What counts as doing business in Washington

The statute answers what does not count

Washington's line for an out-of-state LLC is drawn by exclusion. RCW 23.95.505 says a foreign entity may not do business in the state until it registers, and RCW 23.95.520 lists the activities that do not constitute doing business under that chapter.

The Secretary of State will not run the test for you. The office states plainly that it cannot evaluate whether a business's activities qualify as doing business in Washington, and points to the statute for the activities the law excludes.

So the honest method is the statute in one hand and your own facts in the other. The list below is not everything, because the statute says it includes but is not limited to, but it is the part that decides most expansion questions.

RCW 23.95.505RCW 23.95.505 states that a foreign entity may not do business in Washington until it registers with the Secretary of State under chapter 23.95 RCW. — Washington State Legislature, Revised Code of Washington, retrieved 2026-09-29

RCW 23.95.520The Washington Secretary of State states it cannot evaluate whether a business's activities qualify as doing business in Washington, and points to RCW 23.95.520. — Washington Secretary of State, retrieved 2026-09-29

The isolated job that finishes in thirty days

The carve-out most expansions turn on is the isolated transaction. Conducting an isolated transaction that is completed within thirty days, and that is not in the course of repeated transactions of a like nature, is not doing business under the chapter.

One wiring job in Vancouver in one month is not the course of repeated transactions. The same job every other month, for the same customer or different ones, is exactly that course, and the carve-out was never built to cover a schedule.

Read the two conditions together, because they carry equal weight. A large one-off contract that runs six weeks is not completed within thirty days, so it is doing business from the start no matter how isolated it feels.

thirty daysRCW 23.95.520(1)(i) lists an isolated transaction completed within thirty days, not in the course of repeated transactions of a like nature, as not doing business. — Washington State Legislature, Revised Code of Washington, retrieved 2026-09-29

A remote Washington employee is not doing business

The most surprising entry on the list is the newest one. Employing a remote worker who resides in Washington state does not, by itself, constitute doing business under the chapter.

That flips the intuition of most LLC owners from other states, where hiring an employee in a state is the classic trigger for registering there. In Washington, the employee working from a Spokane kitchen table on an Idaho LLC's payroll does not force the Foreign Registration Statement.

Read the limits before acting on it. The carve-out is under the corporate-registration chapter only, and the statute's closing subsection says the whole list does not apply in determining the contacts or activities that may subject a foreign entity to service of process, taxation, or regulation under other law. The tax consequences of a Washington employee are a separate question, on the B&O page.

RCW 23.95.520(1)(m)RCW 23.95.520(1)(m) lists employing a remote worker who resides in Washington state among the activities that do not constitute doing business in Washington under chapter 23.95 RCW. — Washington State Legislature, Revised Code of Washington, retrieved 2026-09-29

RCW 23.95.520(4)RCW 23.95.520(4) states that the section does not apply in determining contacts that may subject a foreign entity to service of process, taxation, or regulation. — Washington State Legislature, Revised Code of Washington, retrieved 2026-09-29

Selling into Washington without performing here

The list protects businesses whose Washington presence stays on the paper side. Selling through independent contractors is not doing business. So is soliciting or obtaining orders where the orders require acceptance outside Washington before becoming binding contracts, and the contracts involve no local performance other than delivery and installation.

Owning property, without more, is on the list too. So are maintaining bank accounts, collecting debts, creating mortgages, defending or settling lawsuits, and holding meetings of your own interest holders or governors.

Notice what all of these share: nothing is being done to Washington customers or Washington real estate beyond delivery. The moment a crew shows up to build, clean, cut, or style, the paper-side protections stop applying, which is where the trade pages pick the question up.

RCW 23.95.520(1)RCW 23.95.520(1) lists selling through independent contractors, orders accepted outside the state, and owning, without more, property as not doing business. — Washington State Legislature, Revised Code of Washington, retrieved 2026-09-29

Interstate commerce is on the list, and it is narrower than it reads

Doing business in interstate commerce is also listed as not constituting doing business. That entry protects a truck passing through, not a truck doing pickups in Seattle every Tuesday.

The distinction is not in the words alone; it is in the whole statute. The list exists to exempt activity that other law reaches differently, and its closing subsection hands service of process, taxation, and regulation to the other chapters. A mover running loads into and around Washington learns the boundary from the Utilities and Transportation Commission, on the movers page, not from the exemption.

Treat the interstate entry as the one that needs the most caution. Federal authority over interstate movement does not stop a state from calling repeated in-state pickup and delivery doing business, and Washington's regulators read the facts of routes, not the sign on the truck.

RCW 23.95.520(1)(k)RCW 23.95.520(1)(k) lists doing business in interstate commerce among the activities that do not constitute doing business in Washington under chapter 23.95 RCW. — Washington State Legislature, Revised Code of Washington, retrieved 2026-09-29

What an unregistered LLC actually loses

The penalty statute is narrower than the fear. A foreign entity doing business in Washington without registering may not maintain an action or proceeding in a Washington court until it registers and pays the state all fees and penalties for the years it worked unregistered.

That is a plaintiff's problem, and it is serious: the unregistered LLC cannot sue a Washington customer who does not pay. The statute also makes the successor and the assignee of the claim subject to the same bar, so the claim cannot be laundered around it.

What the lapse does not do is equally specific. Failure to register does not impair the validity of the LLC's contracts, does not impair the other party's right to sue on the contract, and does not preclude the LLC from defending an action. The contracts hold; the courthouse door is what closes.

RCW 23.95.505(2)RCW 23.95.505(2) bars a foreign entity doing business in Washington from maintaining an action or proceeding until it registers and pays all fees and penalties. — Washington State Legislature, Revised Code of Washington, retrieved 2026-09-29

RCW 23.95.505(6)RCW 23.95.505(6) provides that failure to register does not impair the validity of the entity's contracts, or preclude it from defending an action. — Washington State Legislature, Revised Code of Washington, retrieved 2026-09-29

The tax line moves independently of this list

The doing-business list governs the corporate registration question only. It does not decide whether the LLC owes Washington tax, because the statute hands taxation to other law.

Washington's tax nexus has its own threshold: an out-of-state business entity has substantial nexus with Washington on more than one hundred thousand dollars of cumulative gross receipts from the state, or on physical presence that need only be demonstrably more than a slightest presence.

That second limb is the quiet one. Property in Washington, an employee in Washington, or an agent doing in-state activities significantly associated with establishing or maintaining a market is physical presence, which means an LLC can owe Washington business and occupation tax in a year it never once registered. The B&O page and the cost breakdown carry the numbers, and the registration guide is the filing that answers the rest.

$100,000RCW 82.04.067 deems an out-of-state business entity to have substantial nexus with Washington on over $100,000 of cumulative gross receipts, or physical presence. — Washington State Legislature, Revised Code of Washington, retrieved 2026-09-29

Questions