amazon seller fee is a cost that sellers must pay to list and sell their products on Amazon’s marketplace. Amazon charges various fees depending on the type of selling plan, the category of the product, and whether the seller uses Fulfillment by Amazon (FBA). Common fees include a referral fee (a percentage of the sale price) and additional fees for FBA services such as storage, picking, packing, and shipping. Understanding these fees is crucial for sellers to price their products competitively and ensure profitability.