Choosing Your Amazon Fulfillment Strategy in 2025
When selling on Amazon, your fulfillment choice—Fulfillment by Amazon (FBA) or Fulfillment by Merchant (FBM)—is one of the most consequential decisions you’ll make. It affects your fees, your Prime eligibility, your control over the customer experience, your inventory management complexity, and ultimately your profitability. In 2025, Amazon has made changes to both programs that shift the economics of this decision in important ways. This comprehensive comparison will help you understand which model—or which combination—is right for your specific business.
What Is Fulfillment by Amazon (FBA)?
With FBA, you send your inventory to Amazon’s fulfillment centers, and Amazon handles all aspects of storage, picking, packing, shipping, customer service, and returns on your behalf. When a customer orders your product, Amazon picks it from their warehouse, packs it in Amazon-branded packaging, ships it using their logistics network, handles any customer service inquiries, and processes any returns. You pay Amazon for storage space and fulfillment services, in addition to the standard referral fee on each sale.
What Is Fulfillment by Merchant (FBM)?
With FBM (also called MFN—Merchant Fulfilled Network), you store your own inventory and are responsible for picking, packing, shipping, customer service, and returns. When a customer orders, Amazon notifies you and you have a defined window to ship the order to the customer using the shipping method the customer selected. You only pay Amazon’s referral fee, but you incur your own storage, labor, and shipping costs. FBM sellers can achieve Prime eligibility through Seller Fulfilled Prime (SFP), though SFP has strict performance requirements.
FBA Advantages and Disadvantages
FBA Advantages
FBA’s primary advantages are automatic Prime eligibility (critically important for visibility and conversion), Amazon handling all post-purchase customer service and returns (freeing significant operational bandwidth), superior shipping speed that improves customer experience and reduces negative feedback, Buy Box advantage over FBM sellers on the same listing, and the ability to scale without proportional increases in operational complexity. For fast-moving products that require rapid scaling, FBA’s operational leverage is particularly valuable.
FBA Disadvantages
FBA fees can be substantial, particularly for large, heavy, low-value, or slow-moving products. Storage fees accumulate quickly for inventory that doesn’t turn over rapidly. Amazon’s removal requirements and aged inventory surcharges add risk for products with unpredictable demand. Minimum restocking requirements can create cash flow pressure. Loss of direct customer relationships since all post-purchase interactions are handled by Amazon. And Amazon’s commingling of inventory (mixing your products with identical products from other sellers) can expose you to counterfeit or damaged inventory issues if you don’t opt out.
FBM Advantages and Disadvantages
FBM Advantages
FBM eliminates FBA fulfillment fees and storage fees—you only pay Amazon’s referral fee plus your own actual fulfillment costs. This makes FBM economically superior for large/heavy products, slow-moving SKUs, products with high return rates, and situations where your own fulfillment costs are lower than FBA fees. FBM gives you complete control over packaging (enabling custom branded packaging that creates better customer experiences), direct control over inventory without Amazon commingling, and flexibility to fulfill from multiple warehouse locations to optimize delivery times.
FBM Disadvantages
FBM sellers without Prime status are significantly disadvantaged in the Buy Box compared to Prime-eligible listings. Without SFP or Prime eligibility, FBM listings receive considerably lower visibility and lower conversion rates from non-Prime customers. FBM requires significant operational infrastructure—warehouse space, picking and packing staff or processes, carrier relationships, and customer service capacity—that can be expensive to build and difficult to scale rapidly. Customer service and returns are your full responsibility, requiring dedicated time and processes.
FBA Fee Structure in 2025
Amazon’s FBA fee structure includes fulfillment fees (charged per unit based on dimensions and weight—typically ₹30–₹200+ for standard items in India), monthly storage fees (₹45–₹90 per cubic foot for standard-size items, higher for oversized), aged inventory surcharges (increasingly aggressive fees for inventory sitting in fulfillment centers for 181+ days), and removal order fees if you need to retrieve unsold inventory. Calculate your exact FBA fees using Amazon’s Revenue Calculator before enrolling new products to ensure the economics work for your specific items.
Seller Fulfilled Prime (SFP): The Best of Both Worlds?
Seller Fulfilled Prime allows qualified merchants to display the Prime badge on their FBM listings by meeting Amazon’s strict Prime shipping performance requirements—typically same-day or next-day delivery for Prime customers from your own warehouse. SFP can be the optimal solution for sellers with efficient fulfillment operations and sufficient shipping infrastructure, capturing Prime’s conversion benefits while maintaining control over inventory and potentially achieving lower fulfillment costs than FBA for suitable product types.
The Hybrid Strategy: Using Both FBA and FBM
Many sophisticated Amazon sellers use a hybrid approach—assigning each product to FBA or FBM based on that product’s specific economics and velocity. A common hybrid strategy sends fast-moving, high-velocity items to FBA (where rapid turnover prevents storage fee accumulation and FBA’s speed advantages maximize sales velocity) while maintaining FBM for slow-moving, large/heavy, or low-margin items where FBA fees would erode profitability. During periods of FBA inventory restrictions or Amazon fee changes, having FBM capability as a backup also provides important operational resilience.
Making the Decision: A Framework
Use this framework to evaluate each product: Calculate FBA fees (fulfillment + expected storage based on your inventory turn rate + expected returns) and compare to your own fulfillment cost (shipping + packaging + labor + customer service allocation). If FBA is more expensive, consider FBM. If FBA is comparable or cheaper, consider the Prime eligibility and operational convenience benefits. For new products with uncertain demand, starting with FBM to validate sales velocity before committing inventory to FBA is often prudent. Once you’ve proven consistent sales velocity, transitioning to FBA can accelerate growth by unlocking Prime visibility.
Conclusion: The Right Answer Depends on Your Specifics
There is no universally correct answer to the FBA vs. FBM question—the right model depends on your specific products, fulfillment costs, operational capabilities, and business goals. The sellers who optimize this decision based on data rather than assumption—calculating actual fees, measuring actual fulfillment costs, and monitoring performance metrics—consistently outperform those who simply default to one model without analysis. Revisit your fulfillment model decisions regularly as your business evolves and Amazon’s fee structures change.