Tax Manager M&A in London

A rare opportunity to lead tax support for complex, high-value, multi-jurisdictional projects and transactions across a genuinely global portfolio. Exposure to senior stakeholders across Tax, Finance, Legal, Business Development and the broader business. The autonomy to operate at pace and with judgement, while working as part of a high-calibre global tax function and drawing on specialist expertise across jurisdictions. A London-based role offering sought after multi-jurisdiction project work, broad internal visibility and the chance to contribute to commercially important outcomes for Rio Tinto. Our values – care, courage and curiosity – guide how we work and how we treat each other.

About the role

We are looking for a highly commercial tax professional who has demonstrated experience in leading the tax support of multi-jurisdictional projects and transactions, including M&A. This is a great opportunity for someone who is delivery-driven with deep tax technical expertise, strong judgement and commercial acumen and a pragmatic mindset. The role does not have any direct reports but will build project teams comprising both local tax team members and advisors. An ability to mobilize, co-ordinate and lead project teams will be key.

Reporting to the General Manager, Tax – Global Advisory, you will:

• Lead the tax workstream for complex, multi-jurisdictional transactions, restructures and strategic projects, including M&A.
• Provide clear, commercially grounded tax advice across the full project lifecycle and support timely decision-making by senior stakeholders.
• Assess and articulate the tax implications of transaction structures, financing arrangements, post-deal integration steps and cross-border operating models in a way that is practical and decision-useful.
• Mobilise and lead project teams drawn from local tax teams, other Group Tax specialists and external advisers, ensuring the right expertise is brought in at the right time.
• Identify, assess and communicate key tax risks arising from projects, transactions and business initiatives, ensuring these are understood early and managed appropriately.
• Ensure advice and recommended approaches are aligned with Rio Tinto's tax principles, governance requirements and broader policy framework.
• Build trusted relationships with senior stakeholders across Tax, Finance, Legal, Business Development and the broader business, becoming a go-to adviser on major initiatives and transactions.
• Manage external advisers effectively — defining scope, directing inputs and challenging advice where needed to ensure high-quality, timely and commercially relevant support.

A commitment to the safety of yourself and your team.

10+ years' experience in a professional services firm and/or multinational in-house tax environment, including substantial exposure to complex transactions, strategic projects and M&A activity.

Deep technical tax expertise, strong commercial acumen and a business-partnering mindset, with the ability to translate complex cross-border issues into clear, practical advice that supports better business decisions.

Demonstrated experience leading tax support for multi-jurisdictional projects and transactions, including shaping options, identifying and prioritising material tax considerations, and supporting decision-making through the full project lifecycle.

Strong business partnering and stakeholder leadership skills, with the ability to build trusted relationships, influence senior stakeholders and co-ordinate internal specialists, regional teams and external advisers to deliver high-quality outcomes.

A pragmatic, delivery-focused and risk-based approach, with the ability to work at pace, manage competing priorities and apply sound judgement on when to escalate, where to focus effort and how to work to governance requirements while delivering commercial outcomes in a large, matrixed or global organisation.

What we offer

• Be recognised for your contribution, your thinking and your hard work, and go home knowing you've helped the world progress.
• A work environment where safety is always the number one priority.
• A competitive salary package with annual cash incentive awards for eligible employees.
• Career development & education assistance to further your ambitions.
• Access top tier family-friendly health and medical programs and pension plan.
• Wellbeing benefits.
• Generous Rio Tinto employee share program.
• Employee Assistance Program.
• Ongoing individual wellbeing support for you and your family for personal and professional matters.
• Leave for all of life's reasons (vacation/annual, paid parental, sick leave).

Where you'll be working

Our global headquarters is situated in St. James's Square, in the City of Westminster, London, on the edge of the West End, and is the site of the group's original head office. Located over several floors, the office is truly a global hub for the business and is the base for many members of the Executive Committee. As such, the grade II listed office reflects the vibrancy of the location, although it also overlooks the tranquillity of the only garden square in the district and is a short walk from Green Park and Piccadilly underground stations.

We operate in 35 countries where we produce iron ore, copper, aluminium, critical minerals, and other materials needed for the global energy transition and for people, communities, and nations to thrive. Our purpose is finding better ways to provide the materials the world needs – striving for innovation and continuous improvement to produce materials with low emissions and to the right environmental, social and governance standards.

Respect and Inclusion

At Rio Tinto, we particularly welcome and encourage applications from Indigenous Peoples, women, the LGBTQIA+ community, mature workers, people with disabilities and people from different cultural backgrounds.

Summary

Location: London
Type: Full time