Online marketplaces have become a major sales channel for ecommerce businesses. If you sell products through platforms such as Amazon, eBay, Etsy, Walmart, or TikTok Shop, those platforms may act as marketplace facilitators. A marketplace facilitator helps facilitate sales between sellers and customers. Depending on the platform, it may list products, process payments, collect sales tax, and assist with shipping. Marketplace facilitator laws determine when these platforms must collect and remit sales tax on behalf of sellers. However, using a marketplace does not automatically eliminate a seller’s own sales tax obligations. Sellers may still need to determine where they have economic nexus, register for sales tax, collect tax on direct sales, file returns, and maintain compliance records. This guide explains how marketplace facilitator laws work, how they affect sellers, and how marketplace sales can affect economic nexus. What are Marketplace Facilitator Laws?
The United States has implemented marketplace facilitator laws to simplify sales tax collection from online marketplace transactions.Instead of requiring every third-party seller to collect and remit sales tax on marketplace transactions, these laws generally place the responsibility for collection and remittance on the marketplace facilitator.For example, if a seller makes a taxable sale through a marketplace such as Etsy or eBay and the marketplace must collect tax under the applicable state law, the marketplace generally collects and remits the tax for that transaction.Marketplace facilitator laws help states collect sales tax from marketplace transactions while reducing the number of individual sellers responsible for collecting and remitting tax on those sales.However, the seller may still have other sales tax obligations, including registration, filing, reporting, or collecting tax on sales made outside the marketplace.Do All Marketplace Facilitators Collect Sales Tax?
No. Whether a marketplace must collect and remit sales tax depends on applicable state law and whether the marketplace meets the requirements to be a marketplace facilitator in that state.For example, a marketplace may be required to collect sales tax once it meets a state’s economic nexus or marketplace facilitator threshold. The specific requirements vary by state.
Sellers should therefore check the rules that apply to the marketplace and state involved rather than assume that every marketplace transaction is automatically covered.How do Marketplace Facilitator Laws Affect Sellers?
Marketplace facilitator laws can reduce the seller’s responsibility for collecting and remitting sales tax on covered marketplace transactions. However, they do not necessarily remove all of the seller’s sales tax obligations. Depending on the state, a marketplace seller may still need to:- Register for a sales tax permit after triggering an economic nexus threshold.
- Report marketplace sales on a sales tax return.
- File a zero or informational return when the marketplace collects and remits the tax.
- Register for a non-reporting tax status when the state offers it.
- Collect, file, and remit sales tax on taxable sales made outside the marketplace.
Do Marketplace Facilitator Sales Count Toward Economic Nexus?
It depends on the state.Some states include marketplace facilitator sales when calculating a seller’s economic nexus threshold. Other states exclude marketplace sales when the facilitator collects and remits sales tax on the seller’s behalf.This means sellers should not assume that marketplace sales always count toward an economic nexus threshold. They also should not assume that marketplace sales are always excluded.Treatment can vary by state, type of sale, and whether the marketplace facilitator collects and remits the applicable tax.For this reason, marketplace sellers should track marketplace sales separately from sales made through their own websites and other sales channels.Marketplace Facilitator Nexus vs. Seller Economic Nexus
The terms marketplace facilitator nexus and seller economic nexus are related but different concepts.Marketplace facilitator nexus determines when a marketplace facilitator must collect and remit sales tax on marketplace transactions.Seller economic nexus determines when an individual seller’s economic activity in a state creates a sales tax obligation.A marketplace can therefore collect sales tax on a seller’s marketplace transactions, while the seller may still have separate registration or filing obligations.Reaching an economic nexus threshold also does not automatically mean that the seller must collect tax on marketplace transactions. In states with marketplace facilitator laws, the facilitator may remain responsible for collecting and remitting tax on covered marketplace sales.Which States Count Marketplace Sales Toward Economic Nexus?
States take different approaches to marketplace sales when calculating economic nexus thresholds.Some states include marketplace sales in the seller’s threshold calculation. Others exclude marketplace sales when the marketplace facilitator collects and remits the tax.The following table provides a high-level view of the treatment. We advise sellers to verify the current rules with the applicable state tax authority because economic nexus rules can change.
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Example: How Marketplace Sales Can Affect Economic Nexus
Suppose a retailer makes $80,000 in sales through its Shopify store and $50,000 in sales through Amazon.The retailer sells to customers in a state with a $100,000 economic nexus threshold.If the state includes marketplace facilitator sales in the threshold calculation, the retailer may have $130,000 in qualifying sales and exceed the threshold.If the state excludes marketplace facilitator sales when the facilitator collects and remits the tax, the retailer may have only $80,000 in qualifying sales for that calculation.The seller should therefore check the state’s current rules before determining whether marketplace sales count toward the economic nexus threshold.Why Sellers Should Track Marketplace Sales Separately
Even when a marketplace collects and remits sales tax, sellers should maintain records of their marketplace transactions. Many states encourage businesses to keep records for 3 to 4 years.Tracking marketplace sales separately can help sellers:- Determine whether marketplace sales count toward an economic nexus threshold.
