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 2025

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

A new transatlantic firm under the name of Winston Taylor is expected to go live in May 2026 with more than 1,400 lawyers and 20 offices
As ITR’s exclusive data uncovers in-house dissatisfaction with case management, advisers cite Italy’s arcane tax rules
The new guidance is not meant to reflect a substantial change to UK law, but the requirement that tax advice is ‘likely to be correct’ imposes unrealistic expectations
Taylor Wessing, whose most recent UK revenues were £283.7m, would become part of a £1.23bn firm post combination
China and a clutch of EU nations have voiced dissent after Estonia shot down the US side-by-side deal; in other news, HMRC has awarded companies contracts to help close the tax gap
An EY survey of almost 2,000 tax leaders also found that only 49% of respondents feel ‘highly prepared’ to manage an anticipated surge of disputes
The international tax, audit and assurance firm recorded a 4% year-on-year increase in overall turnover to hit $11bn
Awards
View the official winners of the 2025 Social Impact EMEA Awards
CIT as a proportion of total tax revenue varied considerably across OECD countries, the report also found, with France at 6% and Ireland at 21.5%
Erdem & Erdem’s tax partner tells ITR about female leader inspirations, keeping ahead of the curve, and what makes tax cool
Gift this article