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Marissa Incitti
Marissa Incitti leads research and content at Feedvisor focused on Amazon, Walmart, and the broader e-commerce marketplace ecosystem. Her work covers retail media performance, pricing strategy, and how AI-driven discovery is reshaping how brands compete across marketplaces. Prior to Feedvisor, she worked in content leadership roles at a Fortune Global 500 omnichannel commerce technology company.
Amazon Marketplace: How It Works, Seller Plans, and Fulfillment Options (2026)
Published: February 27, 2017
Last updated: June 10, 2026
The Amazon Marketplace is the third-party selling platform embedded within Amazon.com, where independent businesses list and sell products directly to customers using Amazon’s infrastructure - payment processing, customer trust, and optionally its fulfillment network. Amazon earns fees on each transaction rather than owning the inventory itself.
As of Q4 2025, third-party sellers account for 61% of paid units sold on Amazon, up from roughly 40% a decade ago. That shift fundamentally changed what the Marketplace is. It’s no longer a secondary channel next to Amazon’s own retail - it is the primary commerce engine.
Table of Contents
- How the Amazon Marketplace Works
- Individual vs. Professional Seller Plans: The Fee Math
- Fulfillment Options: FBA, FBM, and SFP
- The Featured Offer (Formerly the Buy Box)
- Payment Disbursement: When You Get Paid
- Amazon Marketplace Scope in 2026
- FAQ
How the Amazon Marketplace Works
The buyer experience is deliberately simple: one product page, one “Add to Cart” button, one checkout. What’s happening underneath is more complex. Amazon aggregates listings from multiple sellers - including its own retail division - onto a single ASIN (product detail page). Buyers rarely see seller names until they look for them.
Here’s what the transaction flow actually looks like in 2026:
- Sellers list products - either creating new ASINs or joining existing ones
- Amazon selects one offer as the Featured Offer (the default “Add to Cart” and “Buy Now” path)
- Buyers purchase using Amazon’s checkout - no direct financial contact with the seller
- Amazon collects payment and absorbs the fraud risk, then notifies the seller
- The order is fulfilled - either by Amazon (FBA) or the seller (FBM/SFP)
- Funds are disbursed to the seller’s linked bank account; under DD+7, cash typically lands 7-21 days after shipment
One detail that surprises new sellers: you don’t choose your own customers and you don’t invoice them. Amazon sits in the middle of every transaction - which also means Amazon controls the cash timing. Build that float into your inventory buy cycles.
Individual vs. Professional Seller Plans: The Fee Math
The original description of an Individual account as having “no cost to the seller” is wrong, and that mistake costs sellers real money.
| Plan | Monthly Fee | Per-Item Fee | Break-Even |
|---|---|---|---|
| Individual | $0 | $0.99/unit sold | – |
| Professional | $39.99 | $0 | 41+ units/month |
The math: at 40 units/month, the Individual plan costs $39.60 in per-item fees - essentially the same as Professional. Sell 41 units, and Professional is already cheaper. For any seller with consistent volume, the $39.99/month is effectively free after the first 40 units.
But the fee comparison isn’t actually the main reason to choose Professional. The Individual plan locks you out of Featured Offer eligibility, Amazon Advertising, bulk listing tools, and Selling Partner API access. Even if you plan to sell only 30 units a month, losing access to Sponsored Products alone can cost more than the $9.70 you’d save on plan fees.
If you’re not planning to run ads and don’t care about the Featured Offer, Individual works for moving fewer than 40 items a month. Otherwise, start with Professional - the friction of upgrading later isn’t worth the early savings.
The Professional Seller Account article covers the full feature set; the Individual Seller Account details the edge cases where Individual makes sense.
Fulfillment Options: FBA, FBM, and SFP
The original article said nothing about fulfillment, which was the right omission in 2005 and the wrong one in 2026. How you fulfill orders is now one of the most consequential decisions you make on the platform - it directly affects your Prime eligibility, Featured Offer odds, and per-unit economics.
Fulfillment by Amazon (FBA)
You ship inventory to Amazon’s fulfillment centers. Amazon stores it, picks, packs, ships, handles customer service, and processes returns. Your listings become Prime-eligible.
The advantages are real: Prime eligibility improves conversion rates and gives you an algorithmic edge for the Featured Offer. The tradeoffs are real too. FBA fees increased in 2026 by an average of $0.08 per unit, with larger increases on small items priced above $50 (+$0.51/unit). Add storage fees, and FBA has a floor below which margins disappear.
A rough rule of thumb: FBA tends to make sense for products with at least a 30% gross margin before fees, steady sales velocity (to avoid long-term storage charges), and product dimensions that fall within standard-size tiers. The fee math changes meaningfully by size tier - run the numbers with the Amazon FBA Calculator before committing inventory. Detailed cost comparisons are in the FBA vs FBM article.
Fulfillment by Merchant (FBM)
FBM is a margin play. You handle storage, packing, shipping, and returns yourself - which means no FBA fees, but you absorb the logistics cost and operational load. About 30% of Amazon sellers use FBM for at least some of their catalog, typically for oversized, heavy, or slow-moving products where FBA storage fees would eliminate the margin.
The Prime badge gap is the hard part. Without it, conversion suffers on most categories. FBM sellers can still win the Featured Offer, but it requires flawless performance metrics (low Order Defect Rate, on-time delivery) and often a price advantage over FBA competitors. If you can’t sustain on-time shipping without absorbing expedited freight costs, that price advantage evaporates. Full setup requirements are in the Fulfillment by Merchant (FBM) article.
