A deep and diverse practice focused on maximizing tax efficiencies and minimizing tax risks for clients nationally and internationally.

With lawyers who are recognized globally as leading practitioners in the field, our team advises clients on the tax implications of domestic and international transactions, including mergers, acquisitions, financings, investments, joint ventures and restructurings. Widely known for our work with tax-exempt organizations, we advise such clients on an array of issues presented by their tax-exempt status. We also represent clients in seeking favorable guidance and rulings from the IRS and state tax authorities, and defend them in tax litigation and audits. In addition, we counsel clients in every industry on the design of executive compensation arrangements and on compensation and benefits issues in general.

Wethly, Kimberly B.

Kimberly B. Wethly

Chair, Tax Practice Group

+1 617 526 6481 (t)


Burke, Robert D.

Robert D. Burke


+1 617 526 6470 (t)


Holland, Paula

Paula Holland


+44 (0)20 7645 2518 (t)


Kilgore, R. Scott

R. Scott Kilgore


+1 202 663 6116 (t)


Null, Amy A.

Amy A. Null


+1 617 526 6541 (t)


Ritt, Roger M.

Roger M. Ritt


+1 617 526 6475 (t)


Schnall, Matt

Matthew Schnall


+1 617 526 6892 (t)


Wethly, Kimberly B.

Kimberly B. Wethly


+1 617 526 6481 (t)



Our tax practice encompasses areas including mergers and acquisitions, international and domestic tax planning, compensation and benefits, private equity and hedge funds, federal and state tax controversies and litigation, and tax exempt organizations. Recently, we have:

  • structured US and cross-border mergers and acquisitions involving public and private companies;
  • advised fund sponsors on the off-shore and on-shore structure and operation of private equity and hedge funds for domestic, foreign and tax-exempt investors;
  • assisted with the cross-border restructuring of equity and compensation plans in connection with multi-national companies’ acquisitions of US subsidiaries;
  • defended clients before the IRS regarding tax benefits claimed with respect to offshore investments;
  • advised universities, museums, social welfare organizations and other entities on novel tax issues presented by their nonprofit status; and
  • provided guidance and assistance to public and private companies in drafting and implementing equity compensation plans and other nonqualified incentive compensation arrangements.

Publications & News


November 4, 2014

U.S. News – Best Lawyers® Release 2015 “Best Law Firms” List, Names WilmerHale International Arbitration “Law Firm of the Year”

The 2015 U.S. News - Best Lawyers® "Best Law Firms" list includes WilmerHale being named a first-tier law firm in 24 national and 62 metro-area rankings. In addition, the firm boasts more than 20 second- and third-tier rankings in several national and metro-area rankings.

October 22, 2014

Progress Software Announces Intent to Acquire Telerik

WilmerHale client Progress Software Corporation announced that it has entered into a definitive agreement to acquire privately held Telerik AD, a leading provider of application development tools.

October 7, 2014

Park Square, EY and WilmerHale Release 15th Annual Tech and Life Sciences Compensation and Entrepreneurship Study

According to an executive compensation study of private businesses released today, non-founder C-suite executives at life sciences and healthcare companies saw their cash compensation increase by 4.2 percent year-over-year, while comparable executives at private technology firms experienced an average increase of 3 percent.

July 21, 2014

WilmerHale Welcomes Experienced Tax Partner To Boston Office

WilmerHale is pleased to welcome Matthew Schnall as a partner in the Boston office and a member of the Tax Practice Group. Schnall is a versatile tax lawyer who brings with him more than 20 years of experience handling complex tax issues for a variety of clients.

May 23, 2014

Chambers USA Ranks Top WilmerHale Lawyers and Practices in 2014 Edition

We are pleased to announce the names of the individuals and practice areas that are ranked in the 2014 edition of Chambers USA: America's Leading Lawyers for Business.

January 7, 2014

WilmerHale Represents Thermo Fisher Scientific in Transaction with GE Healthcare

Thermo Fisher has agreed to sell its cell culture (sera and media), gene modulation and magnetic beads businesses to GE Healthcare for approximately $1.06 billion.

December 2, 2013

Washingtonian Magazine Names 14 WilmerHale Attorneys to "Best Lawyers" List

November 1, 2013

WilmerHale Among U.S. News – Best Lawyers® “Best Law Firms” and Again Named International Arbitration “Law Firm of the Year”

The 2014 edition of the U.S. News – Best Lawyers® “Best Law Firms” list names WilmerHale as “Law Firm of the Year” in International Arbitration—this is the second consecutive year that the firm has won this honor—and honors WilmerHale as a first-tier law firm in 27 national and 60 metro-area rankings.

October 15, 2013

Lessons Learned from the Short-Lived Computer Services Tax

As has been widely reported, the newly enacted statute expanding the Massachusetts sales tax to cover certain computer and software services (the Computer Services Tax) has been repealed after a substantial outcry from businesses, the Massachusetts Taxpayers Foundation and others.

September 20, 2013

Massachusetts DOR Extends Due Date for First Reporting of Sales and Use Tax on Computer and Software Services

As a result of a number of public statements from senior government officials indicating that the recently enacted sales and use tax on computer and software services is likely to be repealed in the near future, the Massachusetts Department of Revenue announced that it was extending the due date for the first reporting of such tax to October 20, 2013.


  • Chambers USA: America's Leading Lawyers for Business – Recognized our Massachusetts Tax Practice in 2010-2014, praising our practice as having "a lot of depth and high quality across the board" and offering "strategic, practical advice on solving the matter expeditiously." WilmerHale has been similarly ranked in previous editions of Chambers USA and has individually recognized Richard Andersen, William Caporizzo, Robert Burke, Roger Ritt and Richard Giuliani as leaders in their field.
  • Best Lawyers in America –  Recognized nearly 100 partners, naming nine "Lawyer of the Year" in the 2015 edition of their peer-review publication, which includes the recognition of eight lawyers in our tax practice
  • Best Lawyers in America – Named William C. Benjamin, Richard W. Giuliani, Roger M. Ritt and F. David Lake Jr. as "Best Lawyers" in the area of Tax in 2010 and named Roger M. Ritt "Boston Tax Lawyer of the Year" in 2009
  • U.S. News - Best Lawyers® – In the 2010-2015 "Best Law Firms" rankings, our tax law practice was ranked in the first-tier nationally and in Boston, and in the second-tier in New York
  • Who’s Who Legal – Recognized our tax lawyers as among "the world’s leading tax practitioners”
  • Articles published by members of our tax practice address a wide variety of topics, including Internet taxation, executive compensation, employee benefits, international taxation, and state and local taxation.
  • Our tax partners frequently present at conferences sponsored by leading professional organizations in the field. These include the American Bar Association, Boston Bar Association, CompStudy.com, BIO General Counsel Committee, MassMEDIC, NASDAQ, the National Association of Stock Plan Professionals and the Venture Capital CFO Symposium.