alliantNational has the experience and expertise to guide you through even the most complex areas of the tax code.

Kathy Petronchak

Director of IRS Practice & Procedure

Kathy Petronchak is the Director of IRS Practices and Procedure at alliantgroup and is part of the alliantnational group in Washington, DC. In this role, she provides assistance on a wide range of procedural issues related to IRS procedures, such as pre-filing agreements; alternative dispute resolution; statute of limitations; account problems, and penalty issues. She also assists in representing clients before the IRS with an examination or appeal issue.

Prior to joining alliantgroup in December 2013, Kathy had 34 years experience in directing IRS compliance activities and providing tax controversy services. Her experience at IRS included positions as the Commissioner of the Small Business/Self–Employed Division (SB/SE); where she worked directly with small and mid-sized businesses and practitioners on compliance with IRS standards. She also served as Chief of Staff to the IRS Commissioner and help several executive positions in the Large and Mid-Size Business Division.


Led a pre-filing agreement engagement for a medical device company related to the medical device excise tax. This new tax resulted in large monthly tax assessments and determining amount of tax in related party situation was difficult. Worked with IRS team to develop a price that would be acceptable for sales to related parties.

Assisted multiple numbers of clients in determining FBAR filing requirements and helping to remediate the situation. This included advisory services as well as responses to IRS exams related to entity or signature authority filing requirements.

Assisted in resolving an employment tax liability in excess of $1 million. Client had payments applied to incorrect tax years and accounts resulting in large penalties also being assessed. Reviewed account and obtained penalty relief from agent upon presenting facts of case.

Participated in fast track meeting used to resolve a credit issue under exam by IRS. Client was a communications company that had filed claims and original returns with credits that were being disallowed by IRS. Resolved with over 70% of the credits being allowed.


Kathy has authored multiple presentations and continuing education seminars on topics designed to assist clients in resolving IRS disputes. She has written articles for the Journal of Tax Practice and Procedure and the Tax Adviser.


  • Certified Public Accountant, Virginia and District of Columbia License
  • AICPA, previously served as Chair of the AICPA IRS Practice & Procedures Committee
  • Virginia Society of Certified Public Accountants


Willard Office Building, 1455 Pennsylvania Avenue, N.W. Suite 300, Washington, D.C. 20004


  • B.S., Virginia Commonwealth University
  • M.B.A., University of Texas