Kathryn Bibbo

Kathryn Bibbo

Tax Law Litigation and Controversy - Tax
Recognized Since Recognized in Best Lawyers since 2017

About Kathryn

Kathryn is a shareholder of the firm and a member of the firm’s Tax Practice Group, where she concentrates her practice in assisting clients with state and local tax matters. Kathryn’s practice focuses on matters before the New Hampshire Department of Revenue Administration, the Massachusetts Department of Revenue, and the Vermont Department of Taxes.

Prior to joining the firm in 2007, she was with the state and local tax practice of PricewaterhouseCoopers, LLP in its Chicago office. She specialized in income/franchise tax consulting and audit defense for multistate and multinational businesses. Prior to then, Kathryn served as Special Assistant Attorney General for the Income Tax Litigation Unit of the Illinois Department of Revenue.

Kathryn has represented clients on numerous state and local tax matters in the New England states, including but not limited to:

In 2017, Kathryn was selected to be included in Best Lawyers in America in the area of tax law. Kathryn is a regular speaker and author on state tax topics in New England, including but not limited to:

Kathryn is presently on the Board of Trustees for the New England State and Local Tax Forum, a member of the Vermont Tax Advisory Board appointed by the Commissioner of Taxes to represent business interests, and serves as co-contributor for the New Hampshire and Vermont state tax developments for Council on State Taxation (COST) in Washington, D.C.

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Reviews

4.6 / 5

0 Reviews

1,005 Profile Views

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Liam Thompson

Jan 07, 2026

Top Tier Tax Attorney - Worth Every Penny

Kathryn is a powerhouse when it comes to state and local tax law. She successfully defended us against a significant audit and saved us a substantial amount of money. Her legal skills, combined with h...

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Olivia Davis

Jan 07, 2026

Great service, excellent knowledge

Kathryn handled my case with great care and attention to detail. She is very knowledgeable about New England tax laws and always explained things clearly. Would recommend to others.

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Daniel Garcia

Jan 07, 2026

A True Professional with Deep Expertise

I engaged Kathryn for advice on structuring a business move involving tax implications across multiple New England states. Her insights were critical in minimizing our tax liabilities and ensuring a s...

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Jessica Brown

Jan 07, 2026

Excellent Communication and Strategic Thinking

I appreciated Kathryn's proactive approach to my tax matters. She consistently kept me informed about the status of my case and offered strategic advice that helped me achieve the best possible outcom...

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Robert Johnson

Jan 07, 2026

Best Tax Lawyer I've Worked With – Clear and Effective

Kathryn Bibbo is simply the best! She took the time to thoroughly understand my complex tax situation and provided clear, actionable advice. Her representation before the New Hampshire Department of R...