Washington sales tax on home remodeling, explained

The line item nobody warns you about

Ask homeowners on either side of the Columbia River what a remodel costs and you will get numbers that are not comparing the same thing. In Oregon there is no sales tax on a remodeling contract. In Washington, the whole contract is taxed. Almost no local remodeling website explains this, so budgets built from national cost guides land about nine percent short. Here is the rule, the current rate, and the honest math.

The rule: custom remodeling is a retail sale

Under the Washington Department of Revenue's construction guide, custom construction performed for a homeowner is a retail sale. That means the contractor collects retail sales tax from you on the total contract price: labor, materials, subcontractor charges, overhead and profit, even permit fees that are passed through the contract. The rate is set by the job-site address, not by where the contractor is based or where the cabinets were bought.

Subcontractors on a custom project operate as wholesalers using reseller permits, so the tax is not stacked twice; the prime contractor collects it once, from you, on the full price. This is the normal, lawful structure for residential remodeling in Washington. A contractor who quotes you "no sales tax" is not giving you a discount, they are giving you a compliance problem.

The current rate in Vancouver

The combined state and local rate inside the City of Vancouver is 8.9 percent as of October 2026, per the Department of Revenue's address-based rate lookup. Rates vary by city within Clark County, so a Camas, Battle Ground or unincorporated Salmon Creek address can differ slightly; the DOR lookup settles it for any address.

What that does to a real budget

The Oregon question

Living this close to Portland, everyone asks. Two honest answers. First, buying materials in Oregon does not remove the tax: the contract for work performed at a Washington address carries Washington sales tax, and Washington use tax applies to out-of-state purchases brought home anyway. Second, the trade runs the other way too: Washington has no personal income tax, which is a large part of why so many households move to Clark County from Portland, a migration that roughly doubled between 2019 and 2022 per the Oregon Office of Economic Analysis. The sales tax on a remodel is the price of a tax structure most residents here come out ahead on.

Budget for it from day one

Our kitchen, bathroom and addition cost guides publish benchmark ranges from named national sources, and every one of them reminds you to add the sales tax line, because the national guides do not include it. When we prepare your written estimate, the tax is itemized up front. A nine percent surprise at the final invoice is a failure of planning, and it is avoidable.