Marketplace Facilitator Laws Explained (by State)

Key Takeaways

• A marketplace facilitator law requires qualifying marketplaces, such as Amazon, Etsy, eBay, and Walmart Marketplace, to collect and remit sales tax on marketplace transactions.

• Marketplace collection does not automatically remove your registration or filing duties. You may still need a seller’s permit and state returns after your business establishes physical nexus or crosses an economic nexus threshold.

• Marketplace and direct sales may count together toward economic nexus, depending on the state. Review each state’s rules rather than tracking Amazon, Shopify, and other channels separately.

• Marketplace coverage applies only to sales processed through that marketplace. You remain responsible for collecting tax on direct sales when you have nexus and those sales are taxable.

• State thresholds and filing rules differ. Confirm the current rule for each state before canceling a registration, skipping a return, or treating marketplace sales as excluded from nexus calculations.

What is a marketplace facilitator?

A marketplace facilitator operates a platform where third-party sellers list products and customers place orders. State law assigns the platform responsibility for sales tax on transactions it facilitates. Amazon, Walmart Marketplace, Etsy, and eBay generally qualify where applicable state laws cover their activities.

Collecting and remitting on the seller’s behalf means the marketplace calculates the sales tax due on a covered order, charges the customer, and sends the collected amount to the state. The marketplace also reports those facilitated transactions as required by the state. The obligation applies to sales completed through that marketplace, rather than every sale the seller makes through other channels.

What does a marketplace facilitator law mean for me as a seller?

Marketplace facilitator laws remove the collection and remittance work for qualifying marketplace transactions. For an Amazon order, Amazon calculates the applicable sales tax, collects it from the buyer, and sends it to the state. You do not collect or remit that same tax again.

You still need accurate transaction records. Marketplace reports should separate gross sales, collected tax, fees, refunds, and payouts so you can reconcile revenue and prepare any required state returns. The marketplace handles the tax transaction by transaction, not your broader sales tax position.

Marketplace coverage also ends at the channel boundary. Amazon’s collection applies to qualifying Amazon orders, while sales through Shopify or another direct channel remain outside Amazon’s collection process. If you sell through several channels, you need a combined view of sales by state.

Registration and filing requirements require a separate state-by-state review. Marketplace collection can change what you owe on a return, but it does not automatically determine whether you must register or file.

Do you still need to register or file?

You may still need to register and file after a marketplace starts collecting sales tax for you. The marketplace assumes responsibility for tax on facilitated transactions. Your business remains responsible for evaluating nexus and meeting any seller-level registration or return requirements.

Physical nexus can create an obligation without regard to sales volume. An employee or office in a state commonly establishes physical nexus. Inventory stored in a third-party warehouse, including inventory placed through an FBA program, may also establish it. Marketplace collection does not remove nexus created by your own presence.

Economic nexus applies when your sales into a state exceed its revenue or transaction threshold. Most states measure the threshold using total sales into the state, including marketplace sales and direct sales. Some states exclude marketplace-facilitated sales or apply different measurement rules, so you must check each state's definition. A business could cross a $100,000 threshold through $80,000 of marketplace sales and $30,000 of direct sales even though neither channel exceeds the threshold alone.

Crossing a nexus threshold can trigger registration before you collect tax on direct sales. Marketplace collection continues to cover marketplace transactions, while your business collects and remits tax on taxable sales through its own website or another uncovered channel. Registration does not shift the marketplace tax back to you.

A registered seller may also need to file returns when the marketplace remits all tax due. Some states require sellers to report gross sales and then deduct marketplace-facilitated sales. The resulting return may show no tax due, but the filing still gives the state the required sales information. Other states excuse marketplace-only sellers from registration or filing, subject to specific conditions.

Missed obligations can produce different liabilities depending on the facts. A seller that failed to collect tax on direct sales may have to pay that tax from company funds, along with penalties and interest. A registered seller that skips a zero-liability return may receive delinquency notices or estimated assessments. Before closing an account or stopping returns, confirm that the state permits it and that no physical or economic nexus remains.

