Senior Manager – Global Mobility Services (GMS) Tax

KPMG UK | London | Tax & Law | Legal Services

Location: London

Capability: Tax & Law

Business Area: Legal Services

Experience Level: Senior Manager

Working Pattern: Full Time or Part Time

Contract Type: Permanent

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Step Into a Leadership Role with Real Influence

KPMG is seeking an experienced and commercially minded Senior Manager to join its growing Global Mobility Services (GMS) Tax team in London. This is an outstanding opportunity for a senior global mobility tax professional who is ready to lead major client relationships, shape strategic solutions, and help drive the continued growth of a high-performing practice.

As part of KPMG’s People Taxes practice, the GMS team is experiencing strong momentum and expanding opportunities. In this role, you will work with multinational organisations on complex mobility challenges, advise on cross-border tax matters, and support the development of innovative client solutions in an evolving international landscape.

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What You’ll Be Doing

In this role, you will combine technical excellence, strategic leadership, and strong client relationship management to deliver meaningful results.

Core Responsibilities

• Manage a portfolio of key corporate clients, acting as a senior point of contact on global mobility tax matters.

• Provide specialist technical advice on complex international mobility issues, including assignment structuring and cross-border working arrangements.

• Lead client engagements from planning through to delivery, ensuring quality, efficiency, and risk management throughout.

• Build and strengthen relationships with senior stakeholders, becoming a trusted advisor to multinational businesses.

• Drive business development activity, identifying opportunities for growth, contributing to proposals, and supporting the development of new services.

• Lead, coach, and develop team members, creating an environment that supports performance, collaboration, and progression.

• Oversee operational excellence, ensuring projects are delivered to a high standard and in line with internal governance requirements.

• Support innovation and technology adoption across the GMS offering, helping clients benefit from digital solutions and streamlined processes.

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How You’ll Make an Impact

This role offers the chance to influence both client strategy and the direction of the wider practice.

You will:

• Advise multinational clients on the tax implications of global mobility programmes and workforce movement.

• Guide businesses through complex international tax issues, helping them manage risk while supporting talent mobility.

• Shape solutions for senior executives, including tax-efficient packages and assignment structures.

• Provide insight on cross-border working models, including treaty interpretation, economic employer considerations, payroll implications, and remote work challenges.

• Contribute to the future growth of the GMS team through leadership, mentoring, and commercial input.

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Why Join KPMG’s GMS Tax Team?

1. A Leadership Role with Growth Potential

This is more than a client delivery role. It is a chance to operate as a leader within a growing team, with scope to influence business strategy, expand client relationships, and contribute directly to the evolution of KPMG’s global mobility offering.

2. Trusted Advisor Status

You will work closely with major multinational clients, providing guidance on some of the most nuanced and high-profile mobility tax issues in the market. Your expertise will directly shape client decisions and long-term workforce strategies.

3. Innovation Through Technology

KPMG continues to invest in digital tools that enhance mobility management and client service. In this role, you will help drive the use of technologies such as KPMG LINK Go, GET, GPM, and BT, supporting more efficient, data-driven, and effective delivery.

4. A Supportive and Flexible Culture

KPMG is committed to creating an environment where talented professionals can thrive. Flexible working options, hybrid arrangements, and comprehensive wellbeing support help ensure that senior leaders can succeed professionally while maintaining a healthy work-life balance.

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What We’re Looking For

Experience

• Significant experience delivering expert advice on global mobility tax matters.

• Demonstrated success in leading teams and managing people effectively.

• Proven ability to build strong relationships with senior executives and buyers of GMS services.

• Track record of supporting business development efforts and achieving sales or growth targets.

• Relevant professional qualifications such as ATT or CTA.

Technical Expertise

• Strong expertise in:

• Complex residency analysis

• Executive assignment structuring

• Tax-efficient reward and mobility packages

• Ability to advise senior stakeholders clearly on risks, regulatory developments, and practical implications.

• Experience leading HMRC disclosures, including:

• PAYE

• Self Assessment

• Ability to manage and oversee multi-jurisdictional advisory projects, turning technical detail into practical and accessible conclusions.

• In-depth understanding of UK tax issues affecting:

• Business travellers

• Non-resident directors

• Remote workers

• Cross-border employees

• Strong working knowledge of:

• Double tax treaties

• Economic employer rules

• The 60-day rule

• Payroll implications

• Dual-contract and commuter arrangements

• Good knowledge of related areas such as:

• International pensions

• Deferred compensation

• Social security

• Posted Workers Directive

• Ability and willingness to build strong capability in KPMG’s GMS technology platforms, including:

• KPMG LINK Go

• GET

• GPM

• BT

Leadership & Personal Skills

• Strong leadership and team management capability with a focus on developing high-performing teams.

• Energetic, ambitious, and commercially aware, with the ability to identify and pursue growth opportunities.

• Excellent communication and interpersonal skills, with confidence engaging stakeholders across global teams and client organisations.

• Highly analytical, with the ability to identify core issues, assess complex information, and develop practical solutions.

• Strong organisational skills and the ability to manage multiple priorities with accountability and precision.

• Commitment to continuous development, with a proactive approach to feedback, quality, and professional growth.

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Why Tax & Law at KPMG?

Tax and legal challenges are evolving faster than ever, shaped by regulatory change, globalisation, workforce mobility, and new business models. At KPMG, you will be part of a team that helps clients navigate this complexity with confidence and clarity.

The breadth of the practice means you will work in an intellectually stimulating environment, alongside experts across areas including Corporate Tax, Indirect Tax, Expatriate Tax, Private Client Personal Tax, compliance, advisory services, and KPMG Law.

If you are looking for a senior opportunity where you can combine technical depth, client impact, innovation, and team leadership, this role offers the platform to do exactly that.

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Apply Your Expertise Where It Matters

If you are an accomplished global mobility tax professional ready to take on a visible and influential leadership role, KPMG offers the scale, opportunity, and support to help you make your mark.