| Category | Organization or Company | Website Link |
|---|---|---|
| Tax-Related or Finance-Related Organization | US-IRS.gov (Internal Revenue Service) | Link |
| Australian - ATOassist | Link | |
| Austria | Link | |
| Belgium - Federal Public Service FINANCE | Link | |
| Cyprus - Ministry of Finance | Link | |
| Cyprus - Customs & Excise | Link | |
| Czech Republic | Link | |
| Denmark - Ministry of Taxation | Link | |
| Denmark - Administration (da version) | Link | |
| Estonia - Ministry of Finance | Link | |
| Finland - Tax Administration | Link | |
| France - Tax Administration | Link | |
| Germany - Ministry of Finance (tax policy) | Link | |
| Germany - Tax Office (tax collection) | Link | |
| Greece | Link | |
| Hungary | Link | |
| New Zraland - IRD.govt.nz ( Inland Revenue) | Link | |
| Ireland - Department of Finance | Link | |
| Italy - Ministry of Finance | Link | |
| Italy - Tax administration | Link | |
| Latvia - Ministry of Finance | Link | |
| Latvia - State Revenue Service | Link | |
| Lithuania | Link | |
| Luxembourg - General | Link | |
| Malta - Ministry of Finance | Link | |
| The Netherlands - Ministry of Finance | Link | |
| The Netherlands - Tax Administration | Link | |
| Poland | Link | |
| Portugal | Link | |
| Slovakia | Link | |
| Slovenia | Link | |
| Spain - Ministry of Finance | Link | |
| Spain - Tax administration | Link | |
| Sweden | Link | |
| United Kingdom - Inland Revenue (direct taxes) | Link | |
| United Kingdom - Treasury | Link | |
| Centre de fiscalite europeenne | Link | |
| Chartered Institute of Taxation | Link | |
| International Organization | OECD(Organisation for Economic Cooperation and Development ) | Link |
| IOTA(Intra-European Organisation of Tax Administrations ) | Link | |
| IFA(International Fiscal Association ) | Link | |
| CIAT(Inter-American Centre of Tax Administrations ) | Link | |
| CFE(Confederation Fiscale Europeenne ) | Link | |
| Others | AICPA(American Institute of Certified Public Accountants) | Link |
| Strategic Finance Magazine | Link | |
| Tax Notes | Link | |
| Tax Facts | Link | |
| Tax News & Tips | Link | |
| Harvard Business School Publishing | Link | |
| National Association of Tax Professionals | Link | |
| Arizona Society of CPA | Link |