Joining and starting a shop on Plumatorium is free. There are three basic selling fees: a listing fee, a transaction fee, and a payment processing fee.
It costs USD 0.60 to publish a listing to the marketplace. A listing lasts for four months or until the item is sold. Once an item sells, there is a 5.5% transaction fee on the sale price (not including shipping costs). If you accept payments with PayPal or Stripe, there is also a payment processing fee based on their fee structure.
Listing fees are billed for $0.60 USD, so if your bank’s currency is not USD, the amount may differ based on changes in the exchange rate.