
Ernst & Young LLP (EY US) has appointed Martin Fiore as the Americas vice-chair of tax, effective 1 July.
Fiore will succeed Kevin Flynn, who has led the business since 2022 and is set to retire at the end of the fiscal year.
Fiore, currently serving as EY Americas deputy vice-chair – Tax, will be based in New York.
In the new role, Fiore will supervise tax strategy and client services, leading a team of more than 18,000 professionals across Canada, the US, North, Central and South America, Israel and the Caribbean.
He will also join the US Management Committee, the Americas Operating Executive and the Global Practice Group during what EY described as “a time of pivotal policy reform”.
In his previous positions, Fiore has been credited with guiding EY US and its clients through geopolitical changes and technological advancements including AI, impacting tax.

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By GlobalDataHis experience includes serving as US-East region tax managing partner and EY Americas tax talent leader.
Fiore is a 31-year veteran of EY US and has been involved in the Americas Inclusiveness Advisory Council.
Fiore said: “I am honoured and excited to be chosen to lead our tax practice. And I feel privileged to inherit the exceptional work of my predecessor, Kevin Flynn.
“I will continue to embrace the technological changes needed to transform tax across compliance, reporting and law while keeping our people at the centre.”
Meanwhile, in the UK, the Financial Reporting Council (FRC) is investigating EY for its auditing of the Post Office during the Horizon software scandal.
The FRC’s investigation will focus on the role of statutory auditors in meeting the auditing standards at the time, excluding broader issues related to the Horizon IT system.
Recently, the FRC sanctioned EY and audit partner Christopher Voogd for breaches in the statutory audit of Stirling Water Seafield Finance for the year ending 31 December 2019.
EY exceeded the ten-year audit limit for a Public Interest Entity without a public tender, violating company law and the FRC’s Mandatory Firm Rotation requirements.
Both EY and Voogd failed to adhere to proper procedures for audit engagement, contravening International Standards for Auditing, according to the FRC.