Internal Revenue Service - U.S. government agency responsible for tax collection and tax law enforcement. Provides downloadable income tax forms, instructions, agency publications, and "The Digital Daily," an almost-humorous online newspaper.
MSN MoneyCentral Taxes - Microsoft's Tax Preparation site, in association with Tax Server.
Allexperts Tax Q&A - Professionals with backgrounds in accounting answering individual tax questions..
IRS.gov - Understanding Taxes - Offers both print and online materials to help learn more about the history, theory, and application of taxes in the United States..
TaxWorld - Includes a history of taxation, statistics, terms in different languages and a directory..
Timber Taxes - Comprehensive explanation of the tax treatment of timber. Including qualifying for capital gains, casualty losses, income, expenses, and reforestation..
Wedding Bells and the Marriage Penalty - Discover how the marriage penalty causes married couples to pay more taxes than their single counterparts. Learn who it hurts, why it is so costly, and how to avoid it..