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Property Tax Appeal Guide

Resources for King County single-family homeowners. Honest guidance on when to appeal, how to build your case, and what to expect.

March 13, 2026·6 min read

Why Only 25% of King County Property Tax Appeals Succeed (And How to Be in That 25%)

The Board of Equalization reduces assessments in only 1 in 4 appeals. Here is what separates the cases that win from the ones that do not.

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March 10, 2026·6 min read

What Counts as Comparable Evidence in a King County Tax Appeal?

The Board of Equalization responds to one thing: market evidence. Here is exactly what makes a comparable sale strong — and what the Board will dismiss.

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March 8, 2026·5 min read

Flat Fee vs Commission: Which Property Tax Appeal Service Is Right for You?

Most appeal services charge 25–35% of your savings. Here is what that actually costs, and why a flat fee may serve King County homeowners better.

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March 5, 2026·4 min read

King County Property Tax Appeal Deadline 2026 — What You Need to Know

Missing the King County appeal deadline means waiting a full year. Here is exactly when to file, and how to move fast if time is short.

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March 1, 2026·7 min read

How to Appeal Your King County Property Tax Assessment (2026 Guide)

A step-by-step guide for single-family homeowners in King County, WA who believe their home is over-assessed.

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