occupation standards)Seattle Department of Construction and Inspections (SDCI) · Seattle
The business operates from a Seattle home, so the home occupation rules govern where and how the business may run at the residence.
RequiredNot applicable - 04Business entity formation (LLC) with Secretary of StateWashington Secretary of State (SOS) · Washington
A cleaning service with employees should operate as a formal entity; if an LLC is chosen, it must be formed with SOS before applying for the state business license.
RequiredAnnual Report due yearly by the entity's expiration date (last day of the month of formation) - 05Business & Occupation (B&O) tax — service and other activitiesWashington Department of Revenue (DOR) · Washington
Income from janitorial/cleaning services is subject to the service and other activities B&O tax (a gross receipts tax).
RequiredMonthly or quarterly filing, depending on tax liability - 06Seattle Business License Tax (Seattle B&O / gross receipts tax) — registration and filingCity of Seattle — City Finance · Seattle
Seattle imposes a B&O tax on gross income earned in the city; every business in Seattle must file a business license tax return and report annual gross revenue even if no tax is owed.
RequiredAnnual filing (April 30) or quarterly depending on assigned reporting status.
This example includes 14 other potential requirements. A report based on your business explains which apply, how to file, published fees and timing, and what to complete first.
Make the checklist yours
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Not required for this example
- King County environmental health / public health permit — This business does not prepare or serve food and is not a regulated facility, so the county health department's permit programs do not cover a cleaning service.
- King County General Business License — King County explicitly states that it does not require a general business license. Its separate regulated-activity business licenses apply within unincorporated King County; the stated business is within Seattle.
- King County fire marshal permit and building occupancy permit — The business has no commercial storefront or office — only a home base — so no fire or building occupancy permits attach to a commercial occupancy.
- Certificate of Occupancy / change-of-use permit — A certificate of occupancy or change-of-use permit is tied to commercial space; this business has no commercial storefront or office.
Questions people ask
What city business licenses or registrations should a cleaning service in Seattle check?
Our research identifies Seattle Business License Tax Certificate (general business license), issued by City of Seattle — Finance and Administrative Services, as required. Anyone doing business in Seattle must hold a Seattle business license tax certificate, and this cleaning service operates from a Seattle home and serves Seattle customers. Check the other city permits in this guide and confirm the requirements for your premises and activities.
How much do licenses and permits cost for a cleaning service in Seattle?
About $253 in published fixed fees, plus variable fees. Several items have fees that depend on your entity type, square footage, or payroll, so the full report lists each fee as the agency publishes it.
What should I do first?
Review Employer Identification Number (EIN) (Internal Revenue Service (IRS)), then Federal employment tax withholding, deposit, and reporting (Internal Revenue Service (IRS)), then Form I-9 Employment Eligibility Verification (U.S. Citizenship and Immigration Services (USCIS)). Confirm each item's applicability and prerequisites before applying; the report provides a suggested order for the full checklist.
Is this legal advice?
No. It is a research summary of public requirements published by government agencies, each linked to its official page. Confirm with the issuing agency before filing.
Related guides
Researched from official government sources on September 2, 2026 for a typical cleaning service. Requirements change and depend on your facts; this page is not legal advice. Confirm with the issuing agency before filing.