Marketplace Facilitator Sales Tax: What Sellers Still Owe

A seller who lists a ceramic mug on Etsy and also sells the same mug through their own Shopify checkout is running two different tax regimes on one product. On the marketplace order, someone else calculates, collects, and remits the sales tax. On the direct-website order, that job still belongs to the seller. Plenty of sellers who spent 2019 and 2020 watching marketplaces switch on tax collection now assume the whole sales tax problem got solved for them. It didn’t.

Marketplace facilitator laws shift the duty to collect and remit sales tax from individual sellers to the platform itself, covering Amazon, Etsy, eBay, and similar sites in every state that has adopted such a law. Sellers still owe tax on direct-website, wholesale, and in-person sales, and often still need their own state registrations even after the marketplace starts collecting. That gap between “collected for me” and “no longer my problem” is where most seller mistakes happen.

What You Still Have to Track as a Marketplace Seller

Before getting into case law and statute dates, it helps to separate the two buckets clearly. Marketplace facilitator rules did not eliminate seller obligations, they redrew the boundary. The table below is the decision framework most sellers actually need day to day.

Two of those rows cause almost all of the confusion. Registration and nexus tracking don’t disappear just because a marketplace is collecting the tax. A handful of states still require a marketplace seller to hold a valid sales tax permit in that state once combined sales, marketplace plus direct, cross the economic nexus threshold. The marketplace, not the seller, is still the one remitting the tax on marketplace orders.

Background: How Wayfair Rewired Sales Tax for Online Sellers

For decades, a state could only require a business to collect its sales tax if that business had a physical presence there: a store, a warehouse, an employee. That rule, from a 1992 case called Quill Corp. v. North Dakota, made it nearly impossible for states to reach a rapidly growing volume of remote and online sales.

The U.S. Supreme Court overturned that physical-presence standard on June 21, 2018, in South Dakota v. Wayfair, Inc. South Dakota’s own law, upheld by the Court, set the template that most states copied.

Under that law, a remote seller establishes taxable “economic nexus” once it exceeds $100,000 in sales or 200 separate transactions into the state in a year. That figure comes from the South Dakota statute cited in the ruling, as summarized by the Sales Tax Institute. States were free to write their own numbers, and many did. Some dropped the transaction-count test entirely. Some raised the dollar figure well past $100,000.

Economic nexus solved half the problem for states. It gave them legal authority to require an out-of-state seller to collect tax once volume was high enough. It did nothing, on its own, about the practical mess of a marketplace hosting tens of thousands of small sellers. Many had no idea they’d crossed a threshold in Ohio, Georgia, or wherever their orders happened to ship.

Marketplace facilitator laws are the states’ answer to that second problem.

Rather than chase down individual Etsy and Amazon sellers one by one, states began requiring the platform itself to collect and remit tax on behalf of every seller using it. That duty kicks in once the platform’s own sales into a given state cross a threshold.

My honest read after mapping these dates: 2019 wasn’t a coordinated rollout. It was 34 legislatures independently racing to close the same revenue gap, which is exactly why the thresholds still don’t match today.

Washington was early, with a facilitator collection requirement effective January 1, 2018, later amended in 2019, according to Avalara’s state-by-state guide. Pennsylvania followed with an initial version effective April 1, 2018. By the end of 2018, New Jersey (November 1), Minnesota (October 1), and Connecticut (December 1) had also adopted facilitator collection duties, per the same Avalara compilation and TaxJar’s marketplace facilitator law summary.

2019 was the busiest year. Iowa and Alabama started January 1, 2019. Arkansas, California, Colorado, and Texas all switched on facilitator collection around mid-to-late 2019, with California and Texas both effective October 1, 2019. Illinois followed January 1, 2020. Kansas and Florida were comparatively late, both effective July 1, 2021 — Florida had resisted a broad remote-seller law until then. Missouri was the last state to adopt economic nexus and marketplace facilitator collection, effective January 1, 2023, closing out what had been, by that point, a five-year wave.

Secondary compilations differ slightly on exact counts by year because a few states amended their thresholds more than once. TaxJar’s guide puts the current total at every state with a general sales tax, which by its count is 46 states plus the District of Columbia and Puerto Rico.

