1040.com — Federal and state tax forms and tax resources on the web.
ABA Section of Real Property, Probate and Trust Law — Membership, publications, continuing legal education and other resources.
ABA Section of Taxation — Public policy, program calendar, committees, publications, press center, archives and frequently asked questions.
Callison's Treatises - LLCs, LLPs and LLLPs — Information on formation and taxation of limited liability companies.
Citizens for Tax Justice — Publications, frequently asked questions, federal tax legislation and articles on federal taxation.
Cross Border Tax and Transactions — Information on international business, legal and tax developments.
Databases and Statistics
Employee and Contractors Law — Provides workplace information on discrimination, sexual harassment, fair pay and time off, health and safety, and information for employers.
Employee or Contractor? IRS Guidelines — From Search Consultants International, Inc.
Federal Tax Law — Summaries and esources on federal tax legislation.
Federation of Tax Administrators — Publications, links to state tax pages and state tax rate table.
Government Agencies
Hammond Law Group  — Features resources and information on tax law for Houston TX.
Internal Revenue Service (IRS) — Tax forms, instructions, publications, regulations, tax statistics, taxpayer help, information for business, and electronic services.
International Tax — Tax web sites and resources for 19 countries
International Taxation from a U.S. Perspective — Includes tax treaties, news, information on inbound and outbound transactions and procedures.
Ira L. Zuckerman, P.A.  — Specializes in tax law for the people of Fort Lauderdale.
John D. Teter Law Offices  — John D. Teter Law Offices has over 25 years experience in resolving tax conflicts, as well as providing comprehensive assistance with real estate, small business formation, and estate planning issues.
Law Office of Stanton D. Goldberg  — Dallas, Texas tax law resources and information
Law Offices of Jeffrey S. Freeman  — Michigan Attorneys specializing in resolving Tax Matters and IRS Penalities
Legal Information Institute at Cornell Law School — Links to law sites by source or jurisdiction, Supreme Court, New York Court of Appeals and Federal decisions, Federal law, international law, legal organizations, journals.
Legal Information Institute at Cornell Law School: Estate and Gift Tax
Legal Information Institute at Cornell Law School: Income Tax
Legal Information Institute at Cornell Law School: Property Tax
Legalbitstream — Includes searchable databases of Federal Tax Law and more.
M. Tx. Writing Web Site — A written communication resource and tutorial for tax students and professionals.
Mailing Lists and Groups
Nanny Tax Information — From Breedlove & Associates. Employment and tax information for household employers.
Nanny Tax Information — Newsletter, resources, tax calculator and registration for services.
National Association of Enrolled Agents — News and resources for taxpayers and practitioners.
National Association of Tax Practitioners — Journal, online research center, classified ads and directory.
National Tax Association — Membership, conferences and tax encyclopedia.
Primary Materials - Laws and Government Documents
Professor Doernberg's Tax Law Web Site — From Emory Law School. Current tax events, book updates and tax professor information.
Publications - Journals, Newsletters and Articles
Scott Kauffman, A Professional Law Corporation  — Information on tax law in Orange County, CA.
Software
Tax Analysts — Tax Notes News Wire, tax products and calendar.
Tax Forms — Tax forms and instructions.
Tax Law
Tax Links — Links and databases for tax research, database of IRS Revenue Rulings and tax forms.
Tax Resources — Links of web tax resources. Modified and hosted by The 'Lectric Law Library.
Tax Wonders — Collection of income tax minimizing strategies.
Tax World — Tax forms, research, statistics and resources.
Taxes in the United Kingdom — A summary of topical UK accounting and tax information
TaxGaga.com — Tax resources for professionals and consumers.
Taxgate.com — News, articles, faqs, training and other tax law resources.
TaxLibrary.com — Federal tax research, IRS regulations, annotated publications, tax forms. Subscription-based service from Thompson Publishing Group.
TaxSites.com — Directory of tax, accounting, and payroll sites.
TaxSites.com — Directory of tax, accounting, and payroll sites.
TaxTopic.com — Newsletter and listing of tax related sites.
TaxWeb — Consumer-oriented site with forms, legislation, tax calendar and resources on federal and state taxes.
The Complete WorldWide Tax & Finance Site — Features comparison chart of tax rates around the World.
The Law Offices of Lawrence Brown  — Fort Worth, TX Tax Lawyer
The Tax Prophet — Searchable collection of tax information edited by Robert L. Sommers.
Thienel Law Firm, LLC Attorneys at Law  — Resources for tax law in Baltimore
Trusts & Trustees — John Goldsworth, UK. Full Text.
U.S. Taxation of Americans Living Abroad — From Don D. Nelson, Attorney at Law, CPA. FAQ on expatriate tax obligations.
Weisberg and Kainen  — Includes resources on tax law throughout the Miami, Florida area.
What Is a 1031 Exchange? — FAQ on 1031 exchanges. From Accurate Exchange, Inc.
Yahoo! Tax