EY hires Koch as new Americas tax policy chief

International Tax Review is part of Legal Benchmarking Limited, 1-2 Paris Garden, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

EY hires Koch as new Americas tax policy chief

Harry Reid, the Democrats' leader in the US Senate, has lost his chief adviser on tax and economic policy to EY.

Cathleen Koch is to join EY as Americas tax policy leader, where she will be responsible for developing the Big 4 firm's capabilities on the subject in more than 30 countries in the Americas. She will also advise clients on US, Americas and global tax policy matters.


Koch has worked on almost every Congressional tax and budget measure since January 2013, when she joined Senator Harry Reid's staff. Before this she was tax chief at the Senate Finance Committee, where she led the work on legislation such as the Troubled Asset Relief Programme, the American Recovery and  Reinvestment Act and the Affordable Care Act. She was also senior tax policy adviser and staff director of the Finance Subcommittee on Energy, Natural Resources and Infrastructure.


Koch was director of tax policy and senior tax adviser for General Electric, the industrial and financial services group, and director of global government affairs for Amgen, the biotechnology company.

more across site & shared bottom lb ros

More from across our site

The firm’s eye-catching UK launch is a major statement of intent, but it will face stern opposition in its quest to be the top global tax player
The postponement came after industry representatives flagged implementation issues with the registration regime; in other news, firms made key tax partner additions
Despite the increased yield, the time taken to resolve enquiries was at a six-year high, new HMRC statistics have revealed
The High Court’s dismissal of barrister Setu Kamal’s legal challenge represents the first successful strike-out under a new law on SLAPPs
IP lawyers, who say they are encouraging clients to build up ‘tariff resilience’, should treat the risks posed by recent orders as a core consideration in cross-border licensing
As Coca-Cola awaits a crucial 11th Circuit Court of Appeals decision this year, its multibillion-dollar tax dispute could have profound implications for investors, cash flow, and corporate transparency
However, women in tax face greater career obstacles than their male counterparts, an exclusive ITR survey of more than 100 women tax leaders revealed
Under Jeff Soar’s leadership, WTS UK aims to scale to 100 partners within five years and challenge the big four
As the firm embarks on a major shakeup of its EMEA partnerships, some staff will be watching nervously
The buyout of Hucke and Associates continues Ryan’s streak of firm acquisitions; in other news, a UK appeal against VAT on private school fees was dismissed
Gift this article