Which Transactions the Marketplace Actually Collects Tax On

Facilitator statutes generally apply to any sale where the platform processes the payment and the listing runs through its marketplace infrastructure. That covers the obvious case: a buyer finds your product on Amazon, Etsy, eBay, or Walmart Marketplace and checks out through that platform’s cart. The platform’s system then calculates tax by ship-to address and adds it to the order.

It gets less obvious at the edges.

Some platforms distinguish between marketplace-facilitated orders and orders where a seller uses the platform mainly for payment processing but controls the listing and fulfillment independently. That distinction matters more for platforms with mixed business models than for pure marketplaces like Etsy.

A seller using Shopify with a payment gateway is not using a marketplace facilitator at all in the legal sense, even though Shopify is, functionally, a selling platform. Shopify doesn’t take title to goods or control the transaction the way a marketplace facilitator statute defines the role. Tax collection on those direct-site orders is the seller’s job, full stop.

Digital and service-based listings add another wrinkle.

Several states’ facilitator definitions were written broadly enough to sweep in digital goods, subscription boxes, and even short-term rental bookings processed through a platform. If a seller’s marketplace also handles digital downloads or bundled services, it’s worth checking whether the facilitator’s collection actually extends to that specific product type in that specific state, rather than assuming blanket coverage.

Where You Still Have Your Own Nexus and Registration Obligations

This is the section most sellers skip, and it’s the one that generates back-tax notices years later. Three separate obligations survive the marketplace’s tax collection.

• Direct sales through your own checkout. Whether that’s a Shopify store, a WooCommerce site, or a Square terminal at a craft fair, none of that runs through a marketplace facilitator. You calculate, collect, and remit that tax yourself, in every state where you have nexus.
• Registration in states where combined sales exceed the threshold. A number of states require a seller to hold an active sales tax permit once total sales into that state, marketplace and direct combined, cross the economic nexus threshold. That’s true even if the marketplace is the one actually remitting the tax. Skipping registration because “Amazon already collects it” is one of the most common seller errors, according to multiple state department of revenue FAQ pages and secondary guides from Avalara and TaxJar.
• Income tax and business registration. Marketplace facilitator laws only address sales tax. They have no bearing on state income tax nexus, franchise tax, or general business registration requirements. Those use their own separate nexus tests and are not solved by a marketplace collecting sales tax on your behalf.

None of this means sellers face double taxation. A marketplace that collects tax on an order isn’t asking the seller to also remit on that same order. That would be tax collected twice on one sale, which no state authorizes. The overlap is procedural, not financial: you may still need a permit and a state tax account even when you owe nothing further to remit on marketplace-collected orders.

State-by-State Variation You Can’t Treat as Uniform

No two states wrote identical statutes, and generic national guides, including this one, can only get a reader most of the way. Thresholds range from no minimum at all in some early-adopting states to $500,000 in California. Some states count only marketplace sales toward the threshold. Others count a seller’s total sales across every channel. A few states apply the facilitator’s collection duty per-facilitator, so if you sell through three marketplaces, each one evaluates its own threshold independently rather than combining.

The table below is a simplified, non-exhaustive reference built from the dated effective dates found in this research. Treat it as a starting point for figuring out which state page to read next, not as a final answer for any specific state.

Every other state not listed above has also adopted a marketplace facilitator law by now. TaxJar counts 46 states plus D.C. and Puerto Rico with active statutes as of its most recent guide. This table is a sample, not a full census. Check your specific state’s department of revenue page for the current threshold before making a registration decision.

A Worked Example: Etsy Sales Plus a Direct Website

Numbers make this concrete faster than more prose does. Here’s a hypothetical, illustrative seller, not a real business, used purely to show how the pieces interact.

Dana runs a candle business. In one year, Dana sells $180,000 through Etsy and another $90,000 through a self-hosted Shopify store, shipping to customers spread across a dozen states. Etsy, as a registered marketplace facilitator, calculates and collects sales tax automatically on every one of the $180,000 in Etsy orders, in every state where Etsy has crossed its own collection threshold. For a platform Etsy’s size, that’s effectively every state with a facilitator law.

Dana’s $90,000 in Shopify sales is a different story entirely. No facilitator touches those orders. Dana has to determine, state by state, where that $90,000 (combined with the Etsy sales, in states that count total volume toward the threshold) pushes past the economic nexus line.

Say $22,000 of Dana’s total volume lands in Texas. Texas counts marketplace and direct sales together toward its threshold. Once Dana’s combined Texas sales cross the state’s threshold, Dana needs a Texas sales tax permit, even though Etsy already handles the Etsy-side collection. That’s because the direct-website portion of those Texas sales is entirely Dana’s responsibility to collect and remit.

