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Walmart Marketplace Sales Tax and 1099-K: What Sellers Actually Owe

Walmart acts as a marketplace facilitator, meaning it collects and remits sales tax on your behalf in every state with a marketplace facilitator law — you generally don't need to register and file sales tax yourself on those transactions. Separately, if you cross $20,000 in gross sales and 200 transactions in a calendar year, Walmart issues you a 1099-K reporting your gross transaction volume — a figure that typically includes the sales tax Walmart collected and remitted, which means the number on the form is not the same as your actual taxable revenue.

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Why you're usually not the one remitting sales tax

Marketplace facilitator laws shift the legal responsibility for collecting and remitting sales tax from the individual seller to the platform itself, in states that have adopted them. Walmart, as the facilitator, handles this on facilitated marketplace sales — it collects tax at checkout and remits it to the relevant states, without you needing to register in each state separately for those transactions.

This is a meaningful practical relief compared to running your own storefront, where you'd otherwise need to track economic nexus thresholds and file in every state where you cross them. It doesn't mean sales tax disappears from your business entirely, though — it means it's handled on your behalf for the transactions Walmart facilitates.

Where the facilitator coverage doesn't reach

Marketplace facilitator coverage applies to sales made through the marketplace itself. If you sell the same products through other channels — your own website, wholesale, or direct B2B deals outside Walmart — those sales fall outside what Walmart is collecting and remitting for you, and your own sales tax obligations still apply there.

It's worth checking this distinction explicitly rather than assuming a blanket exemption just because your primary channel is a marketplace — a seller running Walmart alongside a Shopify store, for instance, still needs to handle sales tax for the Shopify side themselves.

Why your 1099-K number looks bigger than your actual income

Walmart issues a 1099-K when you cross $20,000 in gross sales and 200 transactions in a calendar year — a threshold that reverted to this pre-2022 level after a planned phase-down to $600 was cancelled. The form reports gross transaction volume, not net income, and that gross figure typically includes the sales tax Walmart collected on your behalf and already remitted to the states.

That distinction matters at tax time: if you report your 1099-K total directly as revenue without backing out the pass-through sales tax, you're overstating your actual taxable income. The fix is to pull Walmart's own tax and transaction reports alongside the 1099-K, separate what was sales tax from what was actual sale proceeds, and document that reconciliation so your reported income matches your real revenue.

This reconciliation step is one most new sellers don't know to do until their first 1099-K arrives and the number looks larger than what actually hit their bank account — worth setting up the habit of tracking this throughout the year rather than scrambling at filing time.

Official Walmart Source Information

Examples

A seller running Walmart exclusively assumes they need to register for sales tax in every state they ship to, and learns that Walmart's marketplace facilitator status already covers that for their marketplace sales.
A seller running both Walmart and a direct Shopify store correctly registers and remits sales tax for the Shopify sales, since those fall outside Walmart's facilitator coverage.
A seller's first 1099-K shows a total noticeably higher than their bank deposits; pulling Walmart's transaction report shows the gap is exactly the sales tax that was collected and remitted on their behalf.

Common Mistakes

Assuming Walmart's marketplace facilitator status covers sales tax on every channel you sell through, not just the marketplace itself.
Reporting the full 1099-K gross figure as taxable income without backing out pass-through sales tax included in that total.
Not reconciling Walmart's tax reports against the 1099-K until tax season, instead of tracking the difference throughout the year.
Not realizing the 1099-K threshold reverted to $20,000/200 transactions rather than the lower figure that had been planned before being cancelled.

FAQ

Do I need to collect sales tax myself as a Walmart Marketplace seller?

For sales made through Walmart Marketplace in states with a marketplace facilitator law, Walmart collects and remits the tax on your behalf. You're generally not the one registering and filing for those specific transactions.

What is the 1099-K threshold for Walmart sellers?

Walmart issues a 1099-K once you cross $20,000 in gross sales and 200 transactions in a calendar year. This reverted to the pre-2022 threshold after a planned phase-down to $600 was cancelled.

Why is my 1099-K amount higher than what I actually received?

The 1099-K reports gross transaction volume, which typically includes sales tax Walmart collected and already remitted on your behalf. Pull Walmart's own tax and transaction reports to separate that pass-through amount from your actual taxable revenue.

Does Walmart's sales tax collection cover sales I make outside the marketplace?

No — marketplace facilitator coverage only applies to sales made through Walmart itself. Sales through your own website, wholesale, or direct B2B deals fall outside that coverage, and your own sales tax obligations still apply to them.