Kathryn Bibbo

Kathryn Bibbo: Leading Tax Litigation Attorney in New Hampshire

Kathryn Bibbo is a seasoned and highly respected tax attorney specializing in complex state and local tax matters for businesses operating in New England. As a shareholder and member of the Tax Practice Group at her firm, Ms. Bibbo brings a wealth of experience and a strategic approach to representing clients before key state agencies, including the New Hampshire Department of Revenue Administration, the Massachusetts Department of Revenue, and the Vermont Department of Taxes. Her deep understanding of tax regulations and her proven ability to navigate intricate legal challenges make her a trusted legal counsel for businesses seeking to minimize their tax liabilities and defend against potential disputes.

Prior to her current role, Kathryn's expertise was honed at PricewaterhouseCoopers, LLP, where she focused on income/franchise tax consulting and defense for a diverse portfolio of multinational and multistate businesses. This experience provided her with a comprehensive understanding of complex tax systems and sophisticated audit defense strategies. Further bolstering her capabilities, Kathryn previously served as Special Assistant Attorney General for the Income Tax Litigation Unit of the Illinois Department of Revenue, sharpening her skills in representing the state's interests in high-stakes tax disputes.

Ms. Bibbo’s track record speaks for itself. She has consistently represented clients across a broad range of state and local tax matters throughout New England. Her expertise covers critical areas such as nexus determinations, sales and use tax compliance, property tax assessments, franchise tax disputes, and more. She is particularly adept at advising clients on strategic tax planning to mitigate risk and optimize financial performance.

Recognition and Awards

Kathryn’s dedication to excellence has been widely recognized within the legal community. She was selected to be included in Best Attorney USA** in the area of tax law in 2017 and again in 2020 and 2023, reflecting her standing as a leading tax attorney. She has consistently been awarded Lawyer of the Year** for both Tax Law and Litigation and Controversy – Tax by the Concord Bar Association, further solidifying her reputation as a top legal professional.

Key Contributions to the Tax Community

Beyond her direct client representation, Kathryn is deeply engaged in the broader tax community. She currently serves on the Board of Trustees for the New England State and Local Tax Forum, demonstrating her commitment to promoting best practices and knowledge sharing. As a member of the Vermont Tax Advisory Board, appointed by the Commissioner of Taxes, she actively represents business interests within the state. Her ongoing contributions to the legal community include serving as a co-contributor for the New Hampshire and Vermont state tax developments for Council on State Taxation (COST) in Washington, D.C., ensuring that clients are always informed about the latest legislative and regulatory changes.

Professional Credentials & Affiliations

Practice Areas: Ms. Bibbo’s expertise encompasses:

• Tax Law**
• Litigation and Controversy – Tax**

Education & Bar Admissions:

• Bar Admissions: Admitted to the bars of New Hampshire, Massachusetts, and Vermont.
• Recognition: Recognized in Best Attorney USA since 2017.

If you require experienced legal counsel for complex state and local tax matters in New Hampshire or throughout New England, Kathryn Bibbo is a dedicated and results-oriented attorney prepared to protect your interests and achieve optimal tax outcomes.