Larry Katzenstein is a nationally recognized authority on estate planning, charitable giving, and exempt organizations and as an advisor to charitable organizations.
He has spoken frequently to professional groups across the country, including at American Law Institute estate planning programs, the Notre Dame Tax Institute, the University of Miami Heckerling Estate Planning Institute, and the Southern Federal Tax Institute. Larry has served as an adjunct professor at Washington University School of Law, where he has taught estate and gift taxation and fiduciary income taxation. He is on the American Council on Gift Annuities board of directors where he chairs the research committee and serves on the rates committee.
Larry is also the creator of Tiger Tables actuarial software, which is widely used by tax lawyers and accountants and is well-known as a unique tool for those professionals. He is also technical advisor to NumberCruncher software. He has also testified in United States Tax Court on actuarial issues, including prominently in a case involving the estate of Kenneth Lay.
Larry is a fellow of the American College of Trust and Estate Counsel and a member of its Charitable Planning and Fiduciary Income Committees and has served as a member of the advisory board of the New York University National Center on Philanthropy and the Law. He is co-author of the Bloomberg (formerly BNA) Tax Management Portfolio Charitable Remainder Trusts, Charitable Gift Annuities, and Pooled Income Funds.
Professional
- Missouri Bar
- American Bar Association, Section of Taxation
- Bar Association of Metropolitan St. Louis
- American College of Trust and Estate Counsel
- National Association of College and University Attorneys (NACUA)
- New York University School of Law, National Center on Philanthropy and the Law
Community
- Citizens for Modern Transit
- General Counsel, Board Member
- Saint Louis Symphony Orchestra
- Trustee, General Counsel, and Member of Executive Committee
- Saint Louis Zoo Association,
- Past Board of Trustees Member, and Past Member of Executive Committee
- American Civil Liberties Union of Eastern Missouri
- Former President and Board Member
- Radio Arts Foundation
- Board Chair
- American Council on Gift Annuities
- Board Member, chair of Research committee, member of rates committee
- Recipient of the Hartman Axley Lifetime Service Award, National Association of Estate Planning Councils, November 2023
- Listed in Chambers High Net Worth Guide and Chambers USA, 2009-2024 (by Chambers & Partners)
- Listed in Missouri & Kansas Super Lawyers, 2005-2019 (by Thomson Reuters)
- Listed in The Best Lawyers in America, 1989-2024 (by BL Rankings)
- Named Lawyer of the Year for Non-Profit/Charities Law in St. Louis by Best Lawyers, 2011, 2015, 2024, 2025 (by BL Rankings)
- Named Lawyer of the Year for Trusts and Estates in St. Louis by Best Lawyers, 2010, 2013 (by BL Rankings)
My passions outside the office (other than my wife and daughter!) include international travel and hiking, food and cooking, and classical music. I’ve been a passionate lover of classical music all my life, enjoy playing piano, and once a year for many years have been fortunate enough to conduct a concert of our fabulous Saint Louis Symphony Orchestra for clients and friends. Recent works on my programs have included the first symphonies of Dmitri Shostakovich and Jean Sibelius.