AskTaxGuru :: - Forum for discussion of tax issues.
Australian Taxation Office :: - Tax information for individuals, Companies and organisations, from the Tax Department of the Australian Federal Government.
Boon Docks, Inc. :: - Compilation of US withholding and unemployment tax rates.
Inc.com :: - Information and resources on law and taxation for small businesses and entrepreneurs.
IRS :: - The U.S. government agency responsible for tax collection and tax law enforcement. Includes income tax forms, instructions, and agency publications.
IRS Audit Infrormation :: - How to prepare, what to expect, the different types of audits, and taxpayers’ rights during an audit.
Phoenix :: - Consultancy offering articles on a variety of tax subjects.
Tax Facts Center :: - Tax information for citizens, policy analysts, legislators, and the press. A joint project of the Urban Institute and Brookings Institution.
The Tax Resource Group :: - Tax Research, consulting and research for attorneys, CPAs and EAs.
TaxLaw.be :: - Links and information concerning Belgian and international tax law.
TaxMama :: - Articles on a broad range of tax subjects.
Uncle Fed's Tax Board :: - Providing information on the United States tax system, filing a tax return, and problems that may be encountered by taxpayers. Also offers links to downloadable tax forms.