Many sellers do not know their true margin, and not because they cannot do arithmetic. They simply do not have every fee in view. Amazon charges a range of different costs, and several of them are easy to overlook. This overview walks through the main fee types so you can build the business on an honest calculation.

Account fees

The base is your selling plan. On the Professional plan you pay a fixed monthly fee and get access to all features with no per-item charge. On the Individual plan the monthly fee falls away and a fixed amount is charged per item sold. Rule of thumb: above a certain monthly unit count the Professional plan pays off, and anyone selling regularly is almost always better off with it.

The referral fee

The most important variable fee is the referral fee, a percentage of the sale price that Amazon keeps on every order. It depends on the category and typically sits somewhere around 8 to 15 percent, higher or lower in individual categories. It applies whether you use FBA or FBM. In most calculations it is the single largest item.

FBA fees

If Amazon handles storage and shipping, several items come on top:

  • Fulfilment fee: per unit, depending on size and weight. Large and heavy items cost considerably more.
  • Storage fees: monthly by occupied volume, with seasonal surcharges in the high-volume months.
  • Inbound and placement fees: the cost of distributing your goods across Amazon's warehouses, a newer item that often surprises older calculations.
  • Long-term storage fees: surcharges on goods that sit too long.
  • Removal and disposal fees: for handling returns or retrieving and disposing of stock.

Costs that are easily missed

Some items rarely show up in a quick calculation but add up:

  • Returns: on FBA a processing fee often applies to refunded orders, and the goods are not always resellable.
  • Advertising (PPC): not an Amazon fee in the narrow sense, but in most categories effectively mandatory and therefore part of your real cost.
  • Special-case fees: for insufficiently prepared shipments, labelling done by Amazon or certain programmes.

Why the full picture decides

Individually each fee looks manageable. Together they can take a substantial share of the sale price. Count only the referral and shipping fee and you systematically overestimate your margin. Only the full list shows what is actually left. That is where many products fail: not on revenue, but on underestimated cost.

Keeping fees down actively

You can influence several items. Optimise packaging size and weight to fall into a cheaper FBA size tier. Keep your inventory healthy (see the IPI score) to avoid storage and long-term fees. For large, heavy or slow-turning products, check whether FBM is cheaper. And submit shipments properly prepared to save special-case fees.

Conclusion

Amazon's fee structure has many layers: the selling plan, the referral fee, various FBA items and easily missed costs such as returns, inbound placement and advertising. Know every item and put it into your calculation and you know your true margin, which makes for better pricing, product and logistics decisions. Look up current fee rates at Amazon directly, since they change regularly. The full picture is the foundation of every profitable Amazon business.