Travis Bunn
Founder, AppealDesk · Published March 1, 2026
How Much Can Property Taxes Increase in Washington? 2026 Complete Guide
Updated July 2026
Quick Answer
Washington caps how fast a taxing district's revenue can grow, not how fast your assessment can grow. There is no limit on how much your assessed value can rise in a year: property is assessed at 100 percent of true and fair market value and revalued annually in every county. The binding limit is RCW 84.55, the 1 percent levy lid, which says each district's regular property tax levy revenue may grow by at most 1 percent per year, plus revenue from new construction.
That is a limit on the district's total collection, not on your individual bill. Your bill can rise well above 1 percent if your home appreciated faster than the district average, or if voters approved a lid lift or an excess levy. If your assessment looks wrong, the appeal goes to your county Board of Equalization, generally by July 1 or within 30 days of your change-of-value notice, whichever is later. Large counties including King and Snohomish extend that to 60 days.
Most homeowners never challenge their assessment, usually because nobody tells them they can or shows them how. That gap is the whole reason AppealDesk exists: see what your county has your home on record at, free, and if the number looks wrong we build the case for $49.
Washington's 1% Levy Lid (RCW 84.55): What It Actually Limits
Most states that limit property taxes do it at the property level: a homestead cap holds your taxable value down even when the market runs ahead of it. Washington does the opposite. It leaves your value alone and constrains what the government may collect.
Under RCW 84.55, a taxing district's regular levy may collect at most 1 percent more than the highest lawful levy it has collected. For districts with a population over 10,000, the limit factor is actually the lesser of 1 percent or inflation as measured by the implicit price deflator, so in a low-inflation year a large city or county may be held to less than 1 percent. The lid traces back to Initiative 747 in 2001. The initiative was struck down by the courts in 2007, and the Legislature re-enacted the 1 percent limit the same year, which is why the rule has survived in essentially its original form for more than two decades.
Two mechanics inside the statute matter to homeowners. First, new construction, improvements, and additions to state-assessed utility value are excluded from the limit calculation. A district that gains a new subdivision collects tax on that new value on top of its 1 percent increase, which is why a fast-growing county's total collections can climb far faster than 1 percent while every individual levy stays inside the lid. Second, a district that levies less than its maximum accrues banked capacity, and it can use that unused capacity in a later year. A jurisdiction that took nothing for three years is not permanently capped at 1 percent going forward: it can draw down the bank and post a larger single-year increase without breaking the law.
Why Your Bill Can Rise More Than 1%
This is the part the phrase "1 percent cap" hides, and it is the single most useful thing to understand about Washington property tax. The lid holds the size of the pot. It says nothing about how the pot is divided among the properties inside the district. Every year the assessor revalues, and the levy is spread across the new total assessed value. If your home rose faster than the district average, your slice of the pot grows, and your bill grows with it. If your home rose slower than average, your slice shrinks and your bill can fall even as the district collects more.
The arithmetic is straightforward. Suppose a district collected $10,000,000 last year and takes the full 1 percent increase, so it collects $10,100,000 this year. Suppose total assessed value in the district rose 8 percent, but your home's assessed value rose 20 percent. Your share of the district's value grew by a factor of 1.20 divided by 1.08, which is about 1.111. Multiply that by the 1.01 levy growth and your bill rises about 12 percent. A homeowner who paid $4,000 last year would owe roughly $4,489 this year, and every dollar of that increase is legal under a 1 percent lid.
Nothing about that outcome depends on whether you are a long-term owner, whether the house is your primary residence, or whether you recently bought it. Washington has no acquisition-value system, so nothing resets when a property sells, and there is no tenure-based or residence-based protection built into the levy lid. The lid is a budget rule for governments, not a shield for households.
Caps and rate limits only control how fast your bill can grow. Nothing in them checks whether the number underneath is right. Assessors in Washington set values with mass-appraisal models that price thousands of homes at once, and nobody reviews yours unless you challenge it.
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Do Property Taxes Go Up Every Year in Washington?
Not automatically, and not uniformly. Because every county revalues annually, your assessed value changes every year in either direction, and because the levy lid is applied district by district, your bill is the sum of several separate decisions: the county, the city, the school district, the fire district, the library district, and any others that overlap your parcel. Some of them will take their full increase, some will take less and bank the difference, and some will have a voter-approved levy running that sits outside the regular lid entirely.
