How to Buy an Amazon FBA Business: The Complete Playbook

How an FBA business actually makes money

The model is a spread. You buy a product at a landed cost, list it on the marketplace, and keep what remains after referral fees, fulfilment fees, storage, returns, and advertising. Because the platform handles logistics, the operating work reduces to three things: keeping stock available, keeping listings ranked, and reordering at the right time. That is genuinely less day-to-day work than almost any physical business.

Three consequences follow for a buyer. First, ranking and reviews are the moat, and both are earned rather than bought. A listing with years of review history and a stable rank is defensible in a way that a new listing is not, which is precisely why buying an established brand can beat launching one. Second, advertising spend is the margin dial, and it hides things. A brand where organic sales carry the rank is a much better asset than one where profit only exists because ad spend was throttled back the quarter before sale. Third, cash conversion is brutal. Inventory is paid for months before it sells, so growth consumes cash. A profitable FBA business can still run out of money by growing too quickly.

The better acquisitions tend to look alike: several products contributing meaningfully, a real trademark and Brand Registry protection, a supplier relationship with history, non-seasonal demand, and a product that is neither fragile, oversized, nor easy to duplicate from the same factory by a competitor.

What does it cost to buy an FBA business?

Pricing is a multiple of trailing seller's discretionary earnings, with inventory added on top:

• Small single-product brands — a few thousand dollars a month in earnings, one or two SKUs, often no trademark. These trade in the five figures, and the multiple reflects how fragile a one-product business is.
• Established multi-product brands — several SKUs contributing, registered trademark, Brand Registry, documented supplier terms, and a couple of years of history. These sit in the six to low-seven figure range and represent most marketplace inventory.
• Aggregator-grade brands — category-leading listings, deep review moats, off-Amazon channels, and staff. These command premium multiples because the brand has value that is not purely a function of one marketplace's search results.

The adjustment that matters most is to underwrite normalized earnings, not the best twelve months. Ask specifically what advertising spend did over the last two years, whether any period benefited from a competitor being out of stock, and how much of the earnings history is genuinely repeatable. Then price the deal through our business valuation guide and calculator using the earnings figure you actually believe.

Then budget the cash the multiple does not cover. Saleable inventory is normally purchased at the seller's landed cost on top of the purchase price and trued up at closing. Beyond that, you need working capital for the next purchase order, which typically has to be placed before the acquired inventory has sold through. Underfunding that second order is one of the most common ways a sound FBA acquisition goes wrong in its first six months, because a stockout costs rank, and lost rank costs far more than the missed sales.

Financing an FBA acquisition

• Cash plus seller financing — the common structure. A held note keeps the seller engaged through the account transfer and supplier introductions, which is exactly where these deals succeed or fail; see our seller financing guide.
• Earnouts — well matched to platform risk, because they let you defer part of the price until the listings have demonstrably survived the transfer and the following quarter.
• SBA 7(a) — available in principle for US-domiciled businesses with a US buyer, and inventory gives a lender something to secure, but platform concentration makes underwriting harder than for asset-backed Main Street deals. Our SBA acquisition-loan guide covers the process.
• Inventory and purchase-order financing — a separate facility used to fund restocking rather than the acquisition itself. Keeping this distinct from the acquisition debt is what protects you from a stockout when cash is tight.

What to inspect before you buy

• Seller Central data at the source — screen-share into the account and pull settlement reports, order reports, and fee breakdowns yourself rather than accepting exported summaries. Reconcile marketplace payouts to the bank.
• Profit by SKU — net of all fees, advertising, and returns, for at least twenty-four months. This is the single most revealing document in an FBA deal, because it shows whether you are buying a brand or one product wearing a brand's name.
• Account health history — policy warnings, suspensions, intellectual-property complaints, restricted-product flags, and any performance notifications. A history of suspensions is material even when the account is currently healthy.
• Trademark and Brand Registry — confirm the trademark is registered, in the right classes, actually owned by the selling entity, and transferable. Brand Registry is the practical defence against listing hijackers and its absence changes the risk profile substantially.
• Supplier relationship — who manufactures the product, how long the relationship has run, what the terms and lead times are, whether any exclusivity exists, and critically whether the same factory sells the same product to competitors. Speak to the supplier before closing, with the seller's cooperation, and confirm they will continue under new ownership.
• Inventory position — units on hand at the fulfilment centres, units in transit, aged and unsaleable stock, and open purchase orders. Agree how each category is valued at closing before you are at the closing table.
• Advertising history — spend, sales attributed to advertising, and the ratio between them over time. Look specifically for a reduction in spend shortly before the business was listed, which flatters earnings while quietly eroding rank.
• Rank and review trajectory — where the main listings rank, how review count and rating have moved, and whether review velocity is rising or falling. A declining rating on the flagship SKU is the clearest early warning in this category.
• Product liability and compliance — category-specific safety or regulatory requirements, testing documentation, product liability insurance, and any recall or safety complaint history. Some categories carry obligations that a casual seller may not have met.
• Transfer mechanics — decide early whether this is an entity purchase or an asset purchase, because it changes the diligence, the liabilities you inherit, and the operational risk during handover. Use advisers who have closed marketplace deals specifically.
• Off-Amazon assets — a direct-to-consumer store, email list, social accounts, or other marketplace channels. These reduce platform concentration and are frequently undervalued by sellers who treat them as an afterthought.

Run all of it alongside the general business due diligence checklist, and follow the overall process in how to buy a business.

Pros and cons

Ready to look at listings?

FBA brands trade through online-business marketplaces and specialist brokers rather than the Main Street channels, and the same brand is frequently listed in more than one place. Inventory turns quickly at the lower end, so it pays to have financing arranged and a diligence checklist ready before you find a listing you want. Compare the marketplace routes in our guide to online businesses for sale.

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