Legislative History Documents Checklist
Compiled Legislative Histories: Arranged chronologically
Heinonline - Tax Legislative Histories 1909-current
ProQuest Congressional Legislative Histories (1789- present) Most comprehensive source for legislative history.
Proquest Legislative Insight (1927- present) coverage varies.
Language of Previous Tax Acts
Free Legislative History and Bill Information
House Ways and Means Committee (includes hearings)
Senate Finance Committee (includes hearings, bills and reports)
Joint Committee on Taxation (full text of JCT documents, 1920- present)