Amazon is a reseller on some transactions and a marketplace platform on others. When you buy a product listed as “Ships from and sold by Amazon.com,” Amazon purchased that item from a manufacturer or distributor and is reselling it directly to you. But the majority of units sold on Amazon actually come from independent third-party sellers who list their own inventory on the platform, making Amazon the middleman rather than the reseller in those cases.
Understanding which role Amazon plays on any given purchase matters for returns, warranties, pricing, and even sales tax. Here’s how the two sides of Amazon’s business actually work.
When Amazon Is the Reseller
Amazon buys products wholesale from brands and manufacturers, warehouses them, sets the retail price, and sells them directly to customers. This is called first-party (1P) retail, and it works the same way any traditional retailer operates. Target buys cereal from General Mills and sells it on its shelves. Amazon does the same thing, just online.
You can spot these transactions on a product page by looking for the line “Ships from and sold by Amazon.com.” That language means Amazon owns the inventory, handled the pricing decision, and is the legal seller of record. If something goes wrong with the order, your relationship is with Amazon, not a third party.
Amazon also manufactures and resells its own products through more than 100 private label brands. AmazonBasics and Pinzon launched in 2009 as the company’s first in-house lines, covering everyday household goods. Since then, Amazon has expanded into food, clothing, electronics, and automotive accessories under dozens of brand names that don’t always carry the Amazon name. Echo and Kindle are the most recognizable, but many shoppers don’t realize that brands like 206 Collective (footwear) or Solimo (household essentials) are Amazon-owned.
When Amazon Is the Marketplace
On the other side of the business, Amazon operates as a platform where independent sellers list and sell their own products. These third-party sellers set their own prices, manage their own inventory (or pay Amazon to store and ship it), and are the actual sellers of the product. Amazon takes a referral fee, typically a percentage of the sale price, for providing access to its customer base.
Third-party sales make up a significant share of total units sold on the platform. When a product page reads “Fulfilled by Amazon and sold by [store name],” a third-party seller owns that product. “Fulfilled by Amazon” (FBA) means the seller shipped inventory to an Amazon warehouse and Amazon handles packing, shipping, and customer service on the seller’s behalf. But the seller, not Amazon, is the merchant of record.
Some third-party sellers handle their own shipping entirely, in which case you’ll see “Ships from and sold by [store name].” In that scenario, Amazon is purely a listing platform, similar to how eBay connects buyers and sellers.
How to Tell Who’s Actually Selling
Every Amazon product page includes seller information, usually located near the “Add to Cart” button or in the product details section. Look for these labels:
- “Ships from and sold by Amazon.com” means Amazon is the reseller. It bought the product and is selling it to you.
- “Fulfilled by Amazon, sold by [store name]” means a third-party seller owns the product but Amazon is handling shipping and returns from its warehouse.
- “Ships from and sold by [store name]” means a third-party seller is handling everything, and Amazon is just the platform.
This distinction matters most when you need to make a return, file a warranty claim, or dispute a product’s authenticity. When Amazon is the seller, its standard return policy applies directly. When a third party is the seller, return terms can vary, though FBA sellers generally follow Amazon’s policies because Amazon handles the logistics.
Why the Dual Role Matters
Amazon’s position as both the marketplace operator and a competing seller on that same marketplace has drawn serious scrutiny. The Federal Trade Commission, along with 18 state attorneys general and Puerto Rico, filed a lawsuit alleging that Amazon illegally maintains monopoly power through anticompetitive strategies. The complaint, filed in the Western District of Washington, argues that Amazon’s practices prevent rivals and its own third-party sellers from lowering prices, degrade the shopping experience, overcharge sellers through fees, and block fair competition.
For shoppers, the practical concern is simpler. Amazon can see what sells well on its platform, then introduce competing private label products or undercut third-party sellers on price. When the same company runs the marketplace and competes inside it, the playing field isn’t neutral.
Sales Tax and Amazon’s Facilitator Role
For tax purposes, Amazon functions as what most states call a “marketplace facilitator.” This means Amazon is legally required to collect, report, and remit sales tax on behalf of third-party sellers for transactions that happen on its platform. The seller doesn’t collect the tax separately; Amazon handles it at checkout.
This applies whether Amazon is the direct reseller or just hosting a third-party sale. From your perspective as a buyer, sales tax shows up the same way regardless of who the seller is. But the legal mechanics are different. When Amazon sells its own inventory, it collects tax as the retailer. When a third party sells through the platform, Amazon collects tax as the facilitator, essentially acting as the tax agent for someone else’s sale.
Third-party sellers in most states still need their own sales tax permits and must file returns, even if Amazon is handling collection. Remote sellers whose only sales go through a marketplace facilitator that has certified it will collect tax on their behalf may be exempt from holding a state tax permit, but the rules vary.
The Short Answer
Amazon is a reseller on a portion of its transactions, where it buys inventory and sells it at retail. It is a marketplace platform on the rest, where independent sellers use Amazon’s infrastructure to reach customers. And it is a product manufacturer through its private label brands. No single label captures the full picture. The next time you’re shopping on Amazon, check the seller line on the product page to know exactly who you’re buying from.