Federal Research Tools
Federal Research Library™Online
Our research libraries offer a vast collection of source documents.
Easily locate your source documents in our collection of primary source materials:
- Internal Revenue Code of 1986
- IRS regulations (final, temporary, and proposed)
- Treasury decisions
- IRS taxpayer publications
- Revenue rulings
- Revenue procedures
- Notices
- Announcements
Research a vast collection of court opinions — containing more than 100,000 decisions with parallel citations from the:
- U.S. Supreme Court
- U.S. courts of appeals
- U.S. district courts
- U.S. Tax Court (regular, memoranda, and summary decisions)
- U.S. bankruptcy and bankruptcy appellate panel courts
- U.S. Court of Federal Claims
- U.S. Board of Tax Appeals
Know the IRS agents and officers’ administrative and operational policies and procedures, with the entire Internal Revenue Manual available to the public.
Federal Research Library™
- Online
- Quickly see the latest additions to the library with our What’s New feature
- Find esoteric tax documents, with the complete legislative history of all acts affecting the Internal Revenue Code from the 97th Congress (1981), including:
- Recent legislation
- Legislative history
- JCT blue books
- Access to TaxPractice on the Web, a weekly publication offering in-depth coverage and analysis of legislative tax proposals, court decisions, regulatory pronouncements, and new trends in the administration of tax law
- Searchable Archives
- Code section
- Regulations
- Rulings
- Internal Revenue Manual archived quarterly editions back to 2001
- IRS publications
- TaxPractice from January 1999 to the present
Annual subscriptions are available with monthly or quarterly updates.
Contact a representative at 800-955-3444
Monday through Friday, 8:30 AM to 5:30 PM (ET)
