What is Washington's e-commerce sales tax in 2026?

Washington's 2026 e-commerce sales tax: out-of-state sellers collect once they cross $100,000 in Washington-destination revenue. As a remote seller, charge the 6.50% state rate plus any applicable local rate at the buyer's ship-to address.

Do I collect sales tax on every Washington order?

You collect Washington sales tax once you cross the economic nexus threshold ($100,000). Below threshold, you don't need to collect unless you have physical nexus (office, employees, inventory in Washington).

What rate do I charge for Washington e-commerce sales?

For sales shipped into Washington from out of state, charge the 6.50% state rate plus any applicable local rate at the buyer's ship-to address. Most e-commerce platforms (Shopify, WooCommerce) can apply destination rates automatically when you enable WA in tax settings. Sales that both begin and end inside Washington can follow a different sourcing rule in a minority of states — check with the Washington Department of Revenue if you are an in-state seller.

Do I need to collect sales tax on shipping in Washington?

It depends on state-specific rules. Many states tax shipping when the product is taxable; some states exempt shipping if separately stated. Check Washington's specific policy or use a tax service that encodes the rule.

Washington E-commerce Sales Tax Nexus Guide — 2026

Updated 2026-07-20

Reviewed by Nexus by State research team using official state tax sources. Last reviewed 2026-07-20.

Guide content last reviewed: 2026-07-20

If your E-commerce business sells $100,000 into Washington in a calendar year, you have economic nexus and must register, collect, and remit Washington sales tax.

E-commerce sales tax basics in Washington

For a direct-to-consumer store (Shopify, WooCommerce, BigCommerce, or custom) shipping to Washington buyers, the economic nexus trigger is $100,000 in WA-destination revenue (effective 2020-01-01). Crossing that bar obligates registration, collection, and periodic filing.

Once registered, charge 6.50% state tax plus the applicable local rate — averaging 3.01% across Washington but varying by the buyer's shipping ZIP on most tangible personal property. Digital products, subscriptions, and professional services have different treatment — see the Washington SaaS page if you sell software or digital goods.

Registration + collection checklist

Register with the Washington Department of Revenue for a sales tax permit.
Configure your cart platform to collect tax at the destination rate. Enable WA in your tax settings.
As a remote seller, charge the combined state + local rate at the customer's delivery address — interstate sales are sourced to the destination, not to where you ship from.
File returns on the cadence your DOR assigns (monthly, quarterly, or annually).
Track your Washington-sourced revenue monthly so you know when you're approaching or below threshold for the next period.

Common mistakes e-commerce sellers make in Washington

Using origin-based rates (your HQ state's rate) instead of destination rates. A sale shipped from outside Washington into Washington is sourced to the buyer's delivery address, so charge the WA rate, not your home state's. Intrastate sales are a separate question: a minority of US states apply origin sourcing to sales that both begin and end in-state, so if your business is located in Washington, confirm the intrastate rule with the Washington Department of Revenue before configuring your cart.
Guessing at how marketplace sales count toward the Washington threshold. States split on this — some let a seller exclude sales a registered marketplace facilitator already collected on, others require those sales to be included in the threshold test even though the marketplace remits the tax. Read Washington’s own rule on the Washington marketplace facilitator page before adding or removing them from your nexus-tracking spreadsheet.
Waiting until year-end to register. Registration and collection deadlines run from the threshold-crossing date, and the length of that grace period is set by each state — some require collection on the very next transaction, others allow until the first day of a later month. Check Washington’s deadline with the DOR as soon as you cross $100,000; back-tax exposure accrues for every day you sell unregistered.
Forgetting to file zero returns once registered. Missing filings trigger penalties even when you owe no tax.

Washington nexus note

Washington sales tax nexus and economic nexus threshold: $100,000 in gross receipts sourced or attributed to Washington in the current or prior year (eff. 2020-01-01). The transaction-count threshold was eliminated when this unified threshold took effect. Crossing the threshold registers a remote seller for both retail sales tax AND Business & Occupation (B&O) tax — Washington classifies remote-seller revenue under the Retailing B&O classification, and a "No Local Activity" deduction is available when the seller has no in-state physical B&O nexus. Marketplace facilitator law (RCW 82.08.0531; marketplace facilitator defined at RCW 82.08.010(15)) applies the same $100,000 Washington-receipts threshold to marketplaces — Amazon, Etsy, eBay, and Walmart collect and remit Washington sales tax on third-party transactions they facilitate, and have provided monthly Washington-sales reports to their sellers since 2019-07-01. Direct-to-consumer Washington sales you make outside any marketplace continue to count toward your own $100,000 economic-nexus calculation.

What to do next

Read the full Washington overview for thresholds, filing frequency, marketplace facilitator rules, and registration links. Use the nexus calculator to check whether you have crossed the threshold. For background on the post-Wayfair economic nexus framework, see the pillar guide.

E-commerce sales tax in other states

Compare Washington's e-commerce rules with nearby and similar states' e-commerce sales tax guides:

Frequently asked questions

What is Washington's e-commerce sales tax in 2026?: Washington's 2026 e-commerce sales tax: out-of-state sellers collect once they cross $100,000 in Washington-destination revenue. As a remote seller, charge the 6.50% state rate plus any applicable local rate at the buyer's ship-to address.
Do I collect sales tax on every Washington order?: You collect Washington sales tax once you cross the economic nexus threshold ($100,000). Below threshold, you don't need to collect unless you have physical nexus (office, employees, inventory in Washington).
What rate do I charge for Washington e-commerce sales?: For sales shipped into Washington from out of state, charge the 6.50% state rate plus any applicable local rate at the buyer's ship-to address. Most e-commerce platforms (Shopify, WooCommerce) can apply destination rates automatically when you enable WA in tax settings. Sales that both begin and end inside Washington can follow a different sourcing rule in a minority of states — check with the Washington Department of Revenue if you are an in-state seller.
Do I need to collect sales tax on shipping in Washington?: It depends on state-specific rules. Many states tax shipping when the product is taxable; some states exempt shipping if separately stated. Check Washington's specific policy or use a tax service that encodes the rule.

Sources

date_retrieved: 2026-05-26