Washington Sales Tax — 6.5%

Washington funds itself without an income tax, and sales tax carries much of the difference. The 6.5% state rate is high on its own; local rates averaging 3.01% push the combined figure to 9.51%, third highest nationally, and parts of the Seattle area exceed 10%.

This makes Washington's overall tax system one of the more regressive in the country by most analyses. Households spending most of what they earn pay a far higher share of income in tax than high earners who save — the mirror image of how an income tax distributes burden.

Washington uses destination-based sourcing: the rate is set by where the goods are delivered, not where the seller is. For online and delivery purchases that means your own address determines the rate, which is why two neighbours on opposite sides of a city line can pay differently.

Groceries and prescription drugs are exempt. Washington also has no tax on most services, though the Business and Occupation tax on gross receipts effectively reaches them by another route.

The Washington state rate of 6.5% applies to most retail sales of tangible goods. Counties, cities and special districts add their own rates on top, and because those are set locally the total varies within the state. The 9.51% figure quoted here is a population-weighted average — the rate at your own address may be meaningfully higher or lower.

Ranked 3 of 50 by average combined rate, Washington sits above the national population-weighted average of 7.53% by 1.98 percentage points. That is the trade-off Washington makes: with no income tax to collect, consumption taxes carry more of the burden.

What gets taxed matters as much as the rate. States differ considerably on groceries, prescription drugs, clothing and services, and those exemptions can affect a household's real burden more than a percentage point on the headline rate. Check your state revenue department for the current exemption list before relying on any calculation for a business filing.