Dan McGuire is a Principal in Ryan’s State Income and Franchise Tax Consulting practice, based in the Firm’s Washington, D.C. office. He advises clients on complex state income and franchise tax matters, helping organizations manage multistate tax obligations, navigate regulatory change, and align tax strategy with broader business objectives. Dan works closely with corporate tax departments and executive stakeholders to develop practical, technically sound solutions that support compliance, reduce risk, and improve operational efficiency.
With more than 30 years of experience in state and local tax consulting, Dan brings extensive leadership experience from Big Four and national advisory environments. He has advised clients across a broad range of industries on complex tax planning, controversy, compliance, and restructuring matters, combining deep technical expertise with a pragmatic and client-focused approach. Known for his disciplined analysis and collaborative leadership style, Dan helps organizations address evolving state tax challenges with clarity and confidence while delivering measurable long-term value.
Education and Qualifications
Juris Doctor, University of Maryland Francis King Carey School of Law
Bachelor of Business Administration, Accounting, Loyola University Maryland
Certified Public Accountant, state of Maryland (Ryan is not a CPA firm.)
Admitted to the Maryland Bar (Ryan is not a law firm.)
Experience and Achievements
Principal, State Income/Franchise Tax Consulting, Ryan, Washington, D.C. office
Advises clients on multistate income and franchise tax consulting matters
Supports tax planning, compliance, controversy, and restructuring initiatives
Provides strategic guidance on complex state tax regulatory and operational challenges
Partner, KPMG US
Led state and local tax consulting engagements for multinational and domestic clients
Advised organizations on complex income and franchise tax planning and controversy matters
Senior Manager, EY
Managed multistate tax consulting and compliance engagements across multiple industries
Manager, Arthur Andersen & Co.
Advised clients on state and local tax planning and compliance matters
Member, Board of Trustees, Maryland Science Center
Former Member, Board of Directors, Media Financial Management Association