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Aditya Kasturi | Realogics Sotheby's International Realty

Understanding Property Taxes Guide

Your property tax bill isn't random - and it's sometimes wrong. Understand how it's set and when to appeal.

Waterfront skyline used for tax-aware ownership planning.

Tax and Wealth

What this article helps you decide

> Eastside property taxes are set by the King County Assessor through assessed value and levy rates - and can be appealed. Understanding how the bill is built helps you budget and catch an over-assessment worth challenging (waterfront/view values get scrutinized).

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Understanding Property Taxes Guide

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Questions about Understanding Property Taxes Guide

Clear answers first. If one question changes the deal, bring it into the review before you move money.

Q1How is my property tax bill actually calculated?+

Assessed value times the combined levy rate, where levies fund schools, city, county, and voter-approved measures, with periodic revaluation. It's not random — understanding the two inputs is how you budget for it and spot an error.

Q2Why does my bill go up?+

Rising neighborhood values (view and waterfront especially), new voter-approved levies, and permitted improvements. Value increases and new levies are the usual drivers — which is why budgeting for steady increases is realistic, not pessimistic.

Q3Can I appeal my assessment?+

Yes — if your assessed value looks above market, you can appeal it to the county Board of Equalization within a deadline. View and waterfront assessments get scrutinized and are sometimes high, so an over-assessment is worth challenging.

Q4How do I know if my assessment is too high?+

Compare it to recent comparable sales. If your assessed value exceeds what similar homes actually sold for, that's the basis for an appeal — the assessor's value is an estimate, and estimates can be wrong.

Q5Are there exemptions that lower the bill?+

Yes — the senior/disabled exemption and deferral programs can reduce or postpone taxes for those who qualify. If you or a household member meets the age/disability and income tests, check eligibility before assuming the full bill applies.

Q6I think my assessment is high — what's the next step?+

Pull comparable sales and check the Board of Equalization appeal deadline. Reviewing the comps and your options is part of a Real Estate Review.

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Last updated: August 2, 2026

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