Sales tax guide for marketplace sellers
Understanding marketplace sales tax basics
What is marketplace facilitator legislation?
Definition
Purpose
Impact
Coverage
All states, except the NOMAD states, have marketplace facilitator laws in place.
Platform-specific requirements
Amazon marketplace
As the largest ecommerce platform, Amazon has comprehensive sales tax collection systems in place.
- Automatic collection
Amazon collects and remits sales tax in all states with marketplace facilitator laws. - Seller responsibilities
- Maintain accurate product tax codes
- Handle tax for any direct sales outside of Amazon
- Keep records of all transactions
- Monitor threshold limits in nonmarketplace states - Special considerations:
FBA (fulfillment by Amazon) inventory can create physical nexus in multiple states. This may affect your business’s nexus if selling outside of the Amazon platform as well (e.g., private website).
eBay marketplace
eBay handles most sales tax obligations automatically but requires seller attention to certain details.
Automated collection
eBay manages tax collection and remittance in applicable states.Seller guidelines
- Verify item categories for correct tax classification
- Monitor international sales tax requirements
- Keep detailed transaction recordsCross-border sales
eBay makes special considerations for international transactions and state-to-state commerce.
Walmart marketplace
Walmart’s marketplace has specific requirements for tax compliance and reporting.
Tax collection system
Walmart’s infrastructure offers automated collection and remittance.Seller Requirements
- Complete tax interview during onboarding
- Maintain accurate product categories
- Monitor tax collection reportsCompliance tools
Walmart allows access to specialized reporting and tax management features.
Etsy marketplace
Etsy’s unique platform caters to crafters and small businesses with specific tax considerations.
Tax handling
Etsy performs automatic calculation and collection in applicable jurisdictions.Seller responsibilities
- Set up tax profiles correctly
- Monitor international sales tax requirements
- Keep detailed records of all transactionsSpecial considerations:
Custom orders and digital products have unique tax requirements.
Essential record-keeping practices
Even if your marketplace facilitator is the one required to collect and remit sales tax on your behalf, you, as the business, still need to ensure compliance and be prepared for potential audits. The best way to be prepared is with thorough record-keeping.
Sales records
• Item descriptions and categories
• Tax collected per transaction
• Shipping details and destinations
Platform reports
• Tax collection reports
• Marketplace-provided tax documents
• Settlement statements
Retention requirements
Common challenges and solutions
Sales tax is crazy, and we’ve seen it all. Understanding the common challenges a marketplace seller might run into can help you prepare and respond effectively.
Multiple platform management
- Use centralized tracking systems
- Implement automated reporting tools
- Regular reconciliation of platform reports
Tax rate changes
- Subscribe to state tax authority updates
- Regular review of tax rates
- Platform notification systems
Audit preparation
- Organized record-keeping systems
- Regular compliance reviews
- Professional assistance when needed
Who We Help: Sales Tax for Marketplace Sellers
Marketplace facilitator laws require platforms to collect and remit tax on sales made through their marketplace. That's real, and it covers a meaningful portion of what most marketplace sellers owe. But it doesn't cover everything, and the gap between what the marketplace handles and what you're actually responsible for is where liability quietly accumulates.
What marketplace facilitator laws cover -- and what they don't
Marketplace facilitator laws apply to transactions processed through the marketplace. Tax on those sales: the platform handles it. Everything else is still your problem.
What the laws don't cover: your registration obligations. The fact that Amazon is collecting tax on your Amazon sales doesn't mean you have no obligation to be registered in the states where you have nexus. Registration requirements exist independently of who collects the tax.
They don't cover your direct-channel sales. If you sell through your own website in addition to a marketplace, nothing about the marketplace's tax collection touches those transactions. You're responsible for collecting, reporting, and remitting on every sale that happens outside the platform.
And they don't wipe out back liability. If you had nexus in a state before marketplace facilitator laws applied to your platform, or before the platform was collecting in that state, the prior obligation doesn't disappear.
What still creates obligations for marketplace sellers
Your marketplace sales count toward economic nexus thresholds even when the marketplace is collecting the tax. Cross $100,000 in sales or 200 transactions in a state through Amazon alone, and you may have nexus there for your direct-channel sales -- regardless of what Amazon is doing on the marketplace side.
FBA inventory creates physical nexus in the states where Amazon stores your products. That list of states changes as Amazon rebalances its fulfillment network, and it's rarely the list sellers expect. Physical nexus doesn't require crossing a sales threshold. Inventory in a warehouse is enough.
If you sell across multiple channels -- marketplace plus your own site plus wholesale -- each channel has its own compliance implications and none of them fully account for the others.
How TSTP reviews the full picture
We start by mapping your actual nexus footprint: FBA inventory locations, sales volume by state across all channels, marketplace sales that count toward thresholds, and any direct-channel activity. That review surfaces where you have current obligations, where past liability may have accumulated, and what needs to be addressed first.
For sellers with unaddressed back liability, a voluntary disclosure agreement is often the right path -- coming forward proactively with a limited lookback period rather than waiting for a state to find you first.
Find out what your marketplace setup means for your actual sales tax obligations.
Get started
Pro tip
Frequently asked questions
The requirement to collect sales tax depends on several factors:
- When selling on platforms without marketplace facilitator laws
- When you exceed economic nexus thresholds in various states
- For direct sales outside of marketplace platforms
- When selling products not covered by marketplace facilitator agreements
Managing multistate sales tax requires the following:
- Regular monitoring of sales thresholds in each state
- Proper registration when thresholds are met
- Understanding varying tax rates and product categories
- Maintaining compliant reporting systems
