Are You Overpaying Property Taxes in King County, WA?
For King County homeowners. Enter your address to find out.
Honest evaluation
We tell you whether it is worth filing
Flat $89, no upfront fee
Only charged if the county approves a reduction
Filed in 2 days
Faster than any traditional agent
How It Works
Enter Your Address
Search your King County home address and we immediately pull your assessment data.
FreeGet an Honest Evaluation
We find recently sold single-family homes near yours and calculate whether the evidence supports an appeal. If it does not, we tell you.
We File in 2 Days
If your home is worth appealing, we build the market evidence and file everything with King County on your behalf.
$89 — no upfront, 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 |
|---|---|---|
| Based in King County | Yes | Not sure |
| Upfront fee | $0 | Varies |
| Cost | $89 flat fee | 25–35% of savings |
| Cost on $1,000 savings | $89 | $250–$350 |
| Filing speed | 2 days | 2–3 weeks |
| Honest evaluation | We tell you whether it is worth filing | Savings estimates can be inflated |
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 submit everything together, so a hearing is rarely necessary. When we file, we select the no-hearing option — the county reviews your evidence on file and issues a decision without requiring you to appear.
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