Amazon FBA vs Seller Fulfilled: The India Call

Ask ten Indian sellers whether to use FBA and nine will say yes without checking their own numbers. FBA is a strong default, but default is not the same as correct. The right fulfilment model is a per product decision that turns on three things: your margin, your weight and size, and your return rate. Get it wrong and you either bleed margin on FBA fees or lose the buy box on slow self shipping.

What each model actually gives you

Fulfilment by Amazon means you send stock into Amazon’s fulfilment centres. Amazon stores it, picks it, packs it, ships it, and handles customer returns. In exchange you pay fulfilment fees by weight and size, plus storage fees that rise the longer stock sits. The payoff is the Prime badge, a materially stronger buy box position, and delivery speed you cannot match alone.

Seller fulfilled means you hold the stock and ship each order yourself or through a courier. You keep control of packaging, inserts, and returns inspection. You avoid Amazon’s storage and handling fees. But you also carry the delivery performance risk, and without fast, reliable dispatch you will not hold the buy box against an FBA competitor.

Between these sit two India specific options. Easy Ship lets you store and pack while Amazon collects and delivers. Seller Flex and Seller Fulfilled Prime let qualifying sellers earn the Prime badge from their own warehouse under strict service rules. Most brands ignore these middle paths and jump straight to full FBA, which is often the wrong move for their catalogue.

The three questions that decide it

Run every ASIN through these three questions before you commit.

• What is the margin per unit in rupees. FBA fees are close to fixed per unit within a weight band. On a high margin item they are a rounding error. On a thin margin item they can erase the profit entirely. The lower your rupee margin, the harder FBA has to justify itself.
• What is the weight and dimensional size. FBA fees scale with weight and volume, and Amazon charges on dimensional weight for bulky light items. Heavy or bulky products are exactly where FBA gets expensive and where self shipping or Easy Ship often wins.
• What is the return rate. High return categories like apparel and footwear generate a stream of FBA returns processing and reinsertion. FBA handling those returns for you is a real benefit, but the fees and the unsellable stock write offs need to be in your model.

Working the numbers, not the vibe

The honest comparison is landed cost per delivered order, not sticker fees. For FBA, add the fulfilment fee, the monthly storage fee spread across expected sell through, the returns processing cost weighted by your return rate, and any long term storage risk on slow movers. For seller fulfilled, add your courier cost per shipment, your packaging, your labour, and the cost of the buy box you lose on slower dispatch.

That last cost is the one brands forget. If self shipping drops you out of the buy box for even part of the day, the lost sales dwarf the fee you saved. So model it as delivered revenue, not just delivered cost.

A pattern we see hold up across Indian catalogues:

• Small, high margin, fast moving items: FBA almost always wins. The fees are trivial against the Prime conversion lift.
• Heavy or bulky low margin items: seller fulfilled or Easy Ship usually wins, because FBA weight fees eat the margin.
• High return fashion: depends on your own returns operation. If you inspect and restock efficiently, self shipping can beat FBA reinsertion economics. If you do not, let FBA absorb the mess.

Do not run one blanket policy

The biggest mistake is treating fulfilment as a company wide switch. Your catalogue is not uniform, so your fulfilment should not be either. Split it by ASIN economics. Put your fast, light, profitable hero products on FBA to win the buy box and the Prime badge. Keep your heavy, bulky, or thin margin lines on Easy Ship or self shipping to protect the rupees.

Review the split every quarter. Weight bands, fee schedules, and your own return rates move over time, and an ASIN that belonged on FBA last year can flip. The brands that hold margin on Amazon India are the ones treating fulfilment as an ongoing per product calculation, not a one time decision they made on day one and never revisited.

Storage discipline is the hidden cost

The FBA fee most brands underestimate is not the fulfilment fee, which is visible on every order. It is storage, which compounds silently on stock that does not move. Amazon charges monthly storage by volume, and slow movers that sit for months attract long term storage fees on top. A hero product churning fast pays almost nothing to store. A dead SKU parked in a fulfilment centre bleeds fees every single month while contributing no sales.

This changes the FBA calculation in a specific way. FBA rewards velocity. The faster a product sells through, the cheaper FBA is per unit, because storage barely touches it. The slower it sells, the more FBA punishes you. So the fulfilment decision is not only about weight and margin. It is about how confident you are that the stock will move.

• Send only what you expect to sell through in a reasonable window, not a full quarter of stock parked on speculation.
• Watch your inventory age reports and pull or discount slow movers before long term storage fees hit.
• Keep unproven new launches on Easy Ship or self shipping until demand is real, then graduate the winners to FBA.

The pattern that holds up is to prove demand cheaply, then scale the proven winners into FBA where velocity makes the fees trivial. Pushing untested stock into FBA on hope is how brands end up paying storage on inventory that will not sell, which is the most avoidable cost in the whole model.