Starting a cleaning business in Washington: the licence, the L&I account and the insurance
Most guides to this get the fee wrong and add a registration you do not need. Here is what Washington actually charges, in the order you actually do it, from the agencies that actually charge it.
The short answer
Opening a business in Washington and getting your UBI costs $50, with a $5 annual renewal. That single filing registers you with the Department of Revenue, Employment Security and Labor & Industries at once. Add city endorsements for each municipality you plan to work in.
There is no cleaning-specific state licence, and a cleaning business is not a contractor. Contractor registration with its bond and liability requirements applies to construction and improvement work, not to a service business — so that is a step you can skip entirely.
Workers' compensation becomes mandatory with your first employee, comes only from the state, and for janitorial work is risk class 6602 at $1.6799 per hour worked in 2026. General liability is not legally required, but it is what your first commercial client will ask to see.
Washington State Department of Revenue — Business license processing fees
Washington State Department of Revenue — Business license processing fees
Washington State Department of Revenue — Business license processing fees
Independent agency · commercial lines across Washington
What Washington actually charges
The number repeated across guides to this trade is $90. The Department of Revenue's published fee schedule says something different, and it is worth having the real figures because they change how you budget the first month — and because getting fees wrong is a sign a guide has not checked anything else either.
| Filing | Fee |
|---|---|
| Open or reopen a business (new UBI, no active locations) | $50 |
| Add an additional location to an existing business | $0 |
| City non-resident business endorsement added to an existing location | $0 |
| Other filings — hiring employees, registering a trade name | $10 |
| Annual renewal of a location, any number of endorsements | $5 |
| Late renewal penalty | half the endorsement fee, up to $150 |
All application fees are non-refundable
Which matters mainly because it rewards getting the filing right the first time. Decide your legal structure and your trade name before you file rather than filing twice, and check whether you actually need a separate trade name at all.
The order of operations
Sequence matters here because each step needs the one before it. You cannot open an L&I account without a UBI, and no carrier will write a commercial policy for a business that does not legally exist yet. Four steps, in this order.
- File the Business License Application with the Department of Revenue. This issues your UBI and registers you with Revenue, Employment Security and L&I in one filing.
- Add the city endorsements for the municipalities you will work in. Seattle, Tacoma, Spokane and Bellevue license separately from the state.
- Open the L&I account before your first employee's first hour, and confirm your risk class.
- Buy general liability before you bid on anything commercial, because the certificate is a precondition and not a formality.
Why the UBI is the number that matters
It is how the state identifies you across three agencies and how a property manager or a cautious client will look you up. Having it current and having the licence renewed for $5 a year is the cheapest credibility available to a business this size.
What you do not need
Contractor registration. This is the most common piece of wasted effort in the trade, because the word cleaning sits near construction in people's minds. Contractor registration with L&I — with its bond and its required liability policy — applies to construction and improvement work, not to a service business.
Where the confusion comes from
If you add work that is construction or improvement — remodelling, installation, restoration after damage — the answer changes and registration may apply. Cleaning as cleaning does not require it. If you are unsure which side a service falls on, ask before you advertise it.
Offices in Tacoma and Auburn · Serving all of Washington · English and Spanish
The L&I account
Washington is one of a small number of states where workers' compensation is sold only by the state. There is no private market and no agency can sell it to you. It becomes mandatory with your first W-2 employee, and it is charged as a rate per hour worked rather than as a premium on payroll.
What janitorial work costs
Risk class 6602 covers janitorial services and pest control, and for 2026 the rate is $1.6799 per hour worked, up 4% from $1.6098. Over a full-time year that is roughly $3,490 per cleaner, and about $759 of it is the worker's share, which Washington lets you withhold.
Get the class right before the first report
L&I publishes a lookup for risk classes, and a wrong class is a wrong rate applied to every hour your crew works. Our workers' compensation page covers how the account and the reporting work — and we will help with it even though we earn nothing from it.
When to buy insurance
Before the first job you actually want. General liability is not a legal requirement for a cleaning business, which is why so many start without it — and it is what a client is asking about when they ask whether you are insured. The order matters more than the timing.
The two mistakes at this stage
Buying the whole stack on day one, when a solo residential cleaner really needs liability and nothing else yet. Or buying nothing until a property manager asks, which means losing that bid while you scramble. Buy liability early and add the rest as the business grows into it.
What the stack looks like as you grow
The four products and when each becomes necessary covers the sequence. If you are aiming at commercial work from the start, read what a property manager will ask for before you bid.
City endorsements
Washington cities license separately from the state, and the endorsement is added to the same application rather than filed somewhere else. Adding a city non-resident endorsement to an existing location is free, which means there is no financial reason to work in a city you are not endorsed for.
Which ones to add
The ones you will actually work in, plus the neighbouring ones you would say yes to. If your service area is the South Sound, that is a different list than if it is Eastern Washington. We write across the whole state from Tacoma and Auburn — business insurance, a free quote, or just ask us.
Frequently asked questions
How much does it cost to start a cleaning business in Washington?
The state paperwork is $50 to open a business and get a UBI, and $5 a year to renew. Adding a trade name or registering to hire employees is $10. Many guides quote $90 for the licence application; the Department of Revenue's own fee schedule says $50 for opening a business.
Do I need a special licence to clean houses in Washington?
No cleaning-specific state licence exists. You need the Washington state business licence, which issues your UBI, plus any city endorsements for the municipalities you work in — Seattle, Tacoma, Spokane and Bellevue all license separately.
Is a cleaning business a contractor in Washington?
No, and this is the step people add unnecessarily. Contractor registration with L&I, with its bond and liability requirements, covers construction and improvement work. Cleaning is a service business, so that registration does not apply.
When do I have to open an L&I account?
Before your first employee's first hour. Workers' compensation is mandatory in Washington from the first W-2 employee, it comes only from the state, and janitorial work is risk class 6602 — $1.6799 per hour worked in 2026.
What is a UBI and why does everyone ask for it?
The Unified Business Identifier, a nine-digit number issued when you file the business licence application. One filing registers you with Revenue, Employment Security and L&I at once, and it is the number a property manager or a client will look you up by.
Do I need insurance before my first client?
Not legally, but practically yes. General liability is what a client asks for when they ask whether you are insured, and it is what covers the first thing you break. Buying it after losing a bid over it is the expensive order to do this in.
Keep reading
Sources
- Washington State Department of Revenue — Business license processing fees (the $50, $10, $5 and $150 figures).
- Washington State Department of Revenue — Business licensing and renewals FAQs.
- Washington State Department of Labor & Industries — 2026 workers' compensation rates by business type and class code.
- Washington State Department of Labor & Industries — Risk class lookup.
This article is general information about insurance in the state of Washington. It is not legal advice and it is not an offer of coverage. Whether a policy covers a given loss depends on its own wording, its endorsements and its exclusions; read yours, or send it to us and we will read it with you. Anel Galicia is a licensed insurance producer in the state of Washington.