A bill to provide additional support to whistleblowers who report information about noncompliance with Federal tax laws.

This bill, designated as S. 4639 in the 119th Congress and introduced on May 21, 2026, aims to offer increased assistance to whistleblowers disclosing violations of Federal tax regulations. It focuses on enhancing support for individuals reporting noncompliance with tax laws, potentially outlining measures to protect, reward, or facilitate the reporting process for whistleblowers in the realm of tax enforcement.