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Specialized IRS units report to the Commissioner's office. The IRS Chief Counsel also reports to the Treasury General Counsel on certain matters.

Commissioner, Internal Revenue ¡ª Melanie Krause (acting)

• Chief of Staff ¡ª Emily Kornegay
• IRS Chief Counsel ¡ª Andrew De Mello (acting)
• ¡ª Erin M. Collins, National Taxpayer Advocate
• Appeals ¡ª Elizabeth Askey, Chief of Independent Office of Appeals
• Taxpayer Experience Office ¡ª Fumi Tamaki, Chief
• Communications and Liaison ¡ª Jodie Reynolds, Chief
• Direct obÌåÓý ¡ª Bridget Roberts, Chief

The Deputy Commissioner reports to the Commissioner and oversees 4 primary operating divisions: 4 chief executive positions cover taxpayer service, tax compliance, information technology and operations.

Deputy Commissioner ¡ª Melanie Krause

• Office of Online Services ¡ª Karen Howard, Director
   
• Taxpayer Services ¡ª Kenneth Corbin, Chief
   
• Chief Tax Compliance Officer ¡ª Edward Killen (acting)
  • Criminal Investigation ¡ªGuy Ficco, Chief
  • Enterprise Case Management ¡ª Sashi Iyer, Director (acting)
  • Large Business and International Division ¡ª Holly Paz, Commissioner
  • Office of Professional Responsibility ¡ª Elizabeth Kastenberg, Director (acting)
  • Return Preparer Office ¡ª Kimberly Rogers, Director
  • Small Business/Self Employed Division ¡ª Lia Colbert, Commissioner
  • Tax-Exempt and Government Entities Division ¡ª Robert Choi, Commissioner (acting)
  • Whistleblower Office ¡ª John Hinman, Director
     
• Chief Operating Officer ¡ª Teresa Hunter (acting)
  • Chief Financial Officer ¡ª Bryan Musselman (acting)
  • Chief Facilities Management and Security Service ¡ª Julia Caldwell
  • Chief Human Capital Officer ¡ª Max Wyche (acting)
  • Chief Risk Officer ¡ª Charles Messing (acting)
  • Chief Privacy Officer ¡ª Kathleen Walters 
  • Chief Procurement Officer ¡ª Dottie Romo (acting)
  • Chief Data and Analytics Officer ¡ª Reza Rashidi (acting)
  • Executive Director, Lifting Communities Up ¡ª Kevin Q. McIver
     
• Chief Information Officer ¡ª Rajiv Uppal