In case you have er­ro­neous­ly paid a hig­her amount than sta­ted on your tax in­voice, the over­pa­y­ment will au­to­ma­ti­cal­ly be re-​booked and cre­di­ted to fu­ture tax pe­ri­ods.

A re­fund in cryp­to­cur­ren­ci­es re­spec­tive­ly a bank trans­fer in Swiss Francs is not pos­si­ble.