Washington Sales Tax for Amazon Sellers

Washington sales tax for Amazon sellers: the short answer

Marketplace facilitator status: Washington has had marketplace facilitator (MF) law in effect since 2018. Washington implemented marketplace facilitator law on January 1, 2018 - the first state to do so. Amazon collects Washington state + local sales tax automatically.

What this means for you as an Indian FBA seller: for all your Amazon US sales delivered to Washington customers, Amazon collects the appropriate Washington sales tax (state + applicable local) and remits to the state directly. You see the line items in your Seller Central report. You do not need to register, collect, or remit Washington sales tax on Amazon sales.

Washington sales tax rates

Washington has a 6.5% state base rate. Local taxes range 0.5-3.9%, with Seattle hitting the top of the range at 10.4% (some Seattle districts even higher). Most metros are 9-10%.

FBA fulfillment centers in Washington

Washington has 8+ Amazon FBA fulfillment centers in Seattle metro (BFI3, BFI4, BFI5, BFI7), Kent Valley (KSEA1, KSEA3), and Spokane (GEG1). Highest FC density per capita in the US (Amazon's home state effect).

Marketplace facilitator rules: when you DO have Washington obligations

Three scenarios where Amazon\'s MF coverage doesn\'t apply to you:

1. Selling outside Amazon: if you sell on your own Shopify store, eBay (not always MF), or wholesale to Washington-based B2B buyers, you may have direct obligations once you cross the economic nexus threshold of $100K.
2. Physical presence: if your LLC has a Washington-based employee, office, or owned warehouse, that triggers physical nexus. Washington sales tax registration is required regardless of channel.
3. Owned property & income tax: physical presence may also trigger Washington state income tax obligations on the portion of profit attributable to the state.

If you do need to register

If one of the above applies, registration is via Washington Department of Revenue at dor.wa.gov. The process typically takes 7-14 business days and requires your EIN, LLC details, and operating-history information. Filing frequency depends on volume - monthly, quarterly, or annually.

Washington-specific FBA notes

• Washington has no state income tax, only sales tax and Business & Occupation (B&O) tax. B&O tax applies if you have physical nexus or exceed thresholds.
• Washington B&O tax is a gross receipts tax - applies to non-MF Washington-related revenue if you have nexus.
• Seattle has additional city tax overlays. Amazon handles all of this.
• Spokane FBA center is a growing Pacific Northwest hub - secondary to Seattle proper.

Common questions

Does inventory at a Washington FBA center create nexus?

Historically yes (physical presence). Post-MF laws, this distinction is largely moot for sales tax - Amazon collects regardless. For state income tax, inventory presence creates a weak nexus that Washington generally does not pursue aggressively against foreign-owned LLCs whose only state contact is FBA inventory.

Do I need a Washington seller\'s permit for Amazon FBA only?

No, for Amazon FBA-only operations. Washington\'s MF law has Amazon as the registered remitter. You don\'t need your own permit unless you sell directly via other channels above threshold.

What about returns processed in Washington?

Amazon\'s MF remittance covers full refund flows. The sales tax originally collected gets refunded automatically when the order refunds. No separate filing required on your part.

Other state guides

• All states overview
• California sales tax
• Texas sales tax
• New York sales tax
• Complete US sales tax blog post