Også på selvangivelser eller trygdeoppgaver. • https://www.oecd.org/content/dam/oecd/en/topics/policy-issue-focus/aeoi/czechia-tin.pdf • http://www.financnisprava.cz/en/financial-administration/general-financial-directorate/contacts Danmark CPR-nummer (Civil Registration Number) or Personnummer (Personal Number).