Multiply that by twelve states and the actual workload becomes clear. Dana isn’t managing sales tax on $270,000 of revenue. Dana is managing sales tax on whatever slice of that $90,000 direct-channel total lands in each state where nexus is triggered, plus permit registration in states that require it regardless of who remits. That’s a materially smaller job than pre-2018 sellers faced. It is not zero, though, and it’s not automatic.

Common Mistakes Sellers Make

My own read, after going through a dozen state DOR FAQ pages for this piece: the registration-obligation gap is the one that actually costs sellers money, more than any confusion about rates or product taxability. States built these laws to protect their own revenue, not to protect sellers from paperwork.

Practical Action Checklist

A short, ordered list beats a long explainer when you’re trying to actually get compliant. Work through these in order.

Key Takeaways

• Marketplace facilitator laws move sales tax collection duty for marketplace orders from the seller to the platform, in every state that has adopted one.
• Direct-website, wholesale, and in-person sales are never covered by a marketplace’s collection. That stays entirely on the seller.
• Registration and permit requirements can survive even after a marketplace starts collecting. Check this per state rather than assuming.
• South Dakota v. Wayfair (June 21, 2018) created the economic nexus authority states needed. Marketplace facilitator statutes are the states’ follow-up mechanism built on top of it.
• Thresholds, counting rules, and effective dates differ by state. There is no single national rule to memorize.

Frequently Asked Questions

Do I still need a sales tax permit if Amazon already collects tax on my sales?

Sometimes, yes. A number of states require sellers to register once their combined sales, marketplace plus direct, cross the state’s economic nexus threshold, regardless of who is remitting the tax on any individual order. Check the specific state’s department of revenue guidance for marketplace sellers.

Does a marketplace facilitator law cover sales tax on my own Shopify store?

No. Facilitator statutes apply only to orders processed through the marketplace’s own checkout and payment infrastructure. Sales through a self-hosted store, even one using the same product listings, are the seller’s own collection responsibility.

What triggered these laws in the first place?

The Supreme Court’s June 21, 2018 decision in South Dakota v. Wayfair, Inc. allowed states to require tax collection based on sales volume rather than physical presence. States then layered marketplace facilitator statutes on top of that authority, mostly through 2019 and 2020, to collect from platforms rather than thousands of individual remote sellers.

Are marketplace facilitator rules the same in every state?

No. Thresholds range from no stated minimum to $500,000 in California, and states differ on whether they count marketplace and direct sales together or separately toward that threshold. Always verify the current rule for each state where you have meaningful sales volume.

Do these laws apply to gig-economy and 1099 reporting too?

Not directly. Marketplace facilitator statutes are a sales-tax mechanism, separate from the federal 1099-K and 1099-NEC information-reporting rules that apply to gig and marketplace income. For a closer look at how those reporting duties shifted onto platforms, see Finance Fundamentals’ coverage of the gig platform 1099 reporting threshold. That’s a related but distinct shift of a compliance duty, moving it from individual workers to the platform.

What happens if a state I’m registered in changes its threshold?

States have amended their own facilitator and economic nexus thresholds more than once since 2018. Pennsylvania and Minnesota both did. Treat any published threshold as current as of its stated effective date, not as permanent, and recheck periodically.

Sales tax compliance for online sellers didn’t get simpler after 2018 so much as it got redistributed. The marketplace now owns the mechanical part: calculating a rate, applying it, sending the money in. What’s left for the seller is smaller than it used to be, but it’s also easier to overlook precisely because it looks solved. It isn’t, for the direct-sales slice of a seller’s business, and the states that built these statutes are not shy about auditing the gap.

References

• South Dakota v. Wayfair, Inc., 585 U.S. ___ (2018), decided June 21, 2018 — Supreme Court of the United States.
• Sales Tax Institute, “What do I need to know about the Wayfair case and economic nexus?” — South Dakota v. Wayfair FAQ.
• Avalara, “State-by-state guide to marketplace facilitator laws” — secondary compilation of state effective dates and thresholds.
• TaxJar, “Marketplace facilitator laws, explained” — secondary compilation of state adoption and thresholds.
• Tax Notes, “Roundup: Marketplace Facilitator Laws Enacted in 33 States” (2019).