- Identify when registration may be required.
- Separate marketplace sales from direct website sales.
- Complete required sales tax returns.
- Document sales activity during a sales tax audit.
- Monitor changes in economic nexus exposure across states.
Marketplace Facilitator Tax Laws in Different States
While the general concept behind marketplace facilitator laws is straightforward, their requirements vary across states.Each state can establish its own rules for marketplace facilitators, including the sales threshold, transaction threshold, registration requirements, and marketplace transactions covered by the law.Refer to the table below for each state’s marketplace sales threshold.
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US Marketplace Sales Tax Compliance
Marketplace facilitator laws handle a lot of the heavy lifting, but they don’t give you a free pass on sales tax. Even if Amazon, Walmart, or Etsy collects and remits tax on your behalf, you’re still responsible for keeping your business compliant. Here’s exactly what compliance looks like for you.1. Track Your Direct Sales Separately From Marketplaces
If you sell through your own website in addition to platforms like Amazon, you must keep these channels separated. Marketplace facilitator laws only cover transactions on their specific platforms. For any direct sales you make through your own Shopify or WooCommerce store, you’re entirely responsible for calculating, collecting, and remitting the sales tax yourself.2. Keep Immaculate Records
You need to maintain detailed records of every single transaction, regardless of where it happened. Your records should clearly show the gross sales amount, the specific marketplace used, and the tax collected by that platform. If an auditor ever knocks on your door, you must be able to prove that the marketplace actually collected the tax on those specific orders.3. File Your Returns and Reconcile the Data
Many states still require you to file a sales tax return even if 100% of your sales go through a marketplace. When you file, you’ll usually report your gross sales first. Then you’ll deduct marketplace sales so that your net taxable sales reflect what you actually owe. Reconciling your records ensures you aren’t paying tax twice or underreporting your revenue.4. Maintain Proper Registrations
Don’t rush to close your sales tax permits just because a marketplace handles collections. In states where you have physical inventory, employees, or meet the direct sales thresholds, you must maintain an active sales tax registration. Closing a permit prematurely can lead to severe penalties and compliance headaches down the road.Which States Do Not Have Marketplace Facilitator Laws?
All 45 states with a statewide general sales tax, plus Washington, D.C., have marketplace-facilitator collection rules. The NOMAD states: Alaska, Delaware, Montana, New Hampshire, and Oregon do not have a statewide sales tax. Alaska does not have a statewide sales tax but allows local jurisdictions to impose sales taxes and marketplace-facilitator rules.Because sales tax rules differ by state and local jurisdiction, marketplace sellers should review the applicable requirements where their customers are located.Know Your Nexus As A Marketplace Seller
Marketplace sellers should monitor their economic nexus status even when a marketplace collects sales tax. To determine whether you have established economic nexus:- Option A: Trace your sales history. Review sales by state and separate marketplace transactions from direct sales. Check whether the state includes or excludes marketplace sales from its threshold calculation.
- Option B: Use sales tax software. TaxHero’s Nexus Analysis can help identify states where your business may have established sales tax nexus.
- Option C: Work with a sales tax professional. A sales tax professional can help review nexus exposure and determine whether registration or other compliance action is required.
The 2026 Trend: Why States are Dropping the 200-Transaction Rule
Economic nexus rules keep changing as states update their sales tax laws.Several states have removed or changed the traditional 200-transaction threshold. This means sellers should not assume that the same revenue and transaction thresholds apply in every state. Marketplace sellers should review current state requirements regularly, especially when their sales volume changes or they expand into new states.Does Marketplace Facilitator Collection Mean You’re Fully Compliant?
No, it doesn’t automatically mean you’re fully compliant. While marketplace facilitator laws take a massive burden off your shoulders, relying entirely on Amazon, Walmart, or Etsy to handle your sales tax compliance is a dangerous mistake. The marketplace only handles taxes on transactions processed through its platform. The rest of your business compliance is still your responsibility.Where You Still Have Tax Obligations
Even if a marketplace handles 90% of your sales, you’re still on the hook for several critical compliance areas:- Direct website sales: Your own online store’s entirely separate from 3rd-party platforms.
- Sales through other channels, such as wholesale orders, social media shopping links, or invoicing clients directly, aren’t covered by marketplace laws.
- Registration requirements: You must still register for tax permits in states where you meet physical or economic thresholds.
- Filing and reporting requirements: Most states expect you to file a zero-dollar or informational return showing your marketplace revenue.
- Recordkeeping and reconciliation: You’ve got to prove to auditors exactly which transactions were taxed by the marketplace.
A Practical Example
Imagine you run a growing ecommerce brand. You sell your product on Amazon and also run your own Shopify store. Amazon automatically calculates, collects, and remits the sales tax for every order placed on Amazon. However, Amazon doesn’t look at your Shopify store. For your direct website sales, you’re the one who must track nexus, set up tax collection at checkout, and file returns to pay the state. If you ignore your Shopify sales, you’re exposed to major tax penalties.The Practical Takeaway
Marketplace facilitator laws reduce some of your day-to-day compliance work, but they don’t eliminate it. Think of platforms as helpers for a specific slice of your business, while you remain the ultimate compliance officer for your entire company.When Does an Ecommerce Business Need Sales Tax Compliance Help?
