Tax-related laws, regulations, and documents
Federal tax law, with links to related resources
Complete, currently effective federal tax regulations
Rules for lawyers, accountants, and others practicing before the IRS
Notices of proposed rulemaking issued for public comment
Finalized updates to Treasury regulations
IRS explanations of tax law and its implementation
Interpretations of tax law issued by IRS to individuals, businesses, and government
Opinions and other documents from federal tax-related court cases
Bills, resolutions, reports, and other documents from the U.S. Congress
Letters on proposed regulations sent by businesses, individuals, and others
The IRS's primary source of instructions to its personnel
Tax rates, inflation adjustments, and IRS regulatory agenda
Previous versions of the Internal Revenue Code
Previous versions of Final and Temporary Regulations
Correspondence, press releases, and other miscellaneous tax documents
