| Country | Contact information |
|---|---|
| Andorra | Tax Authority |
| Norway | Tax Administration Ministry of Finance |
| Switzerland | Federal Tax Administration |
| Ukraine | State Fiscal Service |
| United Kingdom | HM Revenue and Customs |
| United States of America | Internal Revenue Service |
International organisations
- Organisation for Economic Cooperation and Development (OECD)
- Intra-European Organisation of Tax Administrations (IOTA)
- International Fiscal Association (IFA)
- International Tax Dialogue (ITD)
- Inter-American Centre of Tax Administrations (CIAT)
- Confédération Fiscale Européenne
- Home – Court of Justice of the European Union – CURIA
- Home | Europol
- INTERPOL | The International Criminal Police Organization
- Taxation and Customs Union – European Commission
Anna Valchanova 