What's Happening?
DLA Piper has announced the appointment of Mark Whiteside as a partner in its United Kingdom Transactional Tax practice, effective November 9, 2026. Whiteside joins the global law firm from CMS, where he previously served as a partner in Manchester and
led their regional transactional tax practice. This strategic hire is aimed at bolstering DLA Piper's tax advisory services, particularly in areas related to mergers and acquisitions, corporate restructurings, and real estate transactions. Whiteside brings extensive experience in advising clients on both UK domestic and cross-border transactions, covering various tax considerations such as corporate taxation, real estate taxation, value-added tax, venture capital arrangements, and employee incentive structures. His role at DLA Piper will involve providing integrated legal and tax advice throughout the entire transaction lifecycle, from initial structuring and due diligence to completion and post-transaction integration. This appointment follows the earlier addition of Gareth Amdor, who joined DLA Piper in 2026 to lead the firm's Transactional Tax team, further expanding the firm's senior resources in this critical area.
Why It's Important?
The addition of Mark Whiteside significantly enhances DLA Piper's capabilities in transactional tax, which is a crucial component of complex corporate activities. Effective tax planning directly impacts the structuring of acquisitions, financing arrangements, shareholder returns, and the treatment of assets and liabilities in business transactions. For clients engaged in international transactions, navigating diverse tax rules across multiple jurisdictions requires sophisticated and coordinated advisory services. Whiteside's expertise in both domestic and cross-border tax matters will allow DLA Piper to offer more comprehensive support to multinational corporations, private equity sponsors, and investors. This move signals DLA Piper's commitment to integrating its tax advisory services with its mergers and acquisitions practices, providing clients with a more seamless and efficient legal service. The strengthened team will be better equipped to address the intricate tax implications that can influence transaction execution and long-term investment outcomes for businesses operating in the UK and internationally.
What's Next?
With the integration of Mark Whiteside into the UK Transactional Tax team, DLA Piper is poised to offer enhanced tax support for its clients involved in M&A transactions, corporate restructurings, and other complex business activities. The firm's strategy appears to focus on deepening the synergy between its tax advisory and corporate transactional practices, which will likely lead to more streamlined and comprehensive client solutions. Clients can expect more robust advice on structuring deals, managing tax liabilities, and navigating regulatory complexities in both domestic and international contexts. The firm may also leverage this expanded expertise to attract new clients seeking integrated legal and tax services for their strategic business decisions. The continued growth of the transactional tax team, following Gareth Amdor's earlier appointment, suggests a sustained focus by DLA Piper on strengthening its position in the competitive legal market for corporate and tax advisory services.
Beyond the Headlines
The strategic recruitment of experienced tax partners like Mark Whiteside by global law firms such as DLA Piper reflects a broader trend in the legal industry: the increasing complexity of tax regulations and the growing demand for integrated, multidisciplinary legal services. As businesses operate in an increasingly globalized and regulated environment, the interplay between corporate law and tax law becomes more critical. Firms that can offer seamless advice across these domains gain a significant competitive advantage. This move also highlights the importance of specialized expertise in niche areas like transactional tax, where the financial implications of legal advice can be substantial. The ability to provide sophisticated tax planning and compliance services is not just about mitigating risks but also about optimizing financial outcomes for clients, making such expertise invaluable in today's corporate landscape. This trend underscores a shift towards more holistic legal solutions that address all facets of a client's business needs.













