Sue Shaughnessy

Sue Shaughnessy, CPA, MST

IRS Representation Specialist
Areas of Expertise

Sue Shaughnessy, a tax supervisor and IRS representation specialist at Thompson Greenspon, has been with the firm since 1997. Prior to joining Thompson Greenspon, she worked seven years as a Senior Internal Revenue Agent with the IRS. Her experience with the IRS has been a key component in her ability to address and successfully resolve Examination and Collection issues for our clients.

Sue is primarily responsible for resolving client issues with Federal and State Taxing Authorities involving both Collection and Examination issues. For the past 10 years, she has worked extensively with both business and individual clients to settle outstanding income tax and employment tax liabilities with Collection by negotiating Installment Agreements, Offers in Compromise and Penalty Abatement Requests. She has also represented clients at both the state and federal level on the Examination of income tax returns, employment tax returns and sales tax returns. With both Collection and Examination issues, Sue has taken issues to the Appeals level, and worked effectively with Appeals Officers to resolve client’s disputes.

Throughout her career, Sue participates in continuing education programs and annually attends a local IRS liaison day to maintain relationships with IRS personnel.

Specializes In


  • American Institute of Certified Public Accountants (AICPA)
  • Virginia Society of Certified Public Accountants (VSCPA)


  • BS, Accounting, Villanova University
  • MS, Taxation, George Mason University

Published Posts

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