That is why two neighbors on the same street can see very different year-over-year changes, and why a countywide headline about an average increase tells you almost nothing about your own statement. The only number specific to you is your assessed value, and it is the only input in the whole calculation you are entitled to contest.
Did Washington Raise the Property Tax Cap?
No. In the 2025 session, House Democrats proposed raising the levy growth cap from 1 percent to population growth plus inflation, up to a maximum of 3 percent, through HB 2049 and its companion SB 5798. The proposal generated a great deal of coverage, and many homeowners still believe the cap changed. It did not. Governor Ferguson's opposition killed the cap increase, and HB 2049 ultimately passed only as K-12 school funding legislation. The 1 percent limit factor in RCW 84.55 survived unchanged.
If you are reading older articles about a 3 percent Washington property tax cap, they are describing a bill that failed. The rule in force for 2026 is still the 1 percent lid, still with the lesser-of-inflation adjustment for districts over 10,000 population.
What Changed in 2026: HB 2442 and Levy Lid Lifts
The 2026 change went to the override valve rather than the cap itself. Section 501 of HB 2442, effective July 1, 2026, loosens how levy lid lifts work. A single-year lid lift can now set a rate for two consecutive years rather than one, and a multi-year lid lift can run for up to 10 years instead of the previous 6-year maximum. The change applies to cities, counties, and fire, hospital, library, and park districts.
Practically, that means the districts around you can ask voters for longer-lasting authority to exceed the 1 percent path, and a yes vote now commits a longer stretch of years than it used to. The cap on regular levy growth is untouched. What changed is how durable a voter-approved departure from it can be.
Voter-Approved Levies and Lid Lifts: The Exceptions That Move Your Bill
Two categories of levy sit outside the 1 percent growth path. A levy lid lift is a ballot measure asking voters to let a district raise its regular levy above what RCW 84.55 would otherwise allow. An excess levy, the most familiar being a school bond or a school programs and operations levy, is approved by voters for a specific purpose and is not constrained by the regular levy limit at all.
When homeowners see a bill jump by a double-digit percentage in a year, the cause is usually one of three things: a voter-approved measure that passed in their district, a revaluation that moved their property up faster than their neighbors', or both at once. Reviewing the levy detail on your statement will tell you which districts moved. The county assessor publishes the levy rates for each district, and comparing this year's to last year's separates a policy change you voted on from a valuation change you can appeal.
Nothing in the Cap Checks Whether Your Assessed Value Is Right
Because Washington's protection operates on district revenue, the state has no mechanism that reviews individual assessments for accuracy. Annual revaluation is done by mass appraisal: a model prices thousands of properties at once from sales data, square footage, year built, and neighborhood, and the output becomes your assessed value without a human ever looking at your particular house. Condition problems, an unfinished basement counted as finished, a lot with drainage issues, a comparable sale that was not arm's length: none of that surfaces unless the owner raises it.
In a state with no assessment cap, that error travels straight through to the bill. There is no ceiling absorbing it. This is the reason an appeal is worth more in Washington than in states where a homestead cap already holds taxable value below market: here, the assessed value is the bill.
- California2% a year
- Florida3% homestead
- Texas10% homestead
Washington: Levy cap, 1%. That is a different kind of limit from the bars above, which cap the assessment itself.
The 1% limit applies to a jurisdiction’s regular levy, and banked capacity can exceed it in a single year.
A cap limits how fast the number grows. It does not check whether the number was right to begin with.
What you can do about it
How to Appeal Your Assessment in Washington
Appeals go to your county Board of Equalization, an independent body separate from the assessor. The general statewide rule is that the petition is due by July 1 of the assessment year, or within 30 days of the date the assessor mailed your change-of-value notice, whichever is later. Counties are permitted to extend that notice window to 60 days, and the large counties do.
| Where you file | Deadline |
|---|---|
| County Board of Equalization (general rule) | July 1 of the assessment year, or 30 days after the change-of-value notice was mailed, whichever is later |
| King County Board of Equalization | 60 days from the date the notice was mailed |
| Snohomish County Board of Equalization | 60 days from the date the notice was mailed (2026 deadline: August 25, 2026) |
| Washington State Board of Tax Appeals | 30 days from the mailing of the county board's decision |
Confirm your own county's window with the county assessor or board of equalization before you rely on a date, because the 30-day versus 60-day choice is made county by county. The substance of the appeal is the same everywhere: you are arguing that the assessor's market value estimate is higher than what your property would actually sell for, and the evidence that carries that argument is comparable sales near your valuation date, plus documentation of anything about the property the model could not see.
