Charles Rettig confirmed as IRS 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

Charles Rettig confirmed as IRS chief

People Thumbnail

The US Senate Finance Committee has confirmed California tax attorney Charles Rettig will be the next head of the Internal Revenue Service (IRS).

As an attorney, Rettig has specialised in tax planning, litigation and controversy. He has 36 years of experience in private practice, serving as principal at Hochman Salkin Rettig Toscher & Perez in Beverly Hills. Rettig will replace acting IRS chief David Kautter, who took office when John Koskinen stepped down in November 2017.

Kautter was EY’s national director for 10 years and later joined RSM US as the firm’s national tax leader. Kautter has overseen the first steps to provide guidance on US tax reform, including the rules on Section 965 and foreign earnings.

The interim period was meant to last for 120 to 190 days, but it has stretched across 11 months since Koskinen stepped down. The first hearing on Rettig's nomination was in June, though the Democrats set out to block his confirmation over concerns that the Trump administration was concealing the identity of their donors.

The decision to appoint Kautter was not uncontroversial at the time either. During Kautter’s tenure as EY’s national director, the Big 4 firm faced a scandal over claims it was running illegal tax shelters for 200 clients. It should be noted that Kautter was never implicated in any wrongdoing.

The confirmation of a new commissioner brings this long transition to a close. Kautter will continue to serve as the US Treasury’s top tax policy adviser.

more across site & shared bottom lb ros

More from across our site

As AI becomes increasingly intuitive and idiot-proof, its tax applicability is becoming impossible to overstate
New data on public CbCR showed uneven adoption, as Singapore advanced pillar two compliance and firms expanded their tax capabilities
Nearly two years after its publication, the Corporate Tax Roadmap is reshaping the UK’s TP framework through incremental reforms focused on scope, transparency and earlier HMRC intervention
With a stark divergence between MNEs that prepared early and those rushing to catch up, advisers must remain agile with all manner of compliance risks
The EU agreed new cooperative and investigative measures to tackle VAT fraud, while Hungary faced legal action and Lavez Coutinho expanded its indirect tax team
The arrival of a team from Brazilian rival Costa Tavares Paes Advogados brings SiqueiraCastro’s tax headcount to seven partners and 30 associates
CSR initiatives can sometimes venture into virtue signalling, but Ryan’s tax literacy event for schoolchildren was a genuine and necessary endeavour
Grant Thornton advanced plans to integrate its Australian firm into its US arm, as tax developments spanned law firm hires, aviation levies and digital services taxes
A new focus on early intervention and increased AI use is transforming how tax authorities are approaching TP audits, though capacity-constrained jurisdictions risk falling behind
The French administration has used AI to detect undeclared swimming pools and verandas but always includes a human in the loop, the AI in Tax Forum heard
Gift this article