Wollman moves from Sullivan & Cromwell to IRS; Schnabel succeeds as NYSBA tax section chair

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

Wollman moves from Sullivan & Cromwell to IRS; Schnabel succeeds as NYSBA tax section chair

fotoflexer-photoirs.jpg

Diana Wollman, a former partner of Sullivan & Cromwell, begins her new job today as director, international strategy in the Large Business and International division of the Internal Revenue Service.

She will report to Michael Danilack, deputy commissioner (international), and will be, said a recent internal e-mail, his principal adviser on a wide range of high-level and sensitive international issues and will oversee the development and implementation of all aspects of the IRS’s international strategic programme, including risk assessment, data management, trend analysis, training, and knowledge management capabilities, as well as assisting in developing and maintaining key contacts outside the Service.

At Sullivan & Cromwell, she specialised in the tax aspects of complex international transactions, managing tax audits and controversies, and handling clients’ other interactions with tax authorities.

David Schnabel will succeed Wollman as chairman of the tax section of the New York State Bar Association. He is a partner of Debevoise & Plimpton specialises in corporate M&A, acquisition financing and private fund formation.

more across site & shared bottom lb ros

More from across our site

Landmark legal updates in India have led companies to prioritise specialised tax advisers over accountants, ITR has found
Brazil’s shift to a nationwide consumption tax is more than conceptual; it fundamentally transforms municipal revenue, enforcement, and administrative disputes
While some advisers praised the ruling’s definition of a ‘voucher’ for VAT purposes, a UK partner said the case left unanswered questions
While pillar two has been enacted on paper in Brazil, companies are encountering a range of practical compliance issues, ITR has heard
Moore, founding partner of the Chicago tax boutique which bears her name, shares her career wisdom for ITR’s new Women in Tax interview series
But partners at the firm admit that jumping ship to the US would not be as easy as some believe
Governments are rewriting tax policy for the AI era, deploying digital taxes, tailored incentives and algorithmic enforcement that redefine where value is created
Wingrove will succeed Bill Thomas, who has served in the role since 2017; in other news, Andersen unveiled a sharp increase in revenues for 2025
Partners are divided on Italy vs PDM D’s analytical depth, evidentiary standards, and what the judgment signals for future intra-group financing cases
As GCCs increasingly become strategic hubs, multinationals face heightened risks around permanent establishment and place of effective management
Gift this article