International Social Security Tax Assistant - London

Ernst & Young

International Social Security Tax Assistant - London

Salary Not Specified

Ernst & Young, City of Westminster

  • Full time
  • Permanent
  • Remote working

Posted 1 week ago, 10 Sep | Get your application in now before you're too late!

Closing date: Closing date not specified

job Ref: 0bca70f3fa1945c997afcea2058ce421

Full Job Description

  • To assist in the coordination of International Social Security service delivery to several multinational clients. The post will entail responsibility for overseeing aspects of the established ISS advisory practice EY offers its clients, including:

  • Accurate and timely maintenance of tracking databases and dealing with day-to-day queries from internal and external customers relating to the process, including oversight and management of ongoing related tasks / actions through to completion.

  • Day-to-day responsibility in managing the ISS client mailboxes, ensuring delivery of "Core" Global ISS compliance services.

  • Responsibilities will include responding to (internal and external) emails within the agreed timeframe, and drafting notes of meetings/calls in a professional manner to capture agreed next actions.

  • Be able to use ISS web-enabled tools to deliver compliance and advisory services.

  • Be expected to develop a broad technical knowledge of International Social Security matters to enable them to facilitate the compliance process, identify problems, source solutions and, ultimately, be practical and client focused.

  • Become technically competent in ISS regulations (UK, EU, and Totalisations) and awareness of ISS domestic regulations of other countries globally.

  • Managing Out of Scope request databases.

  • Drafting complex certificate of coverage (CoC) applications.

  • Responsible for financial tasks relating to client engagements including drafting of overall summary of financial positions, monthly fee schedules, invoices, credit notes, and resolving accounts receivable queries.

  • Delivering management reports on their accounts.

  • Delivering ISS Business Intelligence reporting on their accounts.

  • Draft ISS technical advice regarding social security compliance obligations and opportunities on a global basis.

  • Provide social security/Benefits/Healthcare advice to clients and/or assignees, which may be by telephone and email.

  • Liaise with Government departments in both the UK and internationally.

  • Draft correspondence to clients and take on ad hoc projects.

    We're seeking motivated and passionate professionals eager to work on diverse client projects across various sectors. The ideal candidate will possess:

  • Exceptional Coordination Skills: Ability to manage multiple tasks effectively and maintain meticulous attention to detail.

  • Self-Motivation and Problem-Solving Abilities: Strong drive and aptitude for tackling challenges independently.

  • Team and Group Contribution: Capability to work effectively both within small teams and in larger group settings.

  • Organizational and Project Management Skills: Proficiency in delivering accurate results under tight deadlines while managing multiple stakeholder relationships.

  • Strong Case Management Skills: Experience in managing cases effectively is a plus.

  • Curiosity and Enthusiasm: A keen interest to learn and in addressing clients' unique challenges in the world of International Social Security.


  • Ideally, you will have the following skill set:
  • Client-focused with a professional presentation.

  • IT literate, with prior experience using Microsoft Excel, Microsoft Word, and Microsoft PowerPoint. Experience in AI, Microsoft Copilot would be beneficial though not essential.

  • Strong organizational and project management abilities.

  • Capacity to adapt to new processes and learn new skills.

  • Self-motivated with high problem-solving skills and attention to detail.

  • Ability to work collaboratively in a team environment.

  • Experience in a client service environment related to Expatriate Tax, NIC, or Payroll would be beneficial, though not essential.

  • Completion of qualifications such as ATT/CTA would be beneficial, though not essential.

    As a global leader in assurance, tax, transaction, and advisory services, we utilise the finance products, expertise, and systems we have developed to build a better working world. This begins with a culture that believes in providing you with the training, opportunities, and creative freedom to make things better. Our more than 300,000 people and one million alumni form a powerful network. Each of those individuals leads and inspires others during their lifetime at EY (Ernst & Young) and beyond, bringing our purpose to life.


  • Our People

    At EY, we empower our people with the right mindsets and skills to navigate what is next, become transformative leaders the world needs, pursue careers as unique as they are, and build their own experiences. Our network, consisting of more than 300,000 people and one million alumni, forms a powerful force. Together, we develop outstanding leaders who collaborate to fulfil our promises to all our stakeholders. In doing so, we play a critical role in building a better working world for our people, our clients, and our communities. With a commitment to hiring and developing the most passionate individuals, we are determined to turn our ambition to be the best employer into a reality Hear What Our People Say

    The Opportunity

    The International Social Security (ISS) Practice is the leading global provider of social security services. Social security is a specialist field in the increasingly complex global regulatory tax landscape, and a particular area of focus for global organisations and their mobile employees due to the connectivity between global compliance for employers in a heightened risk environment, and employee experience relating to receipt of linked government benefits such as pensions.

    Our dedicated ISS team in London comprises former social security administration staff, qualified accountants, and tax advisors with expertise in expatriate tax, immigration, and assignment management. We handle a comprehensive range of social security advisory and compliance services for individuals moving to and from the UK, as well as between any other combination of countries worldwide, including remote working arrangements., EY is committed to being an inclusive employer and we are happy to consider flexible working arrangements. We strive to achieve the right balance for our people, enabling us to deliver excellent client service whilst allowing you to build your career without sacrificing your personal priorities. While our client-facing professionals can be required to travel, and at times be based at client sites, our flexible working arrangements can help you to achieve a lifestyle balance. Belonging means much more than just fitting in. It means thriving in a place where you're embraced and celebrated just for being you - no matter who you are, and what background you come from.

    EY Talent Community

    If this opportunity does not align with your current objectives or preferences, we invite you to Join Our Talent Community here at EY. It's an excellent way to stay informed about thought leadership, in-person and virtual events, and future career opportunities.

    If this sounds like you, we'd love to hear from you.

    We offer a competitive remuneration package where you will be rewarded for your individual and team performance. Our comprehensive Total Rewards package includes support for flexible working and career development, and with Flex EY you can select benefits that suit your needs, covering holidays, health and well-. being, insurance, savings, and a wide range of discounts, offers and promotions. Plus, we offer:

  • Support and coaching from some of the most engaging colleagues around.

  • Opportunities to develop new skills and progress your career.

  • The freedom and flexibility to handle your role in a way that is right for you.