Author/Creator
- United States. Internal Revenue Service1,187
- United States1,108
- Library of Congress. Congressional Research Service1,038
- United States. Congress. House. Committee on Ways and Means640
- United States. Congress. Senate. Committee on Finance500
- United States. Congress. Joint Committee on Taxation312
- United States. Congress. Joint Committee on Internal Revenue Taxation286
- United States. Congress. House. Committee on Ways and Means. (1795- )207
- United States. Congress. House. Committee on Ways and Means145
- United States. Congress. Senate. Committee on Finance. (1816- )139
- Commerce Clearing House128
- United States. Congressional Budget Office123
- United States. Congress. Senate. Committee on Foreign Relations105
- United States. Congress. House101
- United States. Congress. House. Committee on the Judiciary. (1813- )101
- United States. Congress. Senate. Committee on Finance98
- United States. Department of the Treasury90
- Library of Congress. Congressional Research Service, issuing body88
- United States. Congress. Senate79
- United States. Congress. House. Committee on Ways and Means. Subcommittee on Oversight77