IRS Corporate Office

IRS Headquarters Info

The IRS (Internal Revenue Service) is the revenue service for the United States federal government, which is responsible for collecting taxes and administering the Internal Revenue Code, the main body of the federal statutory tax law.

If you need to contact IRS corporate office, the best phone number to call is their support hotline at 800-829-1040. The IRS headquarters in 1111 Constitution Ave NW, Washington, DC 20224, United states

IRS Contact Information

IRS headquarters address: 1111 Constitution Ave NW, Washington, DC 20224, United states

Company website:

Head Office phone number: +1 202-622-5000

IRS Customer Service Number: 800-829-1040

Support email address:

Customer service hours: Monday through Friday, 7 a.m. to 7 p.m. 

IRS Corporate Office Executive Team

  • Deputy Commissioner for Services and Enforcement — Douglas O’Donnell
  • Assistant Deputy Commissioner for Services and Enforcement — Paul Mamo
  • Wage and Investment Division — Ken Corbin, Commissioner
  • Large Business and International Division — Nikole Flax, Commissioner
  • Small Business/Self Employed Division — Lia Colbert
  • Tax Exempt and Government Entities Division — Sunita Lough, Commissioner
  • Criminal Investigation — James C. Lee, Chief
  • Return Preparer Office — Carol Campbell, Director
  • Office of Professional Responsibility — Sharyn Fisk, Director
  • Office of Online Services — Karen S. Howard, Director
  • Whistleblower Office — John Hinman, Director
  • Enterprise Digitalization & Case Management — Harrison Smith and Brad Bouton *, Co-Directors

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