Every Amazon brand is told FBA is the default
By Noah Wickham · July 6, 2026 · Curated by George's Blog
Every Amazon brand is told FBA is the default
For most products, that's right
For specific products, FBA is the most expensive fulfillment decision the brand has made and they don't realize it
FBA wins when
➝ Product is small, light, fast-moving
➝ Prime eligibility drives meaningful conversion lift
➝ Customer expects 2-day delivery
➝ Brand can hit 90-day inventory turn rate
➝ FBA fees are below 30 percent of selling price
FBM wins when
➝ Product is oversized, heavy, or requires special handling
➝ Slow-moving SKU, long-tail inventory, seasonal products
➝ Customer is willing to wait for shipping
➝ Brand has existing 3PL or in-house fulfillment with lower per-unit costs
➝ Product is fragile or high-value and FBA damage rates are unacceptable
➝ Category is one where Amazon's storage fees punish slow-moving inventory
The cost structure brands underestimate
FBA fees include pick-pack, weight handling, storage, long-term storage, removal, and returns
A unit that sits in FBA for 12 months can cost more in storage fees than it cost to manufacture
Oversized FBA storage fees are 3 to 5x standard size storage fees
Returns through FBA cost a return processing fee plus shipping plus restocking, sometimes more than the product's profit margin
When FBM unlocks better margin
A brand selling a $200 product with 12-month inventory turn through their own 3PL might pay $8 per unit in fulfillment costs
The same product through FBA might pay $25 in pick-pack plus another $15 in storage and long-term fees over the same period
That's $32 in margin per unit, recoverable through FBM
The hybrid strategy most brands miss
FBA for the top 20 percent of SKUs that drive 80 percent of revenue and need Prime conversion
FBM for the long tail that sells slowly, has high shipping costs, or doesn't benefit from Prime badge
Same brand, both fulfillment methods, optimized for the economics of each SKU instead of defaulting to one for everything
Most brands run 100 percent FBA because it's easier
The brands actually optimizing run mixed because it's profitable