If you own rental property in Washington state, your most urgent question when you discover an unauthorized occupant is usually simple: how do I get this person off my property? The good news is that Washington law gives you clear tools to do exactly that. The less welcome news is that you need to follow a specific legal process, and ignoring it can make removal harder, not easier.
That process exists because Washington, like every state, recognizes a legal doctrine called adverse possession, sometimes called "squatters' rights." Under this doctrine, someone who occupies your property without permission can, under very specific circumstances, eventually claim legal ownership. It sounds alarming, but the bar is genuinely high, and understanding the rules helps you stay well ahead of any real risk.
One more thing before we get into the details: protecting your investment with landlord insurance in Washington is a smart baseline, especially if you own vacant properties that are more vulnerable to unauthorized entry.
Washington squatters' rights: the basics
In Washington, a squatter is someone occupying property without the owner's permission. That's distinct from a tenant, who has a lease or rental agreement. If a tenant stays past their lease without your consent, they may eventually fall into squatter territory, but they're still subject to landlord-tenant law first.
Adverse possession is the legal mechanism that could theoretically let a squatter claim title to your property. To make that claim stick in Washington, the squatter must prove all of the following:
- Actual possession: they physically occupy and use the property
- Open and notorious possession: the occupation is visible and obvious, not hidden
- Exclusive possession: they're not sharing the property with the owner or the general public
- Hostile possession: they occupy without the owner's permission
- Continuous possession for the full statutory period
- Payment of property taxes throughout that period
Every single element must be present. Miss one, and the claim fails.
How long does adverse possession take in Washington?
Washington requires 10 years of continuous occupation before a squatter can file an adverse possession claim. That's a long time, and it's not passive. The squatter must also pay property taxes on your property for that entire decade. In practice, most squatters don't do this, which is one reason successful adverse possession claims against active property owners are genuinely rare.
The property taxes requirement is worth emphasizing. It isn't optional. A squatter who occupies your land for 10 years but never pays taxes on it cannot complete a valid claim under Washington law.
Squatters' rights after 30 days: separating myth from reality
You've probably seen the claim online that squatters get rights after 30 days in Washington. It's not true. This myth likely originates from confusion between eviction timelines and adverse possession law. Thirty days is relevant to some tenant notice requirements, but it has nothing to do with ownership claims.
A squatter doesn't gain any ownership rights after 30 days, 90 days, or even a year. Washington squatters' rights under adverse possession require a full 10 years of continuous, open, exclusive, hostile, tax-paying occupation. That's the legal reality.
That said, even though a month-old squatter has no ownership claim, the longer someone occupies your property, the more complicated removal can become from a procedural standpoint. Act quickly.
Squatters vs. trespassers: why the distinction matters
Washington law treats squatters and trespassers differently, and that difference affects how you respond.
A trespasser enters property without permission and has no stated intention of staying. Trespassing is a criminal offense in Washington, and police can remove a trespasser immediately, particularly when "no trespassing" signs are posted. If you discover someone on your property who just wandered in, call the police.
A squatter, on the other hand, has typically been on the property long enough to assert some form of occupancy. Once someone claims squatter status, even without any legal basis, removal shifts from a criminal matter to a civil one. You'll need to go through the eviction process rather than simply calling for a trespass removal.
The distinction isn't always clean, but it's important to know which situation you're dealing with before you act.
How to remove squatters in Washington
Washington's eviction process applies to squatters just as it does to non-paying tenants. You can't physically remove someone yourself, change the locks while they're present, or shut off utilities to force them out. Doing any of these things exposes you to legal liability. Follow the legal path instead.
Here's how the process works:
- Serve a written notice to vacate. This formally demands the squatter leave the property. The notice period depends on the circumstances, but the notice must be in writing and properly served.
- File an unlawful detainer lawsuit if the squatter doesn't leave. This is a civil court action asking the court to order removal.
- Attend the court hearing. The court will evaluate whether the squatter has any legal right to remain. If they don't, the court issues a removal order.
- Coordinate with the sheriff. If the squatter still refuses to leave after a court order, the sheriff's office handles the physical removal. You don't do it yourself.
Throughout this process, document everything. Photos, a written log of dates and observations, any communications with the squatter, all of it can matter if the case ends up in front of a judge.
Preventing squatters before they become a problem
Vacant properties are the most common targets. A property that looks abandoned sends a signal that no one is paying attention, and that's exactly what squatters look for.
Some practical steps that reduce your risk:
- Inspect vacant properties regularly and on a varied schedule
- Secure all entry points with solid locks; board up broken windows or doors promptly
- Install cameras or an alarm system
- Keep the exterior maintained so the property doesn't look neglected
- Consider timed interior lights or other signs of activity for long-vacant properties
- Post "no trespassing" signs, which support a trespassing charge if police are called
Early detection is much cheaper than eviction. A squatter you catch on day one is a trespasser. A squatter you don't notice for six months is a civil case.
Property taxes and adverse possession claims
Washington's property tax requirement for adverse possession is one of the more protective provisions for property owners. The legal owner remains liable for property taxes regardless of who is occupying the property, so continued tax payment by the owner directly undermines any claim a squatter might try to build.
If a squatter does attempt to pay taxes on your property, that alone doesn't transfer any rights. It's one element among several, and paying taxes while failing to meet the other requirements, such as the full 10-year continuous period, is insufficient for a valid claim.
For squatters attempting to build an adverse possession case, paying property taxes shows the court they've taken on an ownership-like financial responsibility for the property. It doesn't guarantee success, but it's a required step in Washington.
Holdover tenants: a related situation
A holdover tenant, someone who stays in your rental after their lease expires without signing a new one, isn't the same as a squatter from a legal standpoint. Their situation falls under landlord-tenant law, and Washington's landlord-tenant statutes govern how you handle it.
A holdover tenant cannot claim adverse possession simply by staying put. Their occupancy is legally tracked from the start. You'll need to serve proper notice and follow the eviction process if they won't leave voluntarily, but you don't need to worry about a holdover tenant accumulating adverse possession rights through overstaying a lease.
Frequently asked questions
What is the adverse possession period in Washington?
Washington requires 10 years of continuous, open, exclusive, hostile occupation, plus payment of property taxes throughout that period, before a squatter can file an adverse possession claim.
Do squatters get rights after 30 days in Washington?
No. The 30-day figure is a myth. Thirty days may be relevant to some tenant notice requirements, but it doesn't grant any ownership or squatters' rights. Washington squatters' rights under adverse possession require 10 years of qualifying occupation.
How do I remove squatters in Washington?
Serve a written notice to vacate, then file an unlawful detainer lawsuit if the squatter doesn't leave. After a court order, the sheriff handles physical removal. Don't attempt self-help eviction; it can expose you to liability.
Can I call the police to remove a squatter?
If the person just entered the property and you have "no trespassing" signage, police may treat it as criminal trespassing and remove them. If the person has been there long enough to assert occupancy, it typically becomes a civil matter requiring the eviction process.
Does a squatter have to pay property taxes in Washington?
Yes. Paying property taxes is a legal requirement for an adverse possession claim in Washington. A squatter who never pays taxes on the property cannot successfully claim ownership, regardless of how long they've occupied it.
What's the difference between a squatter and a trespasser in Washington?
A trespasser enters without permission and doesn't claim any right to stay. Trespassing is a criminal offense, and police can remove trespassers immediately. A squatter asserts some form of occupancy and removal generally requires a civil eviction process, even if their legal claim to the property is weak or nonexistent.
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