That does not mean Amazon made a mistake.
It means the broader accounting bucket and the seller’s business question were not identical.
A seller may be asking:
“What did fulfillment actually cost me?”
Margiyo works from the seller’s existing Amazon Payments Transaction Report and reorganizes transaction activity into seller-understandable business categories where the data supports that classification.
The broader FBA fee bucket was $2,052.16. Fulfillment itself was $1,263.90. The difference was not an overcharge. It was a difference in what the numbers represented.
The point was not the difference itself. The point was that the broader accounting bucket and the fulfillment question were not the same thing.
What do Amazon FBA fees actually tell you?
Amazon separates fulfillment, storage, and selling/referral fees in its fee guidance.
The seller’s Transaction Report can contain many kinds of activity, while the seller may be trying to answer one narrower question:
“What did fulfillment actually cost me?”
That is the distinction Margiyo is trying to make easier to see.
Why can an FBA fee total differ from fulfillment cost?
The reporting label was useful, but it was not enough by itself to answer the seller’s question.
Margiyo does not fabricate a reconciliation when the underlying report does not support one.
Why does the business meaning of the fee matter?
Fulfillment answers one question.
Storage answers another.
Referral and selling fees answer another.
Refund activity can change the picture again.
The point is not to rename Amazon’s data. It is to make the same data more useful for running the business.
How should sellers evaluate Amazon FBA fees?
Fulfillment relative to sales
Compare fulfillment cost with product sales so the cost has business context.
Whether fulfillment costs are moving in line with sales
Look at comparable periods to see whether fulfillment cost and sales are moving together.
Storage-related costs
Storage-related activity can be significant enough to deserve its own view rather than being mentally folded into “FBA fees.”
Product-level cost patterns
Product-level activity can show where an account-level change is concentrated without pretending that the pattern proves its root cause.
A fee total also becomes more useful when compared with sales. In one Margiyo analysis, fees fell in dollars but still grew from 39.0% to 59.4% of product sales because sales declined much faster. Read the full Amazon profit analysis.
What is the difference between fulfillment fees, storage fees, and referral fees?
Fulfillment fees
Amazon’s FBA guidance describes fulfillment costs as covering activities such as picking, packing, shipping orders, customer service, and returns, with costs depending on the products and services used.
Storage fees
Amazon describes inventory storage costs separately and says monthly storage costs are based on the space inventory occupies in its fulfillment network.
Referral and selling fees
Amazon’s pricing guidance separates standard selling fees into selling plan fees and referral fees. Referral fees vary by product category.
Can a high FBA fee total mean something is wrong?
Not necessarily.
A high fee total can reflect:
- sales volume
- product mix
- fulfillment characteristics
- inventory activity
- Amazon program usage
- other account activity
The number is more useful when compared with:
- sales
- prior periods
- fee mix
- product-level activity
How Margiyo analyzes Amazon FBA fees
- Start from Amazon Payments Transaction Report activity.
- Preserve underlying transaction data.
- Classify by seller-facing business meaning where supported.
- Compare costs with sales and periods.
- Inspect product-level patterns.
- Distinguish signal from root cause.
- Do not call differences lost profit.
- Stop where the data stops.
Learn more about why Margiyo was built from real Amazon seller data.