Buy products cheap (retail clearance, wholesale, or private-label), send them to Amazon's warehouses, and resell at a markup via Fulfillment by Amazon. Marketed endlessly as a beginner side hustle, included as an honest low-fit benchmark because fees, competition, and Amazon's total control make the margins brutal.
Difficulty
MediumStartup Cost
Medium$2,000 – $15,000Market Size
MassiveAmazon's marketplace is enormous, but seller margins are squeezed every year by rising fees, fierce competition, and Amazon's own private-label products.Competition
HighTime to Profit
Often net-negativeMarket timing
Be honest about the timing: Amazon FBA was a genuine opportunity around 2015; today it's saturated and squeezed. Amazon raised seller fees repeatedly, launched its own private-label products that compete directly with top sellers, and tightened policies that can suspend your account overnight. Chinese manufacturers now sell direct on the platform at prices a US reseller can't match. This sits in the catalog as an honest low-fit benchmark, proof that a massive marketplace and a popular 'side hustle' label do NOT equal good founder fit when the platform owner controls your fees, your visibility, and your account, and takes a cut of everything.
Weak fit
Tough fit overall, low competition is the main sticking point to work through.
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Go Pro · $1 for 7 daysEach dimension is rated 1–5 where 5 is most favorable for a solo founder.
Amazon controls everything. They set fees, control visibility, hold your funds, and can suspend your account with no appeal, your entire business sits on rented land.
Capital tied up in inventory you might not sell. Unlike dropshipping, you buy stock upfront; dead inventory means storage fees and losses.
No moat and no customer relationship. Buyers are Amazon's customers, not yours; you can't email them, build loyalty, or escape the fee structure. You're a commodity supplier to a monopoly.
See all 3 reasons this idea fails
Go Pro · $1 for 7 daysAmazon sees your sales data and launches its own competing version of any product that sells well, you're competing with your own landlord.
They cut out the reseller entirely and list directly on Amazon at prices you can't beat.
Any profitable product attracts dozens of copycats who compete only on price, eroding margins to nothing.
See pricing & weaknesses for all 3 competitors
Go Pro · $1 for 7 daysAmazon shoppers who buy on price and Prime convenience, with zero loyalty to you as a third-party seller, they see the product, not your brand.
Markup over your cost of goods, minus Amazon's referral fees (~15%), FBA fulfillment fees, storage fees, and ad costs. What's left is thin and shrinking.
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Go Pro · $1 for 7 daysBased on ~$12/mo avg revenue per buyer for this type of business. Estimates assume steady monthly effort.
Where your first customers realistically come from:
For product and store-shaped businesses, Shopify is the category default. Launch a real storefront in days, take payments out of the box, and skip the custom build entirely.
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An online store that sells products shipped directly from a supplier (often AliExpress), so you never hold inventory. Heavily marketed by 'passive income' gurus as easy money, included here as an honest low-fit benchmark, because the model is now saturated, margin-thin, and brutally ad-dependent.
Buy, refurbish, and resell a focused category of used electronics (e.g. retro game gear or pro audio) with warranties.
Sell print-on-demand apparel and accessories around one passionate niche or community, with zero inventory.