Capitol Hill veteran George Callas joins Steptoe & Johnson

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

Capitol Hill veteran George Callas joins Steptoe & Johnson

people move 2 big

George Callas has joined Steptoe & Johnson as managing director in the firm’s Washington DC office.

Callas will serve in the firm’s government affairs and public policy and tax groups.

Prior to joining Steptoe & Johnson, he was a senior tax counsel to Speaker of the House Paul Ryan and among the chief architects of the Tax Cuts and Jobs Act legislated in December 2017.

Speaker Ryan has said about Callas:He laid the groundwork for our eventual success with his early work on draft reform legislation while at the Ways and Means Committee, and he drove us over the finish line as my senior tax counsel in the Speaker’s Office. 

Callas is a Capitol Hill veteran who spent 15 years working on tax issues at the committee level and for Republican leadership.

The firm expects Callas to provide great value to clients, from large multinational corporations to trade associations, in navigating the new US tax laws.



more across site & shared bottom lb ros

More from across our site

Australia’s Department of Finance will also commission an independent review of KPMG’s governance, culture, ethics and integrity frameworks, it has revealed.
In the second instalment of this two-part series, Jayne Stokes takes a practical approach to navigating the capital v revenue question for UK R&D claims for software development, and shares pointers for businesses
ITR's latest podcast considers how transformational the buyout could be in Ryan's quest for global advisory reach and analyses a recent boom in demand for private client advisory services
The event comes at an important moment for professionals dealing with practical realities related to this practice area
Germany’s dogmatic restriction of third-party investment in tax advisory firms will only serve to slow down innovation and access to justice
The Irish government has been told that it’s spending too much of its corporation tax receipts and should instead focus on running bigger surpluses; plus, the IRS is set to merge tax practitioner offices
A company risks double taxation, penalties and inquiry cost if it submits a form with anomalies under the new system, Asker Ali also tells ITR
Arindam Mitra and Robin Hart examine how aggregate TP rules clash with transaction-level customs rules, creating compliance risks and requiring granular, SKU-level pricing strategies
The scandal has come just three years after the PwC tax leaks controversy and has prompted KPMG’s Australian chief executive to resign
In the first of a two-part series on capital v revenue in R&D, Jayne Stokes explores these key concepts and where UK companies need to tread carefully
Gift this article