Sarah B. Lawsky

Benjamin Mazur Summer Research Professor of Law
Associate Dean of Academic Programs
Associate Dean of Finance


Sarah Lawsky is Professor of Law at Northwestern Pritzker School of Law. She teaches or has taught federal income tax, corporate tax, partnership tax, tax policy, tax deals, and contracts. Her research focuses on tax law and on the application of formal logic and artificial intelligence to the law.

Prior to joining Northwestern Pritzker in 2016, Lawsky taught at UC Irvine School of Law and George Washington University Law School, and as an adjunct in NYU’s tax LL.M. program. Before beginning her teaching career, she practiced tax law in New York.

Lawsky received her B.A. from the University of Chicago, her J.D. from Yale Law School, her LL.M. in tax from NYU School of Law, and her Ph.D. in philosophy from the UC Irvine Department of Logic and Philosophy of Science.

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Areas of Expertise

  • Tax Law
  • Law and Philosophy

Selected Publications

  • Formalizing the Code in 70 tax law review 377 (2017).
  • A Logic for Statutes in 21 florida tax review 60 (2018).
  • Modeling Uncertainty in Tax Law in 65 stanford law review 241 (2013).
  • The Problem of Line Drawing in 98 iowa law review bulletin 42 (2013).
  • How Tax Models Work in 54 boston college law review 1657 (2012).
  • On the Edge: Declining Marginal Utility and Tax Policy in 95 minnesota law review 904 (2011).


  • AB, University of Chicago
  • JD, Yale Law School
  • LLM, New York University School of Law
  • PhD, University of California - Irvine

Prior Appointments

  • Professor of Law, Northwestern Pritzker School of Law
  • Professor of Law, 2012-2016, University of California, Irvine
  • Senior Associate Dean for Academic Affairs, 2014-2016, University of California, Irvine
  • Assistant Professor of Law, 2010-2012, University of California, Irvine
  • Associate Professor of Law, 2007-2010, George Washington University Law School

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