Michael Sardar

Michael Sardar

Kostelanetz LLP

Recognized since 2023

New York, New York

Practice Areas

Litigation and Controversy - Tax

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Michael Sardar has extensive experience on a wide range of tax controversy and white collar criminal defense matters. Mr. Sardar represents clients in all stages of civil and criminal tax controversies before the Internal Revenue Service (IRS), state tax authorities, the Department of Justice, and local prosecutors.

Mr. Sardar also represents and advises taxpayers facing audits and investigations of noncompliance with IRS foreign bank and asset reporting requirements, utilizing his skill, creative thinking, and deep knowledge of the law in this area. In addition, Mr. Sardar has a great deal of experience representing corporate and individual taxpayers making voluntary disclosures of unreported income to the IRS and state tax authorities. He has also represented scores of clients with unreported foreign assets, enabling the repatriation of over half a billion dollars of offshore assets through the IRS Offshore Voluntary Disclosure Program, the Streamlined Compliance Procedures, and the IRS’ current Voluntary Disclosure Practice.

Mr. Sardar represents clients in criminal tax investigations, including those involving allegations of willful nondisclosure of foreign bank accounts and under-reporting of income. He also represents clients in various white collar criminal matters, such as customs fraud and bank fraud, and he advises clients in connection with internal investigations regarding corporate and entity noncompliance. Mr. Sardar represents taxpayers in New York State and City residency audits and investigations, including those involving the sourcing of income for multi-state taxpayers, and he has represented clients in connection with tax investigations conducted by the New York State Attorney General’s Office. Mr. Sardar has also advised many nonprofit organizations on federal and state tax issues including general tax exemption and Unrelated Business Income Tax (UBIT).

Mr. Sardar joined Kostelanetz LLP in 2009 and was named partner in January 2019. Prior to joining Kostelanetz, Mr. Sardar was an attorney with Heller Ehrman LLP, where his practice was focused on transactional tax matters.

Mr. Sardar graduated summa cum laude from Baruch College in 2004 with a bachelor’s degree in Business Administration and received his law degree from Cornell University Law School in 2007.

  • Seven World Trade Center, 34th Floor
    250 Greenwich Street
    New York, NY 10007
  • Baruch College, BBA
  • Cornell University, JD

Recognized in The Best Lawyers in America® 2024 for work in:
  • Litigation and Controversy - Tax
Special Focus:
  • Litigation
Additional Areas of Practice:
  • Criminal Defense: White-Collar
  • Tax Law


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