Nancy Sieger

Chief Information Officer

IRS, Department of the Treasury

Nancy Sieger serves as the Chief Information Officer (CIO) for Information Technology where she is responsible for all aspects of our systems that operate the nation's tax infrastructure. She oversees the 7,000-person IT organization that maintains hundreds of systems and supports the processing of millions of tax returns annually.

Nancy previously served as the Deputy CIO for Filing Season and Tax Reform. In that capacity, she provided leadership for executing all technology changes needed to deliver the Tax Cuts and Jobs Act, in addition to ensuring IT delivers a seamless annual tax filing season and integrates software and operational solutions that align with modernization goals. Nancy also previously served as the Acting Deputy CIO for Operations and the Associate CIO for Applications Development.

Throughout her career, Nancy has been committed to the principles of Equal Employment Opportunity and Diversity. She served as chair of the IT Diversity & EEO Advisory Committee and actively mentors employees at all levels. Nancy is the recipient of a Fed Scoop 50 award for exemplary Federal Leadership and was honored with a Presidential Rank Award in 2018 for Meritorious Service. Nancy is a graduate of the University of Maryland. She resides in Pleasant View, Utah with her husband, Eric. In her spare time, she is an avid gardener and enjoys nothing more than a relaxing day outside.