Argentina
Administracion Federal de Ingresos Publicos

Australia
Australian Government Home Page
Australian Taxation Office - ATO Assist
Department of Finance
Department of the Treasury
New South Wales Queensland South Australia
Tasmania Western Australia

Austria
Österreichisches Steuerrecht

Belarus
Belarussian Law

Belgium
Index - Belgium Online
Ministry of Finance

Belize
Ministry of Finance

Brazil
Ministry of Finance
Instituto Brasileiro de Contadores

Bulgaria
KnowledgeNet Country Profile

Canada
Department of Finance
Department of Justice
Government of Canada
Office of the Auditor General
Revenue Canada
Alberta British Columbia Manitoba New Brunswick[Français]
Newfoundland and Labrador Northwest Territories
Nova Scotia Ontario Prince Edward Island Québec [Français]
Saskatchewan Yukon Territory

Chile
Servicio de Impuestos Internos

China, People's Republic of
Beijing Investment Guide - Taxes
Xiamen Tax Regulations

Costa Rica
Organización de la Dirección General de Tributación

Croatia
Ministry of Finance

Czech Republic
Doing Business With CR - Taxes

Denmark
Ministry of Finance
Ministry of Taxation

Estonia
Ministry of Finance

Finland
Finnish Tax Administration
Ministry of Finance
Tullin Tietopalvelu (National Board of Customs)

France
Ministère de l'Économie, des Finances et de l'Industrie

Germany
German-Taxation.com 
Besteuerung von multinationalen Unternehmensgruppen in den U.S.A.

Greece
Ministry of Finance

Guam
Department of Revenue and Taxation

Guatemala
Ministry of Finance

Hong Kong
Customs and Excise Department
General Tax Information
Inland Revenue Department

Hungary
Knowledge Net Country Profile
Ministry of Finance

Iceland
Ministry of Finance

Indonesia
KnowledgeNet Country Profile

Ireland
Revenue Commissioners

Isle of Man
Treasury

Italy
Banchedati

Jamaica
Ministry of Finance and Planning

Japan
Ministry of Finance

Kenya
Kenya Revenue Authority

Lithuania
Ministry of Finance

Luxumbourg
Ministry of Finance

Malaysia
Treasury - Ministry of Finance

Mexico
Servicio de Administración Tributaria
Ministry of Finance

Mongolia
Ministry of Finance

Morocco
Ministry of Economy and Finance

Netherlands
International Bureau of Fiscal Documentation
Ministry of Finance - Taxation in the Netherlands

New Zealand
Inland Revenue Department
New Zealand Treasury

Nicaragua
Ministerio de Hacienda y Crédito Público

Norway
Ministry of Finance

Panama
Ministerio de Economía y Finanzas

Peru
Ministerio de Economía y Finanzas
Colegio de Contadores Publicos de Lima

Philippines
Bureau of Internal Revenue

Puerto Rico
Colegio de CPA

Russia
The ABC of Russian Business Law [Taxation]
Russian Tax Ministry

Singapore
Inland Revenue Authority of Singapore

Slovenia
Ministry of Finance

South Africa
Department of Finance
South African Revenue Service

Sri Lanka
Department of Inland Revenue
Sri Lanka Trade Enquiries Website

Sweden
Riksskatteverket
National Tax Board - Information in English

Switzerland
Department of Finance
Taxation in Switzerland

Thailand
Ministry of Finance

Taiwan
Finance and Taxation

Turkey
Certified Public Accountants of Turkey
Ministry of Finance

United Arab Emirates
Ministry of Finance & Industry

United Kingdom
CCTA Government Information Service
Customs and Excise
Inland Revenue
Companies House
Parliament
Social Security

United States of America
Internal Revenue Bulletins
IRS Publications IRS Forms, current year
IRS Forms, 1992 - 1999 Internal Revenue Regulations
Social Security Totalization Treaties
Social Security Retirement guide
Social Security Rulings Daily per-diem rates IRS Statistics
Tax Legislation pending in Congress State tax sites
United States Code Federal Administrative Documents
Uniform Commercial Code
Court Decisions:  US Supreme Court and US Circuit Courts
US Bankruptcy Code by Cornell University Law School.
Federal Register Economic data Foreign currency historical data