Sellers must declare to Artupia if they are (or they become) professional sellers or not. They are responsible for their tax affairs, and  Artupia will not be responsible for their tax compliances.
Most of the governments require each user who has sold artwork on Artupia to declare the gain as income from “other activities” external to your work in the annual tax form. Before purchasing or selling artworks, please inquire more information about tax forms in your country.

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