It depends on your business layout. Not every ecommerce business needs a dedicated sales tax compliance service. If you’re just starting out and only sell in your home state, you can handle the paperwork on your own.However, as your business grows, manual tracking quickly turns into a major headache.When Help Becomes Highly Valuable
You’ll likely need to look for professional or automated help when your business hits these milestones:- Selling across multiple states: Managing different tax rules and deadlines across state lines gets complicated fast.
- Selling through multiple channels: Combining marketplace sales with your own direct website creates messy data.
- Managing multiple tax registrations: Tracking active permits across states takes too much time.
- Handling recurring filing obligations: Filing monthly or quarterly returns across multiple states can eat up your calendar.
- Growing your transaction volume: More orders mean a higher risk of costly calculation mistakes.
- Facing frequent rule changes: State tax laws change constantly, and keeping up with them’s a full-time job.
- Hitting resource limits: Your internal team doesn’t have the time or background to manage tax audits.
What a Compliance Service Actually Does
A dedicated service or software automates the trickiest parts of compliance. At a high level, they handle your registrations, ensure accurate tax calculation at checkout, manage your filing schedules, and monitor your ongoing economic nexus exposure.A Simple Decision Framework
To figure out where you stand, look at your current complexity:- Manual management is enough if: You have a simple business model, low order volume, and limited tax obligations in just one or two states.
- Automation or professional support makes sense if: You run a growing, multi-state, multi-channel business where a single compliance error could cost you thousands in penalties.
Frequently Asked Questions
1. Is Amazon a marketplace facilitator?+
Yes. Amazon acts as a marketplace facilitator for qualifying transactions and may collect and remit sales tax on behalf of third-party sellers.
However, Amazon’s sales tax collection does not necessarily eliminate the seller’s registration or filing obligations.
2. Is TikTok a marketplace facilitator?+
TikTok Shop can act as a marketplace facilitator for transactions made through its marketplace.
The specific tax collection responsibilities depend on the applicable state and the requirements that apply to the platform.
3. Do I need to pay taxes if I sell on Shopify?+
Selling through Shopify does not automatically make Shopify the marketplace facilitator responsible for collecting and remitting your sales tax.
In general, sellers using Shopify may remain responsible for collecting and filing their own sales tax.
Learn more → Does Shopify Collect Sales Tax?
4. Why is Shopify not a marketplace facilitator?+
Shopify primarily provides ecommerce infrastructure that allows businesses to operate their own online stores. A marketplace facilitator, by contrast, facilitates transactions between marketplace sellers and customers through a marketplace platform.
This distinction affects who may be responsible for collecting and remitting sales tax under state marketplace facilitator laws.
5. Do I need to collect sales tax if I sell online in different states?+
Not necessarily. Selling online to customers in different states does not automatically mean you need to collect sales tax in every state.
You generally need to collect sales tax when you have sales tax nexus in a state and are required to collect tax there. Nexus can be created through physical presence, economic activity, or other state-specific rules. Marketplace facilitator laws may also affect how you tax and report sales.
6. Does a marketplace facilitator handle all sales tax compliance?+
No, a marketplace facilitator only handles a limited scope of sales tax compliance. While marketplace collection reduces your workload, it only covers orders placed on that specific platform. It doesn’t handle compliance for independent or direct orders.
7. If a marketplace collects sales tax, do I still need to register?+
It depends on your business activities and the specific state rules.
While the marketplace handles collection, states consider your overall footprint to determine registration requirements. You’ll generally still need to register if:
- Marketplace sales count: Depending on the state, they may count toward your economic nexus threshold. Revisit the complete state-by-state table for your reference.
- The state requires informational returns: Many states expect you to register and file a report of your gross sales, even if the marketplace pays the tax.
- You have physical nexus: Storing inventory in a marketplace warehouse or hiring remote staff in a state usually triggers a physical registration requirement.
- You sell through your own website: If your direct website sales cross a state’s economic threshold, you must register to collect tax on those non-marketplace orders.
8. What sales tax responsibilities remain with marketplace sellers?+
Even when a marketplace handles tax collection, the ultimate compliance responsibility for your business stays with you.
Marketplace sellers remain fully responsible for:
- Direct sales: Tax on orders from your own site (like Shopify).
- Other channels: Wholesale deals or direct billing.
- Registrations: Keeping active permits where you have nexus.
- Filings: Submitting state returns, even if they’re zero-dollar reports.
- Recordkeeping: Proving to auditors that the marketplace collected the tax.
9. Do I need a service to handle sales tax compliance for my ecommerce business?+
Not necessarily. Some ecommerce businesses can manage sales tax compliance themselves, especially if they only operate in a few states.
A sales tax service can help when you have nexus in multiple states, sell through multiple channels, or need help with registration, tax calculation, filing, and remittance.