How to Buy an Amazon FBA Business: 8-Step Acquisition Guide

Amazon FBA businesses — where products are stored, picked, and shipped by Amazon — can generate strong margins with minimal fulfillment overhead. But FBA acquisitions come with unique structural complexity: Amazon seller accounts cannot be transferred directly, Brand Registry requires separate trademark transfer, and PPC campaigns must be rebuilt in the new account. This guide walks through every step of an FBA business acquisition, from evaluating the ASIN portfolio to verifying Account Health and completing the seller account transition. See also: how to buy an eCommerce business, eCommerce valuation multiples guide, and eCommerce due diligence checklist.

1. 1

   Understand how FBA businesses work and what you are actually buying

   In a Fulfillment by Amazon (FBA) business, the seller ships products to Amazon's warehouses; Amazon handles storage, packing, shipping, returns, and customer service. The business owner's job is product selection, supplier management, and advertising (Amazon PPC). You are not buying an Amazon account — you are buying: a product catalog (ASIN portfolio), supplier relationships, advertising campaign data, brand assets (potentially including a registered trademark and Brand Registry enrollment), and an existing sales history with reviews. The non-transferability of the Amazon seller account itself is the single most important structural fact about FBA acquisitions — it shapes the entire deal structure, from how you take over operations to how you handle Brand Registry and PPC campaigns.

2. 2

   Choose your deal structure: asset purchase or entity purchase

   Because Amazon seller accounts cannot be transferred, FBA buyers have two structural options. Asset purchase: You create a new Amazon seller account, and the seller lists the same ASINs in your account (since ASINs belong to Amazon's catalog, the existing reviews transfer because they are tied to the ASIN, not the account). The seller provides supplier contacts, product sourcing data, and advertising history; you recreate PPC campaigns in your new account. This typically causes a 2-4 week revenue dip as campaigns rebuild performance data. Entity purchase (stock sale): You purchase the seller's legal entity (LLC or corporation), inheriting the Amazon account, active PPC campaigns, Brand Registry enrollment, and account performance history intact. Entity purchases are cleaner operationally but carry more legal complexity — you inherit the entity's liabilities, tax history, and any undisclosed issues. For businesses above $150,000 where Brand Registry is active, an entity purchase is often preferable. For smaller businesses without Brand Registry, an asset purchase is simpler.

3. 3

   Find Amazon FBA businesses for sale

   Browse eCommerce listings on Buy Sites Direct, looking for FBA and Amazon businesses with documented product portfolios and revenue history. Each listing enables direct contact with the seller — no broker fees. When evaluating initial listings, look for: at least 12 months of revenue history (preferably 24 months to capture seasonality), the number of active ASINs and the revenue distribution across them (single-ASIN businesses are higher risk), a stated BSR range for key products, gross margin after COGS and FBA fees, and whether the business has Brand Registry enrollment. Be cautious of listings that only show Seller Central screenshots without cross-referencing them against payment processor deposits — Seller Central can be manipulated more easily than bank statements.

4. 4

   Evaluate the ASIN portfolio and BSR trajectory

   The ASIN portfolio is the core asset. For each ASIN generating more than 10% of revenue, analyze: (1) BSR trend over the trailing 12 months using Keepa or Helium 10 — a consistently improving or stable BSR indicates organic demand and listing health; a deteriorating BSR signals increasing competition, review problems, or declining demand; (2) Review count and rating — a product with 200+ reviews and a 4.2+ star rating has a meaningful review moat; a product with under 50 reviews is highly vulnerable to new entrants; (3) Listing quality — title, bullet points, images, and A+ Content should be optimized; poor listings leave conversion rate on the table and represent a post-acquisition improvement opportunity; (4) Category and sub-category — some Amazon categories are gated (require approval), restricted to certain sellers, or subject to frequent policy changes; verify the buyer can sell in the relevant categories with their new account.

5. 5

   Analyze ACOS, PPC campaigns, and advertising dependency

   Request read-only access to Seller Central's advertising console. Analyze: Blended ACOS (total ad spend divided by total ad-attributed revenue) — a healthy FBA business has blended ACOS well below the product gross margin. If gross margin is 40% and blended ACOS is 38%, advertising is barely profitable. Target ACOS under 25% for products with 40%+ gross margin. ACOS trend — rising ACOS over 6+ months signals increasing competition and should compress the multiple. Revenue breakdown — what percentage of total revenue is organic (from BSR/search ranking with no ad click) vs. PPC-attributed? A business generating 60%+ of revenue organically has a more defensible model. Campaign structure — are there campaigns for all key product keywords, or is the seller relying on automatic campaigns only? Under-optimized PPC represents a post-acquisition improvement opportunity.

6. 6

   Complete financial due diligence and revenue verification

   Never rely on Seller Central screenshots alone. Request: (1) Seller Central account access (screenshare or read-only login) to verify orders, revenue, returns, and refund rates; (2) Payment processor statements — Seller Central disburses to a bank account every 2 weeks; request 12 months of bank statements showing Amazon disbursements; (3) FBA fee history — Amazon's FBA fees (fulfillment, storage, referral) are deducted before disbursement; verify what fee rates apply to each ASIN; (4) COGS documentation — supplier invoices for the trailing 12 months to verify cost of goods; (5) Account health metrics — screenshare access to the Account Health dashboard to verify ODR, late shipment rate, and any policy violations. Reconcile: Seller Central gross sales minus returns minus FBA fees minus PPC spend minus COGS should approximate the reported SDE.

7. 7

   Negotiate price and structure the deal

   FBA businesses typically trade at 28-45x monthly SDE, with the multiple driven by BSR stability, ACOS efficiency, product diversification, gross margin, review count, and account health. For businesses with strong organic BSR, multiple products, ACOS under 20%, and 200+ reviews per ASIN, the top of the multiple range (40-45x) is achievable. For businesses relying heavily on PPC with a single ASIN and rising ACOS, 28-34x is more appropriate. Negotiate transition support: require a 60-90 day transition period with the seller to cover: recreating PPC campaigns in the new account, performing supplier introductions, transferring any Brand Registry enrollment (or trademarks, if applicable), and knowledge transfer on product sourcing and inventory management. For entity purchases, have an M&A attorney review the purchase agreement to assess liabilities inherited with the entity.

8. 8

   Complete the transfer

   FBA business transfer checklist: (1) New Amazon seller account — create a new professional selling account (the old account cannot be transferred); have the seller invite your new account to list the same ASINs; (2) Supplier introductions — written introductions to all key suppliers, plus transfer of any negotiated pricing agreements or exclusivity terms; (3) Inventory — existing FBA inventory may be included in the purchase price or sold separately; negotiate inventory valuation and ownership transfer terms in the APA; (4) Brand Registry — if doing an asset purchase, initiate trademark transfer (USPTO assignment) and re-enroll the trademark with your new seller account; if doing an entity purchase, ensure the account credentials are formally changed to your control; (5) PPC campaigns — seller exports campaign structure and keyword data; you recreate in your new account and run both accounts in parallel for 2-4 weeks if possible; (6) Product sourcing data — supplier contact list, MOQ terms, lead times, and any sample agreements; (7) Legal — finalize the APA with a complete asset schedule covering all ASINs, brand assets, trademarks, and supplier agreements.