What is Amazon FBA?

Fulfilment by Amazon: you send stock in, Amazon stores, ships and handles support.

FBA - Fulfilment by Amazon - is the service where you send your products to Amazon's warehouses and Amazon takes over from there: storage, delivery, returns and customer service. Your offers get the Prime badge, which is a large part of why FBA offers convert better than merchant-fulfilled ones.

The trade is fees for logistics: FBA charges a fulfilment fee per unit and storage fees per cubic volume, on top of the referral fee every Amazon sale pays. Whether a flip is profitable after all three is exactly what a deal calculator answers before you buy.