NSNexus by State

Washington Dropshipping Sales Tax Guide — 2026

Updated

Reviewed by Nexus by State research team using official state tax sources. Last reviewed .

Guide content last reviewed: 2026-07-20

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

Dropshipping sales tax in Washington

As of June 2026, a Washington drop shipment is a three-party sale: you collect Washington sales tax from your customer on the retail price once your sales into the state pass $100,000, while your supplier charges you tax on the wholesale invoice only when it has Washington nexus and you can’t give it a valid resale certificate.

Dropshipping into Washington raises three distinct tax questions. First, you (the retailer) have to collect and remit Washington sales tax on your retail sales if you exceed $100,000. Second, your dropship supplier may charge YOU sales tax on the wholesale invoice if they have Washington nexus and you can't present a valid resale certificate. Third, the marketplace (if any) handles its own tax on facilitated transactions.

Washington applies 6.50% as the base state rate; local add-ons average 3.01%.

Resale certificates: which document each state accepts

  • If you hold a Washington sales tax permit, you can usually issue your dropshipper a WA resale certificate so it does not charge you sales tax on the wholesale invoice.
  • No Washington permit yet? Two multistate forms cover most states: the Streamlined Sales Tax Certificate of Exemption (SST form F0003), honored by all 24 SST member states, and the MTC Uniform Sales & Use Tax Resale Certificate, accepted by roughly 36 states.
  • A handful of states reject an out-of-state resale certificate from the true retailer in a drop shipment and effectively require in-state registration or extra paperwork — notably California, Florida, Hawaii, Illinois, Maryland, and Massachusetts. Florida also requires the supplier to obtain a transaction authorization number before honoring an MTC certificate. In those states a home-state certificate alone may not protect your supplier, so confirm the rule with that state’s Department of Revenue.

Sources: MTC Uniform Sales & Use Tax Resale Certificate (multijurisdiction) and the Streamlined Sales Tax Governing Board. date_retrieved: 2026-06-27. State acceptance changes — verify with the relevant state DOR before relying on a multistate certificate.

Common dropshipping mistakes in Washington

  • Treating your dropshipper's nexus as if it obligates them to collect from the end customer — no, they invoice you at wholesale; you invoice the customer at retail. Only the retail transaction is subject to collection duty.
  • Forgetting that your retail revenue into Washington still counts toward the economic nexus threshold, independent of the dropshipping arrangement.
  • Not keeping resale certificates on file — your supplier will charge you tax (and you'll have already collected from the customer), eroding margin.

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.

Dropshipping sales tax in other states

Compare Washington's dropshipping rules with nearby and similar states' dropshipping sales tax guides:

Frequently asked questions

Who collects Washington sales tax on dropshipped orders?
You do, as the retailer. Your dropshipper invoices you at wholesale; you invoice the customer at retail. Collection duty follows the retail transaction — that's you.
Will my dropshipper charge me Washington sales tax on the wholesale?
Only if your dropshipper has Washington nexus AND you can't provide a valid WA resale certificate. Obtain resale certificates for every state where your dropshipper operates.
Does dropshipping trigger economic nexus in Washington?
Yes, your retail revenue into Washington still counts toward the $100,000 threshold, independent of how fulfillment happens.
Can I use an out-of-state resale certificate for a dropshipper in Washington?
Usually yes — most states accept the Streamlined (SST form F0003) or MTC multijurisdiction resale certificate, so your WA dropshipper can take it instead of charging you tax on the wholesale invoice. But California, Florida, Hawaii, Illinois, Maryland, and Massachusetts reject an out-of-state certificate from the true retailer in a drop shipment and effectively require in-state registration (Florida also wants a transaction authorization number). Confirm Washington's current rule with its Department of Revenue. Verified 2026-06-27.

Sources

date_retrieved: 2026-05-26