A real AppealDesk order, King County
In June 2026, a homeowner in King County ran the check. The county had their home on record at $2,220,000, while recorded sales of comparable homes supported about $1,682,489: an over-assessment of $537,511, worth roughly $4,757 per year if corrected. Their packet laid out the comparable sales, the forms, and the filing steps. Nobody at the county was ever going to run that check for them.
Growth limits only help if the number they grow from is fair. If your assessment jumped after a purchase, new construction, or a revaluation, that new number is the one nobody has reviewed. Checking it is free and takes about a minute.
Check the number your bill is figured from
Enter your address to pull your county record free. If it looks too high, your $49 packet gives you everything to challenge it.
Senior and Disabled Exemption: Income Thresholds and the Value Freeze
Washington's most substantial relief for homeowners is the senior citizen and disabled persons exemption under RCW 84.36.381. Owners who are 61 or older, or who are disabled, and whose combined disposable income falls under their county's threshold, receive both a reduction in taxes owed and a freeze on the assessed value used for the exempt portion. That freeze is the closest thing Washington has to a per-property cap, and it is available only to qualifying households, not to owners generally.
The income thresholds are county-specific and indexed to county median income, and the Department of Revenue has published updated thresholds for tax years 2027 through 2029. Because the numbers differ by county and are periodically revised, check the current threshold for your county with the Department of Revenue or your county assessor rather than relying on a statewide figure you saw in a news article.
Frequently Asked Questions
How much can my Washington property taxes increase in a year?
There is no legal ceiling on your individual increase. The 1 percent limit in RCW 84.55 applies to each taxing district's total regular levy revenue, not to any single property's bill. If your assessed value rose faster than the average in your district, or if voters approved a lid lift or an excess levy, your bill can rise by considerably more than 1 percent without anything unlawful happening.
Does Washington cap how much my assessed value can go up?
No. Washington assesses property at 100 percent of true and fair market value and revalues annually in every county. There is no assessment cap, no homestead cap, and no acquisition-value system, so nothing about your value resets or is held down when you buy, and nothing limits a year-over-year jump other than the market itself.
Did Washington raise the cap to 3 percent?
No. HB 2049 and SB 5798 in 2025 proposed replacing the 1 percent limit with population growth plus inflation up to 3 percent. The cap increase failed after the governor opposed it, and HB 2049 passed only as school funding legislation. The 1 percent limit factor remains in force.
Can a taxing district ever raise more than 1 percent legally?
Yes, in several ways. New construction and improvements add levy capacity on top of the 1 percent. A district that took less than its maximum in past years can draw on banked capacity. And voters can approve a levy lid lift or an excess levy, which sit outside the regular limit. As of July 1, 2026, HB 2442 lets a single-year lid lift set a rate for two consecutive years and extends multi-year lid lifts from 6 years to 10.
When is the deadline to appeal my assessment in Washington?
Generally July 1 of the assessment year or 30 days after your change-of-value notice was mailed, whichever is later. Counties may extend the notice window to 60 days, and King and Snohomish counties do. Snohomish County's 2026 deadline is August 25, 2026. Verify your date with your county board of equalization, since it varies by county and by mailing date.
Related Resources
If your assessed value looks high, the next step is the process itself: How to Appeal Property Taxes in Washington walks through filing with the county board of equalization. If you are still deciding whether the effort pays, Is It Worth Appealing Property Taxes? covers the math on typical reductions. And before you file anything, read What Evidence Do I Need for an Appeal?, because comparable sales are what boards actually respond to.
This article provides general information about Washington property tax law as of July 2026. Statutes, levy limits, income thresholds, and county filing deadlines change, and local rules vary. Consult your county assessor, your county board of equalization, or a tax professional for advice specific to your situation.