The IRS Restructuring and Reform Act of 1998 prompted the most comprehensive reorganization and modernization of IRS in nearly half a century. The IRS reorganized itself to closely resemble the private sector model of organizing around customers with similar needs.
To support its structure and ensure accountability, the IRS is divided into three commissioner-level organizations:
Commissioner
Specialized IRS units report directly to the Commissioner’s office. The IRS Chief Counsel also reports to the Treasury General Counsel on certain matters.
* Commissioner, Internal Revenue — Douglas Shulman
* Chief of Staff — Jonathan M. Davis
* IRS Chief Counsel — William J. Wilkins
* Appeals — Diane Ryan, Chief
* Taxpayer Advocate Service — Nina E. Olson, National Taxpayer Advocate
* Equity, Diversity and Inclusion — Debra Chew, Executive Director
* Research, Analysis and Statistics — Patricia McGuire, Acting Director
* Communications and Liaison — Frank Keith, Chief
