To become a seller on eBay, the only thing required is an eBay account and an item to sell. Registration for an eBay account is free and available on the website.
After signing up for an account, create a listing for the item that is being sold. The listing should include a detailed description of the item for sale, as well as photographs featuring the item. EBay allows 12 photographs to be included for free with each post. as of July 2015. Sellers on eBay are allowed to set their own prices by either inputting fixed amounts or allowing potential buyers to bid on the item in an online auction. Once you choose a shipping method, click the List It button to finalize the post and allow the item to be sold on the website.