As UK inheritance tax rules expand and US policy evolves, advisers are reassessing how internationally mobile families should approach wealth, residence and succession planning.
Read moreJoshua Rubenstein is a leading New York-based UHNW estate planning attorney with more than three decades of experience advising wealthy individuals, families, and family offices on complex succession and tax matters. Recognised globally as one of the foremost experts in private client law, he works with entrepreneurs, international families, and trustees to create robust estate and trust structures that preserve wealth across generations.
His practice focuses on cross-border estate planning, U.S. and international taxation, charitable giving, and dispute resolution involving trusts and estates. Joshua is particularly known for handling high-profile cases that involve multi-jurisdictional assets, sophisticated tax strategies, and sensitive family dynamics. He provides pragmatic yet innovative solutions tailored to ultra-high-net-worth (UHNW) clients whose needs extend beyond standard estate planning.
In addition to his advisory work, Joshua is a frequent speaker at global conferences and has published extensively on trust and estate topics. He has been quoted in leading financial and legal publications and regularly contributes thought leadership on emerging issues such as global mobility, family governance, and the evolving role of philanthropy in wealth management. His reputation for clarity, discretion, and technical expertise has earned him recognition in multiple international rankings and awards.
Joshua’s clients include prominent families, multinational business owners, private investors, and family offices seeking sophisticated strategies to safeguard and transition wealth. His ability to navigate the interplay of tax, law, and family considerations sets him apart as a trusted advisor in this specialist field.
Whether addressing complex U.S. estate tax issues, advising on charitable foundations, or structuring international trusts, Joshua brings both deep technical knowledge and a practical understanding of family dynamics. Based in New York, he continues to be a sought-after authority for UHNW clients and their advisors worldwide.
Read Joshua Rubenstein speaker thoughts at the Citywealth Forum
Three words that describe me: Private Wealth decathlete
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Citywealth recognises Joshua S. Rubenstein as a leading authority in private wealth and estate planning law. With decades of experience advising ultra-high-net-worth families, he is known for precision, pragmatism and trust. As Partner and National Chair of Katten’s Private Wealth Department in New York, Joshua unites planning, administration and litigation under one practice. His global outlook, calm leadership and technical expertise continue to set the benchmark for international estate and trust law.
Citywealth recognises Joshua S. Rubenstein as one of the world’s leading authorities in private wealth and estate planning law. Based in New York, and with decades of experience advising ultra-high-net-worth families, he is known for his precision, pragmatism and trust. As Partner and National Chair of Katten’s Private Wealth Department, Joshua unites planning, administration and litigation under one practice. His global outlook, calm leadership and technical expertise continue to set the benchmark for international estate and trust law.
















