When is the deadline to appeal in Clark County?
If you got a 2026 Notice of Value, your window is likely open right now. Clark County mails most notices in June, with the balance in September, and your deadline is July 1 or 60 calendar days from your notice's mailing date, whichever is later. For most owners that means a June to August window.
Clark County, like the rest of Washington, revalues every property annually at 100 percent of market value as of January 1, so the notice you are holding reflects the county's estimate of what your home was worth on that date.
The petition must be received or postmarked by the deadline, and the county is blunt about the consequence: late appeals cannot be accepted. Find the mailing date on your notice today and count forward 60 days, because that date, not July 1, is almost certainly your real deadline.
One wrinkle: only properties whose values changed receive a notice. If yours did not change and you still think it is too high, contact the Board of Equalization at 564-397-2337 to ask about your options and timing.
And if your notice is among the batch that mails in September, do not assume you missed anything. Your 60 day window simply starts later, counted from your own notice date, and runs into the fall.
How do you file a Clark County appeal?
Clark County makes filing easier than most Washington counties, and it is free. Appeals go to the Board of Equalization, a three member citizen board appointed by the County Council.
Between the online portal, email, mail, and hand delivery, there is no wrong door. The portal is the most convenient, since you can submit the petition and evidence in one place.
The steps:
- Complete the state petition, form REV 64 0075, and sign it. Unsigned petitions bounce.
- Attach a copy of your Notice of Value.
- Submit through the Property Valuation Appeal Portal at boeefile.clark.wa.gov, by email to BOE@clark.wa.gov, by mail to PO Box 5000, Vancouver 98666, or by hand delivery.
- Make sure it is received or postmarked within your 60 day window.
- Send any additional evidence at least 21 business days before your hearing.
- Wait for your hearing date, present your case in about 15 minutes or rest on your written evidence, and watch for the decision in the mail within 30 days of the hearing.
What evidence do you need?
Washington puts the burden of proof on the homeowner, so the petition needs to make an affirmative case that your assessed value exceeds market value as of January 1.
That means simply asserting the value is too high, or that your taxes went up too much, will not carry the day. You need market facts the board can point to when it lowers your value.
The board responds to the same evidence everywhere in the state:
- Recent sales of comparable homes in your area, and the closer they are to your home, your home's size and style, and the valuation date, the more weight they carry
- Errors in the county's property record, such as wrong square footage or room counts
- Photos and repair estimates documenting condition problems
- A recent appraisal or your own recent purchase price
- Lower assessments on truly similar homes nearby
What are your odds of winning?
Better than you might guess. By the county Board of Equalization's own account, historically over 50 percent of appeals end favorably for the owner.
That does not mean every petition wins or that outcomes are guaranteed. It means the board genuinely adjusts values when the evidence supports it, and a prepared homeowner with solid comparable sales is not fighting a rigged game.
It also fits how the system is designed. The board members are residents, not assessment staff, and their job is simply to decide whether your evidence of market value outweighs the county's.
Hearings themselves are modest affairs, about 15 minutes, and the board mails its decision within 30 days of the hearing. If you disagree, you can appeal to the Washington State Board of Tax Appeals within 30 days.
Fifteen minutes is not much time, which is another argument for a tight written packet. If your comparable sales are clear on paper, the hearing becomes a summary, not a debate.
How much money is at stake?
The median Clark County home is worth roughly $550,000, and effective tax rates run about 0.79 to 0.98 percent depending on where you live, with Vancouver near 0.99 percent. The median bill lands around $4,500 a year. For scale, the county's 2026 budget added only about $21 a year on a $550,000 home, so your assessment, not new county spending, is the lever that matters.
At about 0.9 percent, a $550,000 home pays roughly $4,950 a year. A 10 percent reduction saves about $495 per year, with a realistic range of about $435 to $540 depending on your local rate. Higher priced homes save proportionally more, and the reduction keeps working for you in later years too.
Keep paying your bill while the appeal is pending. Appeals do not pause what you owe, and the county refunds the difference if your value comes down.
A reduction can also pay off beyond a single year, since future revaluations generally start from a corrected picture of your home rather than an inflated one.
Is appealing worth it in Clark County?
The case here is unusually clean: filing is free, the e-filing portal takes minutes, hearings run about 15 minutes, and more than half of appeals historically go the owner's way. Against roughly $500 a year in potential savings, the downside is mostly the hour or two it takes to gather comparable sales.
If you are 61 or older or disabled, also look at the exemption program. Households with 2025 income at or below $62,000 may qualify for relief on 2026 taxes, and the ceiling rises to $85,000 for 2027 through 2029. Exemptions and appeals are separate tools, and many homeowners benefit from both.
Prefer to hand it off? Homespring prepares the evidence, files through the county portal, and sees the appeal through the hearing, with no upfront fee. Whatever route you take, check the mailing date on your Notice of Value today, because the 60 day clock is already running.