Which states have marketplace facilitator laws?

Most marketplace facilitator laws took effect in 2018 or 2019 after Wayfair. Economic nexus thresholds vary by state, and several states still use either a revenue amount or a transaction count.

Alaska has no statewide sales tax, but participating local jurisdictions apply marketplace rules. California, New York, and Texas use unusually high $500,000 revenue thresholds. Several states listed with a transaction-count option have since dropped it and now apply the revenue threshold alone, so confirm the current rule for any state before relying on a transaction count.

How do I track nexus exposure across multiple sales channels?

Marketplace facilitator coverage applies only to sales completed through that marketplace. Amazon generally collects and remits tax on qualifying Amazon orders, but its coverage does not extend to orders placed through your Shopify store.

Consider a state with a $100,000 economic nexus threshold that counts marketplace and direct sales. You make $60,000 through Amazon and $50,000 through Shopify during the measurement period. Neither channel crosses the threshold alone, but your combined $110,000 does. Amazon still handles tax on its transactions, while you must address the tax obligation for qualifying Shopify sales.

Consolidated sales tracking by state catches this exposure before separate channel reports obscure it. Combine Amazon, Shopify, and any other channel data for each state, then apply that state's threshold rules and measurement period. Keep marketplace-facilitated sales identifiable so you can separate tax the marketplace collected from tax tied to direct transactions.

Refunds and reporting differences can distort the totals, so reconcile channel data on a consistent schedule. A monthly review gives you time to investigate states approaching their thresholds rather than waiting for an annual total or a state notice.

How Taxwire helps

Taxwire’s free nexus study gives you an initial read on where combined marketplace and direct sales may have crossed state thresholds. You can connect supported sales channels or upload transaction data through a CSV export. The study covers one initial analysis and does not replace a full compliance review.

Monitor Nexus tracks economic and physical nexus across jurisdictions. It consolidates sales exposure across channels, so Amazon and Shopify revenue count toward the same state threshold where state rules require combined sales. Monitor Nexus also tracks physical presence created by employees, contractors, and inventory stored in warehouses.

When Taxwire identifies a registration obligation, Register obtains and manages the required state tax accounts. US registrations cost $150 per state. Taxwire’s in-house tax team can also handle ongoing returns and remittance after registration.

FAQ

Does Amazon collecting sales tax mean I do not need a seller’s permit?

Amazon’s collection does not automatically remove your registration obligation. You may still need a seller’s permit if physical presence or total sales into the state create nexus. Taxwire can review your combined marketplace and direct sales when assessing where registration applies.

Do I need to file a return when all my sales in a state go through a marketplace?

Some states require registered sellers to file returns even when a marketplace remits all tax. Your return may report marketplace sales and show no tax due, depending on the state’s rules. Taxwire can manage the required filing schedule after confirming your registration status.

What happens if I sell through multiple marketplaces?

You must combine sales across Amazon, Walmart Marketplace, Etsy, eBay, and any other channels when testing applicable state thresholds. Each marketplace may collect tax on its own transactions, but none tracks your full business exposure. Taxwire consolidates channel data by state for nexus monitoring.

Does marketplace revenue count toward my economic nexus threshold?

Most states include marketplace sales when calculating whether your total sales exceed their economic nexus threshold. A state may therefore require registration even when the marketplace already collects tax on those transactions. Taxwire applies each state’s threshold rules to your combined sales data.

Do marketplace facilitator laws cover sales through my own website?

Marketplace facilitator collection applies only to transactions processed by a qualifying marketplace. You remain responsible for collection on direct sales through Shopify or another owned storefront after nexus and registration apply. Taxwire can track the combined exposure while separating marketplace-collected tax from your direct-sales liability.

The bottom line

Marketplace facilitator laws reduce collection work, not compliance risk. Registration, filing, and direct-sales duties can remain even when a marketplace remits the tax. Track combined sales by state across every channel so you can identify nexus before a missed obligation prompts a state notice.

Reviewed by Steffani Pace, CPA, of Taxwire, in September 2026.