Global Tax Manager

Status: Permanent

Location: London 

Job purpose: The Global Tax Manager  leads the Foundation’s global tax compliance, reporting, advisory and risk management activities across all relevant jurisdictions. The role ensures timely and accurate filings, supports financial reporting under IFRS, partners with Finance, HR, Legal and Compliance to manage tax risk (including employment tax and global mobility), and oversees relationships with external advisors and tax authorities. 

Principal accountabilities 

Tax Compliance and Operations 

• Oversee and coordinate the preparation, review, filing and submission of all global tax obligations, ensuring full and timely compliance across jurisdictions. 
• Manage UK corporation tax return, including oversight of transfer pricing and preparation and submission of UK VAT return. 
• Lead the preparation and review of US Form 990 and US state charitable forms. 
• Ensure overseas payments are received free of withholding tax, including securing and managing tax residency certificates and treaty relief applications. 
• Manage and coordinate overseas annual tax returns (Germany, Canada, China, Japan and Hong Kong), liaising with local advisors as required. 
• Oversee GST filings, prepare and submit Canadian tax rebate claims 
• Maintain comprehensive and compliant tax documentation and records in line with local statutory retention requirements. 
• Compile and manage tax-related correspondence with tax authorities and external stakeholders.  
• Maintain the global tax compliance calendar to ensure all statutory filing and payment deadlines are met. 

Financial Reporting, Advisory and Business Support 

• Contribute to management reporting, including monthly results, quarterly reviews and year-end reporting processes.  
• Provide advisory support on the tax implications of intercompany transactions, including transfer pricing and intercompany arrangements. 
• Provide tax input into quarterly financial planning, including tax budgeting, forecasting and tax provision calculations. 
• Perform detailed general ledger analysis, tax reconciliations and ad hoc reporting as required. 
• Prepare and submit tax-related information to third-party organisations, including auditors and regulatory bodies, particularly during year-end processes. 

Risk Assessment and Mitigation 

• Identify potential tax risks and issues, assessing their potential impact on the organisation. 
• Ownership of the tax risk framework as well as interactions and preparation of papers for the audit and risk committee 
• Oversight of compliance activities, fiscal audit and tax related projects. 
• Working with the Compliance and Risk Team on various indirect tax issues as and when required  
• Analyse and assess permanent establishment (PE) risks arising from employee relocation, remote working and international presence. Provide clear recommendations on risk mitigation, including policy updates, contractual arrangements and operational controls, where required. 
• Contribute to the development and maintenance of tax control frameworks and internal policies 

Tax Research and Stakeholder Communication 

• Conduct research and analysis on tax-related matters, staying updated on changing tax laws, regulations, and industry practices. Use this information to inform decision making and ensure compliance. 
• Keep appraised and keep the CFO updated on all tax related matters, ensuring key stakeholders are kept informed and up to date with relevant legislative changes. 
• Provide day-to-day tax advisory (engaging where required with 3rd Party providers for advice). 
• Provide training and support to finance team ensuring they have a comprehensive understanding of tax compliance requirements and best practices.  
• Collaborate with external tax advisors, legal counsel, and government agencies as necessary. 
• Manage relationships with external auditors and tax authorities during audits and examinations.
• Manage and coordinate annual Group tax audits. 

Employment Taxes and Global Mobility 

• In collaboration with HR, monitor and manage employment tax and social security obligations arising from the organisation’s multi‐location and hybrid working model, including payroll withholding, social security exposure and reporting obligations. 
• Work closely with HR to complete and maintain the employee mobility working group, ensuring mobility arrangements are assessed from a tax, social security, PE, and regulatory perspective. Follow up on agreed actions and conduct periodic reviews to ensure advice is implemented and risks remain appropriately managed. 
• Contribute towards the development and ongoing maintenance of global mobility and remote working policies, ensuring alignment with tax compliance requirements, providing clear and timely updates to senior stakeholders and supporting internal reviews or audits as required. 

Qualifications, Knowledge and Experience 

Essential qualifications 

• A qualified accountant, ideally with a US or UK tax qualification  
• Experience in tax management and compliance, with a focus on international tax matters.  
• Experience working in a complex international environment. 
• A good understanding of tax laws and regulations in multiple jurisdictions. 
• Experience in producing tax disclosures under IFRS standards in the annual financial statements. 
• Experience in preparing deferred tax calculations. 
• Experience of corporate tax, VAT / GST reporting. 
• Knowledge and understanding of payroll compliance, rules, and legislations in a multi-country environment. 
• Advanced experience with Microsoft Office; proficient in the use of Microsoft Excel (intermediate Excel functions, i.e., pivot tables, sorting, linking, etc.). 

Preferred experience 

• Experience working for a not-for-profit organization. 
• Experience with Microsoft Business Central ERP. 
• Experience with Form 990 reporting and US tax filings. 

Skills and attributes 

• Ability to work independently, take ownership, prioritize work to deadlines and pay attention to detail. 
• Ability to apply judgement, creativity, and flexibility to generate new and innovative ideas and approaches to solve complex problems. 
• Excellent communication and interpersonal skills to effectively collaborate with cross-functional teams, external advisors, and government agencies. 
• Strong ability to build effective working relationships with internal and external stakeholders at all levels. 
• Capable of working under pressure and to tight deadlines. 
• Ability to multi-task and manage a varied workload. 
• Proactive in seeking guidance when planning or prioritizing complex or conflicting tasks. 
• Process focused and methodical manner, with a high level of accuracy and attention to detail. 
• Demonstrated commitment to the organisation’s mission and values, understanding the unique aspects of the not-for-profit sector

Application Closing Date: 14th June 2026

Please note that while we have a closing date for this application, we reserve the right to interview candidates and potentially close the role early should we find a suitable candidate.