Linda Stiff, the former acting commissioner of the IRS, plans to retire this fall.
Stiff, who filled in at the IRSs top post for seven months after Mark Everson left for a short-lived job as chief executive of the American Red Cross, is currently deputy commissioner for services and enforcement. She has been with the IRS for 30 years.
Her replacement as enforcement chief will be Mark Miller, who is currently in charge of the IRSs Large and Mid-size Business Division. Miller also was in charge of the Tax-Exempt/Government Entities Division from 1999 to 2004.
