To conclude, individual sellers are required to pay a $0.99 fee for each of their sales transactions; the professional seller plan does not. Therefore, if an individual seller sells 41 products in a month, they will have to pay $40.59 (41 x $0.99) in seller fees.
On the other hand, professional sellers only pay the $39.99 subscription fee, regardless of the number of products they sell. Both Amazon individual and professional sellers can sell in 20 Amazon categories. Professional sellers, though, have access to an additional 10. The 10 bonus categories include Automotive Parts & Accessories; Business to Business (B2B) products; Collectibles Coins; Fashion Jewellery; Fine Jewellery; Fine Art; Grocery, Food & Gourmet; Industrial & Scientific; Professional Services; Sports Collectibles; Video, DVD, & Blu-ray; and Watches.
One of the biggest advantages that Amazon professional sellers have over Amazon individual sellers is their eligibility to win the all-important ‘Buy Box’. (The Buy Box is the section of a product listing page that allows buyers to automatically add your product to their shopping cart.) But, if you aren’t an Amazon professional seller and even if you are the only seller on listing buyers will have to go through more steps in order to make a purchase. According to Statista, 82% of all purchases happen through the Buy Box.