Seller Fulfilled Prime (SFP)
SFP lets you earn the Prime badge while shipping from your own warehouse or 3PL. Buyers see it as Prime; you control the fulfillment. The catch: Amazon holds you to strict performance thresholds - on-time delivery rates, carrier approval requirements, and 1-2 day shipping to a high percentage of customers. Miss those targets and the badge disappears immediately, with re-enrollment not guaranteed.
SFP only makes sense if your logistics operation can sustain those metrics consistently. Most sellers with high-volume, standard-size products are better served by FBA. The exceptions: hazmat categories, restrictive packaging requirements, or products needing custom kitting - situations where getting into Amazon’s fulfillment network creates more problems than it solves. Enrollment thresholds are at Seller Fulfilled Prime (SFP).
Starting January 2026, Amazon no longer handles FBA prep and labeling for US inbound shipments - sellers must manage this upstream with their manufacturer or a prep 3PL.
Not sure whether FBA or FBM is right for your catalog? Feedvisor’s AI-powered repricing and fulfillment analytics help sellers optimize which products go where - and at what margin. See how it works →
The Featured Offer (Formerly the Buy Box)
On most shared ASINs, roughly 75-82% of orders route through the Featured Offer - the single “Add to Cart” button that Amazon surfaces as the default buying path. Amazon rebranded this from “Buy Box” to “Featured Offer” in 2023, though the industry still uses both terms. If you’re not winning it, you’re competing for what’s left.
To be eligible, you need a Professional account, a competitive landed price (item + shipping), an Order Defect Rate below 1%, and adequate inventory. FBA and SFP sellers have a structural advantage because Amazon can guarantee the delivery speed it’s promised to Prime customers.
Price matters - being significantly above the competitive price point loses the Featured Offer immediately, while matching it doesn’t guarantee you’ll win it. Most winning strategies combine competitive pricing with FBA. If you’re relying on manual pricing to hold the Featured Offer on shared ASINs, you’re already falling behind sellers using automated repricers. The full eligibility breakdown is at Amazon Buy Box.
Payment Disbursement: When You Get Paid
Starting March 12, 2026, Amazon moved all sellers to the Delivery Date + 7 (DD+7) program. Funds are held until 7 days after confirmed delivery of an order, then released in the standard bi-weekly disbursement cycle. Amazon also retains a reserve buffer for potential returns, A-to-Z claims, or disputes - the exact amount depends on your account history and risk profile.
Practically speaking: a delivered order might wait 7 days for the reserve-release calculation to begin, then another week until the next disbursement runs. For a seller doing $200K/month in revenue, having two or three weeks of sales in reserve is a significant working capital constraint. New sellers and accounts with elevated claim rates face higher initial reserves.
There is an Express Payout option for eligible sellers (daily payouts to a linked bank account), though not all accounts qualify. Check Seller Central under Payments for your eligibility.
Amazon Marketplace Scope in 2026
The Marketplace is not one global storefront - it’s 22 separate country-specific marketplaces, each with its own seller registration, product catalog, tax requirements, and fulfillment infrastructure. North America (US, Canada, Mexico), Europe (10 countries including UK, Germany, France), MENA (UAE, Saudi Arabia, Egypt), Asia-Pacific (Japan, Australia, India, Singapore), and South America (Brazil).
Third-party sellers account for over 60% of units sold across all these markets. The US remains dominant, but India is Amazon’s fastest-growing market, and the UAE is consistently cited as the lowest-friction MENA entry point - easier onboarding and fewer category restrictions than other MENA markets.
The “more than 60 countries” figure in older descriptions reflected shipping destinations, not separate marketplace infrastructure. Amazon ships to far more countries than it runs dedicated seller onboarding and tax compliance systems for - a distinction that matters if you’re evaluating international expansion.
FAQ
What is the difference between Amazon Retail and the Amazon Marketplace? Amazon Retail (1P, or “first-party”) is where Amazon buys wholesale from brands and sells products under its own name. The Amazon Marketplace (3P, or “third-party”) is where independent sellers list and sell directly to customers, with Amazon taking a fee. A single product page can have both Amazon Retail and third-party offers competing for the Featured Offer.
How much does it cost to sell on the Amazon Marketplace? At minimum: a selling plan ($0.99/item for Individual; $39.99/month for Professional) plus referral fees (typically 8-15% of the sale price, depending on category). Add FBA fees if using Amazon’s fulfillment, and advertising spend if running Sponsored Products. See Referral Fee for category-specific rates.
Can a new seller win the Featured Offer? Yes, but the bar is high. You need a Professional account, competitive pricing, solid performance metrics, and sufficient inventory. FBA makes it significantly easier for new sellers because Amazon controls the fulfillment quality. For a full breakdown, see Buy Box-Eligible.
What is the difference between FBA and FBM? FBA: you send inventory to Amazon’s warehouses; Amazon handles everything, and you get the Prime badge. FBM: you store and ship orders yourself - no FBA fees, more operational control, but no built-in Prime eligibility. For most standard-size products with consistent volume, FBA wins on conversion. FBM wins on margin for slow-moving or oversized inventory. Full comparison at FBA vs FBM.
How do Amazon Marketplace payments work? Amazon collects payment from buyers, deducts fees and any reserves, then disburses the remainder bi-weekly under the DD+7 program (funds held 7 days after delivery confirmation). New accounts face higher initial reserve holds. The Express Payout option offers daily disbursements for eligible sellers.
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