Are You Overpaying Property Taxes in King County, WA?
For King County homeowners. Enter your address to find out.
Free evaluation
We check your King County assessment against real comparable sales and tell you if you have a case.
No win, no charge
Flat $89, only if the county reduces your assessment. Nothing if you don't win.
Appeal-ready in 2 days
We build your case within 2 days and file immediately when King County opens appeals for your area.
How It Works
Enter Your Address
Enter your address to get started.
Get Your Free Evaluation
Get your evaluation in seconds. We analyze comparable home sales near yours to check if the county overassessed your property. If the data doesn't support a case, we tell you upfront.
FreeAuthorize
Sign the Authorization of Agency and provide a payment method. No charge until your appeal wins.
No upfrontWe Prepare and File Your Appeal
We build your case within 2 days and file immediately when King County opens appeals for your area. We represent you at the hearing — you don't lift a finger.
$89 — only if your appeal winsMost appeals fail for one reason: weak evidence. Here's how we fix that.
Why Most Appeals Fail
The burden of proof is on you — and the system is stacked against you.
According to King County:
“By law, the Assessor is presumed to be correct. The burden of proof is on you.”
Most appeals are filed without strong comparable sales, the key evidence required to win. As a result, only about 25% of appeals lead to a reduction.
How We Help You Win
We give you the evidence to win.
By analyzing recent sales of similar homes near yours, we calculate your home's indicated market value and build a complete, evidence-backed report.
• If the data doesn't support an appeal, we tell you upfront — no wasted time.
• If it does, we show you the potential savings, backed by real comparable sales — no inflated claims.
Why Choose Appealo?
| Feature | Appealo | Traditional Agents |
|---|---|---|
| Local expertise | King County specialist | Varies |
| Upfront fee | $0 | Varies |
| Cost | $89 flat fee | 25–35% of savings |
| Case preparation | Ready in 2 days | 2–3 weeks |
| Evaluation | Instant | Days |
Frequently Asked Questions
What types of properties do you work with?
We focus on residential properties in King County, WA. If you own a single-family home here, we can help.
What does the $89 cover?
Everything — the comparable sales analysis, the full evidence package, and filing your appeal with the King County Board of Equalization. No hidden fees.
When do I get charged?
Only if the county approves a reduction on your appeal. If you don't win, you pay nothing.
What if my appeal doesn't win?
You owe us nothing. The $89 is only charged on a successful outcome.
What if I'm not sure my home is overassessed?
That's exactly what we figure out first. We run the comparable sales analysis before recommending anything. If the evidence doesn't support your case, we tell you — so you don't file a losing appeal.
Do I need to attend a hearing?
No. We prepare all the evidence and represent you at the hearing on your behalf — you don't need to appear. We handle everything from filing to the hearing itself.
How does the 2-day filing work?
Once we confirm your case is worth filing, you sign the Authorization of Agent and provide a payment method. From there, we prepare the comparable sales evidence package and submit it to the county within 2 business days — fully handled on your behalf.
File Before the King County Deadline — We Move in 2 Days
Free evaluation. Honest answer. No charge unless your appeal wins.
Get my free evaluation