Marketplace Facilitator Tax

Definition

A marketplace facilitator is a platform that facilitates retail sales by third-party sellers and is, by state law, responsible for collecting and remitting sales tax on those sales. The category includes Amazon, Walmart Marketplace, eBay, Etsy, TikTok Shop, Wayfair, and most other large multi-seller platforms.

Under marketplace facilitator laws, the facilitator (not the seller) is the party that calculates the right sales tax on each transaction, collects it from the buyer, and remits it to the state. The seller, in most cases, is removed from the sales tax filing obligation for those sales.

History and status

Marketplace facilitator laws spread rapidly after the 2018 South Dakota v. Wayfair Supreme Court decision, which let states require remote sellers to collect sales tax. States quickly realized that requiring individual sellers to register and file in 50 jurisdictions was unworkable; requiring the marketplaces to do it was much cleaner.

By the end of 2024, all 45 states with a sales tax had a marketplace facilitator law in effect. The District of Columbia is included. The five states without a state-level sales tax (Alaska, Delaware, Montana, New Hampshire, Oregon) don't apply.

What this means for your books

For sales made through a marketplace facilitator: the sales tax flows through your books as a net-zero transaction. Money collected from the buyer that you don't owe to the state, because the marketplace remits.

The clean accounting treatment: gross sales include the pre-tax sale amount. Sales tax collected by the facilitator is recorded as both a payable and a remittance in the same period, netting to zero. Your sales tax payable account at month-end should not carry a balance for marketplace-facilitated sales.

The dirty version (which catches many sellers): the sales tax sits in your payable account, never gets reduced, and the books carry a growing phantom liability for years. The fix is a periodic journal that removes marketplace-facilitated sales tax from the payable.

What you still file on

Marketplace facilitator laws don't eliminate sales tax filing for sellers. They narrow what you file on. You're still responsible for:

• Direct DTC sales through your own checkout (Shopify own checkout, WooCommerce, your own site). You collect, you file, you remit.
• Wholesale sales to non-reseller customers (rare, but applies if you sell directly to a non-exempt buyer).
• Returns and exemption certificate filing for resale-exemption customers in some states.
• Informational reporting in a handful of states that require sellers to report marketplace-facilitated sales as part of their return, even though no tax is owed.

The filing footprint for a marketplace-only seller has narrowed dramatically. But it hasn't disappeared.

Nexus still applies, just for different reasons

You still have sales tax nexus in states where you hold inventory (your FBA states, your 3PL state, your home warehouse state). Nexus drives registration requirements, even if the marketplace handles the collection.

In some states, you must still register with the state revenue department because you have physical nexus, even if you have no direct sales there. In other states, you only register if you have direct sales.

State-by-state nexus and registration rules are still the most fragmented part of ecommerce sales tax. Consult a sales tax specialist (TaxJar, Avalara, or a CPA who handles ecommerce) before registering anywhere new.

How ConnectBooks handles it

ConnectBooks separates marketplace-facilitator sales tax from self-collected sales tax automatically. The Amazon, Walmart, eBay, and TikTok Shop integrations flow facilitated sales tax through a net-zero journal. The Shopify integration distinguishes between Shop Pay (facilitated in many states) and own-checkout (self-collected) and books accordingly.

The result: your Sales tax payable account on the balance sheet reflects only the sales tax you still owe to states. The state filings are calculated from the right base.

Related terms

• Nexus: The legal connection that triggers sales tax registration in a state.
• Economic nexus: Nexus triggered by sales volume or transaction count, independent of physical presence.
• Sales tax registration: The process of getting authorized to collect and remit sales tax in a state.
• Marketplace facilitator: A platform legally responsible for collecting and remitting sales tax on third-party seller transactions.