Marketplace facilitator laws require online platforms such as Amazon, Walmart, and Etsy to collect and remit sales tax on behalf of third party sellers.
These laws were introduced after the South Dakota v Wayfair decision to simplify sales tax collection for ecommerce transactions occurring through large marketplaces.
While marketplaces often collect tax for sellers, businesses must still understand how these laws affect economic nexus and registration requirements. If you are new to nexus rules, begin with the overview guide Economic Nexus Explained.
What Marketplace Facilitator Laws Do
Marketplace facilitator laws shift the responsibility for collecting sales tax from individual sellers to the marketplace platform. Under these laws, the marketplace platform collects and remits sales tax for transactions processed through the platform.
Common examples include:
- Amazon marketplace sales
- Walmart marketplace transactions
- Etsy marketplace transactions
- Other online marketplaces that process payments for sellers
These rules simplify tax collection for sellers because the platform handles tax calculation and remittance. However, sellers must still understand how marketplace activity affects nexus thresholds.
How Marketplace Sales Affect Economic Nexus
Even though marketplaces collect sales tax, the revenue generated from marketplace sales often counts toward economic nexus thresholds.
This means a seller may still exceed nexus thresholds based on marketplace revenue even if the marketplace collects tax on those transactions.
For example, if marketplace sales exceed a state’s revenue threshold, the seller may still be required to register with the state tax authority. You can review nexus thresholds across states in Economic Nexus by State.
Businesses can also estimate whether marketplace sales contributed to nexus thresholds using the economic nexus calculator.
Marketplace Laws and Amazon Sellers
Amazon sellers are among the most affected by marketplace facilitator laws. Amazon typically collects and remits sales tax for transactions occurring on its marketplace in most states.
However, sellers must still monitor:
- Economic nexus thresholds
- Physical nexus from inventory storage
- Sales from other platforms or direct channels
Do Sellers Still Need to Register for Sales Tax
In some cases, sellers may still need to register for sales tax even when marketplaces collect tax.
Registration requirements may depend on:
- Marketplace sales thresholds
- Sales through other channels such as direct ecommerce websites
- Inventory stored within a state
- Additional physical nexus factors
Because these rules vary by state, sellers should monitor both marketplace activity and direct sales revenue. Businesses that discover nexus exposure may need to estimate potential liabilities. The sales tax exposure calculator can help estimate potential exposure.
Why Marketplace Laws Matter for Ecommerce
Marketplace facilitator laws changed how sales tax is collected for many ecommerce transactions. These laws simplified tax collection for sellers using marketplaces while improving tax compliance for states.
However, sellers must still monitor nexus thresholds and registration requirements across multiple jurisdictions. Businesses that understand marketplace rules can manage compliance more effectively as their ecommerce operations grow.
Related Sales Tax Resources
If you are evaluating sales tax obligations for your business, you can start with the Economic Nexus Guide.
You can also review state requirements in the Economic Nexus by State and the Economic Nexus Thresholds by State reference.
Businesses assessing potential liability often review the Sales Tax Exposure Analysis or estimate risk using the Sales Tax Exposure Calculator.
If you operate across multiple states, the Economic Nexus Tracker can help monitor when thresholds may be triggered.
You can also check specific jurisdictions using the State Nexus Lookup Tool and evaluate potential exposure with the Nexus Risk Score.
For structured reporting, businesses may review the Sales Tax Risk Report or the State by State Nexus Report.
FAQs
What is a marketplace facilitator law?
A marketplace facilitator law requires online platforms to collect and remit sales tax on behalf of sellers using the platform.
Does Amazon collect sales tax for sellers?
Yes. Amazon collects and remits sales tax for marketplace transactions in most states.
Do marketplace sales count toward economic nexus?
Yes. Marketplace sales usually count toward revenue thresholds used to determine economic nexus.
Do sellers still need to register for sales tax?
In some cases sellers must still register depending on their sales activity and nexus rules in the state.
Why were marketplace facilitator laws introduced?
These laws were introduced to simplify tax collection and improve compliance for ecommerce transactions.
