Atty. A. William "Bill" Caporizzo
Bill Caporizzo is a leading lawyer and CPA who helps both private and public companies navigate the complex tax issues they often face. For more than 35 years, Mr.
Profile Summary
About A. William "Bill" Caporizzo at a glance
A. William "Bill" Caporizzo is a tax attorney based in Boston, Massachusetts, practicing at Wilmer Cutler Pickering Hale and Dorr LLP. Admitted to practice in Massachusetts, Massachusetts Bar Association and Connecticut, Connecticut Bar Association. Educated at Boston University School of Law (J.D., 1985) and University of Pennsylvania (BS). Recognitions include Best Lawyers in America — Tax Law (2026) and Best Lawyers in America — Awards: (2026). Serands clients in Boston, MA and the surrounding metropolitan area.
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About
- Bill Caporizzo is a leading lawyer and CPA who helps both private and public companies navigate the complex tax issues they often face
- For more than 35 years, Mr. Caporizzo has been regularly called upon to represent clients on the tax implications of domestic and cross-border corporate mergers, spin-offs, acquisitions and dispositions, partnerships and joint ventures, and restructurings
- He also advises corporate clients on capital market transactions, venture financings and fund formations
Practice Areas Explained
A. William "Bill" Caporizzo's Areas of Practice
Each practice area below reflects the types of cases A. William "Bill" Caporizzo handles, with a brief overview of what that area of law covers.
Tax attorneys handle IRS audits, tax debt, international tax, estate planning, and tax court litigation.
A. William "Bill" Caporizzo is one of 85,302 tax attorneys indexed nationally. Browse tax attorneys in Massachusetts →
Jurisdictional Context
Why local counsel matters in Massachusetts
Practicing law in Massachusetts. Legal matters in Massachusetts are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Boston are typically filed in the local municipal court or the appropriate Massachusetts state district court, depending on subject matter and amount in controversy. An attorney licensed in Massachusetts brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Massachusetts courts without local counsel or pro hac vice admission.
Looking for additional Massachusetts attorneys? Browse all attorneys in Boston or all attorneys in Massachusetts.
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