Prentiss Willson

Of Counsel
Sacramento,  CA  U.S.A.

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AV® Preeminent

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Practice Areas

  • Tax
  • Tax Controversy & Litigation
  • State and Local Tax
Contact InfoTelephone: 916.241.0500
Fax: 916.241.0501
University Occidental College, A.B.
Law SchoolHarvard Law School, J.D.
Admitted1969, California
BornSeptember 20, 1943

With more than 40 years of experience in state and local tax, Prentiss Willson is widely recognized as the dean of California taxation, having participated in approximately a dozen state and local tax cases before the U.S. Supreme Court and represented hundreds of taxpayers in disputes in California and across the country.
Prentiss began his career at Morrison & Foerster LLP, where at various times he was managing partner of the San Francisco office, chair of the firm's tax department and chair of the firm's state and local tax group. In 1998, he moved to Ernst & Young LLP as partner and national director of state and local tax practice and procedure. After retiring from Ernst & Young in 2002, Prentiss started his own law practice advising clients across the country, and he began working with Sutherland in 2012.
A frequent speaker and author on state and local taxation, Prentiss taught tax courses at Stanford Law School, University of San Francisco Law School and Golden Gate University Graduate School of Taxation.

Awards and Rankings

Recipient, The California State Bar Benjamin F. Miller Award (2014)

Recipient, The California State Bar Joanne Garvey Award for Lifetime Service to the Bar (2010)

Recipient, BNA's Franklin C. Latcham Award for Distinguished Service in State and Local Tax Law (2009)

Recognized by the National Law Journal as one of the 40 top tax lawyers in America (1981)


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Massachusetts Issues Final Revised Market-Sourcing Regulation; Multistate Tax Commission Working Group Continues Project Based on Massachusetts Regulation
Robert P. Merten,Prentiss Willson, February 13, 2015
Massachusetts has published its final revised market-sourcing regulation (830 CMR 63.38.1), effective for tax years beginning on or after January 1, 2014. The final revisions to these rules, among other things, conform the regulation with recent state law amendments requiring taxpayers to use...

Sometimes, Breaking Up Isn't Hard To Do: Florida Grants Taxpayer's Request for Deconsolidation
Sahang-Hee Hahn,Prentiss Willson, December 12, 2014
The Florida Department of Revenue permitted a taxpayer to discontinue filing Florida consolidated corporate income tax returns because the taxpayer established that its affiliated group’s business focus had changed significantly since making its election. In Florida, a parent corporation may...

Developmental Costs: Texas Comptroller Rules Essential Preparatory Costs Cannot Be Accounted for in Apportionment Factor
Ted W. Friedman,Prentiss Willson, October 3, 2014
The Texas Comptroller determined that for Texas franchise tax purposes the apportionment factor of an out-of-state taxpayer engaged in the provision of technical training could not be adjusted to account for certain costs incurred in preparing and marketing the training sessions. The training...

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Office Information

Prentiss Willson

500 Capitol Mall, Suite 2500
SacramentoCA 95814


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