Insertion fees
When you list an item for sale, you may be charged a listing (or insertion) fee. If an insertion fee is applicable, you're charged one insertion fee per listing, per category, regardless of the quantity of items.
Insertion fees are charged to your seller account at the time of listing. Even if the item doesn't sell, you're still responsible for the insertion fee.
Insertion fees are flat fees and are calculated differently depending on the category of the item, the selling format you choose, and if you're a Stores subscriber.