Tax Authorities
When the business case is an after-tax case (i.e., it includes estimated tax effects), there are many opportunities for tax consequences to contribute to the "bottom line:" when operating income is increased, for instance, or when asset acquisitions lead to depreciation expenses.
Estimating the applicable tax rates can begin with a review of history in the organization's financial statements. When new or more detailed tax information is required, the best source will be a tax specialist in your own organization. Otherwise, you can look directly to the taxing authorities involved. Links here include:
- National / Federal Tax Authorities
Alphabetical by Country A – E | F – L | M–R | S – Z - Australian State Tax Authorities
- Canadian Provincial Tax Authorities
- US State Tax Authorities
Alphabetical by State A – I | K – N | O – Z
National / Federal Tax Authorities
A – E
- Andorra
- Argentina - Ministerio de Economía Obras y Servicios Públicos
- Australia
- Austria - Bundesministerium für Finanzen
- Belgium - Ministère des Finances / Ministerie van Financiën
- Bermuda - Monetary Authority
- Bolivia - Servicio National de Impuestos Internos
- Brazil - Ministry of Finance
- Canada - Revenue Canada
- Chile - Servicio de Impuestos Internos
- China
- Columbia - Dirección de Impuestos y Aduanas Nacionales (DIAN)
- Costa Rica - Colegio de Contadores Públicos de Costa Rica
- Croatia - Ministry of Finance
- Czech Republic - Ministry of Finance
- Denmark - Ministry of Finance
- Dominican Republic - Dirección General de Impuestos Internos
- El Salvador - Dirección General de Impuestos Internos
- Estonia - Ministry of Finance
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National / Federal Tax Authorities
F – L
- Finland - Ministry of Finance
- Germany - Bundesministerium der Finanzen
- Greece - Ministry of Finance
- Guam - Department of Revenue and Taxation
- Guatemala - Ministry of Finance
- Hong Kong - Inland Revenue Department
- Hungary - Tax Administration (APEH)
- Iceland
- India - Ministry of Finance
- Indonesia - Ministry of Finance
- Ireland, Republic of - Revenue Commissioners
- Israel - Ministry of Finance
- Italy - Ministero delle Finanze
- Jamaica
- Japan - Ministry of Finance
- Kenya - Kenya Revenue Authority
- Korea, South - Ministry of Finance and Economy
- Latvia - Ministry of Finance
- Lithuania - Finansø Ministerija
- Luxemburg - Ministère des Finances
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National / Federal Tax Authorities
M – R
- Macedonia - Ministerstvo za Finansii
- Malaysia - Inland Revenue Board
- Mexico - Servicio de Administración Tributaria
- Morocco - Ministry of Economy and Finance
- The Netherlands - Ministry of Finance
- New Zealand - Inland Revenue
- Nicaragua - Dirección General de Ingresos
- Norway
- Pakistan - Central Board of Revenue
- Panamá - Dirección General de Ingresos
- Philippines - Bureau of Internal Revenue
- Poland - Ministry of the Treasury
- Portugal - Direcção-Geral dos Impostos (DGCI)
- Russian Federation - Ministry of Finance
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National / Federal Tax Authorities
S – Z
- Singapore - Inland Revenue Authority of Singapore
- Slovenia - Ministry of Finance
- South Africa
- Spain - Agencia Tributaria
- Sri Lanka - Inland Revenue Department
- Swaziland - Ministry of Finance
- Sweden
- Switzerland
- Taiwan -
- Thailand - Revenue Department
- Tunisia - Ministère des Finances
- Turkey - General Directorate of Revenues
- Ukraine - Ministry of Finance
- United Kingdom
- United States
- Internal Revenue Service
- Tax Code (Search Engine)
- Uruguay - Dirección General Impositiva
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Australia - State Tax Authorities
- New South Wales - Office of State Revenue
- Northern Territory - Treasury
- Queensland - Office of State Revenue
- South Australia - Department of Treasury & Finance
- Tasmania - Department of Treasury and Finance
- Victoria - State Revenue Office
- Western Australia - State Revenue Department
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Canada - Provincial Tax Authorities
- Alberta - Finance and Enterprise
- British Columbia - Ministry of Finance and Corporate Relations
- Manitoba - Department of Finance
- New Brunswick - Department of Finance
- Newfoundland and Labrador - Department of Finance
- Northwest Territories - Department of Finance
- Nova Scotia - Department of Finance
- Ontario - Ministry of Finance
- Prince Edward Island - Provincial Treasury
- Québec - Ministère du Revenu
- Saskatchewan - Department of Finance
- Yukon Territory - Department of Finance
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United States - State Tax Authorities
A – I
- Alabama - Department of Revenue
- Alaska - Department of Revenue
- Arizona - Department of Revenue
- Arkansas - Department of Finance and Administration
- California - Franchise Tax Board
- Colorado - Department of Revenue
- Connecticut - Department of Revenue Services
- Delaware - Division of Revenue
- District of Columbia - Office of the Chief Financial Officer
- Florida - Department of Revenue
- Georgia - Department of Revenue
- Hawaii - Department of Taxation
- Idaho - State Tax Commission
- Illinois - Department of Revenue
- Indiana - Department of Revenue
- Iowa - Department of Revenue and Finance
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United States - State Tax Authorities
K – N
- Kansas - Department of Revenue
- Kentucky - Kentucky Revenue Cabinet
- Louisiana - Department of Revenue
- Maine - Revenue Services
- Maryland - Comptroller of the Treasury
- Massachusetts - Department of Revenue
- Michigan - Department of Treasury
- Minnesota - Department of Revenue
- Mississippi - State Tax Commission
- Missouri - Department of Revenue
- Montana - Department of Revenue
- Nebraska - Department of Revenue
- New Hampshire - Department of Revenue Administration
- New Jersey - Division of Taxation
- New Mexico - Taxation and Revenue Department
- New York - Department of Taxation and Finance
- North Carolina - Department of Revenue
- North Dakota - Office of State Tax Commissioner
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United States - State Tax Authorities
O – Z
- Ohio - Department of Taxation
- Oklahoma - Tax Commission
- Oregon - Department of Revenue
- Pennsylvania - Department of Revenue
- Rhode Island - Division of Taxation
- South Carolina - Department of Revenue
- South Dakota - Department of Revenue
- Tennessee - Department of Revenue
- Texas - Comptroller of Public Accounts
- Utah - State Tax Commission
- Vermont - Department of Taxes
- Virginia - Department of Taxation
- Washington - Department of Revenue
- West Virginia - Department of Tax & Revenue
- Wisconsin - Department of Revenue
- Wyoming - Department of Revenue
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