Tax Senior Manager – Corporate Team
Listed on 2026-09-02
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Finance & Banking
Accounting & Finance, Financial Compliance, Accounting Manager, Corporate Finance -
Management
Location: Hybrid / Sidcup, UK
job type: Permanent / Full-time
Sector and subsector: Tax & Practice | General Practice
Salary: Negotiable salary
Affinia is the UK’s fastest growing purpose-led, purpose-built Accountancy firm, focused on building stronger, more valuable relationships. With over 1000 colleagues across the East, South East, London and the Midlands, we are dedicated to supporting our clients, colleagues and communities.
We advise businesses, public sector organisations, charities and individuals throughout the UK and internationally across six Service Lines – Accounts Solution, Taxation, Audit & Assurance, Corporate Finance, Payroll and Corporate Recovery, supported by centralised enabling functions spanning People, Finance, Marketing, Business Support, IT, Risk and Corporate Development. Our team also offer in-depth sector expertise across a number of sectors, ensuring our clients receive the best short to medium and long-term advice, tailored to them.
We are committed to delivering excellence in every aspect of our work, adapting to the evolving technology and regulatory landscape while consistently exceeding client expectations.
Our people are our most valuable asset. We are therefore committed to supporting our colleagues throughout their professional development, providing guidance and training at whatever stage of their career they join us.
Purpose of the role:
In joining Affinia, you will be part of a growing, successful, forward thinking and dynamic Tax department. This role involves significant leadership, strategic financial management, high-level client relationship management, and driving growth for the Tax Service Line. The role requires an experienced individual of Corporate Tax compliance processes and workflow. However, there is also ample opportunity to get involved in a broad range of high-value advisory work for a varied portfolio of companies.
You will be involved in the delivery of ad hoc projects and the preparation of bespoke tax planning reports. Having a commercial mindset will be key as you will need to play a role in business development. This includes spotting opportunities for growth within existing clients and pitching for new business. As well as guiding and mentoring a team of tax staff, you will also need to play a pivotal role in supporting the leaders of the Tax Service Line in delivering a strategic and successful approach.
We operate a hybrid working model, so you will split your time between the office, client sites when required, and from home when you are able and we provide both technical/hard and ‘soft’ skills training through platforms such as Tolley’s, Mercia, Croner-i and Linked In Learning.
Accountabilities:
- Management of a large portfolio of corporate entities, ranging from owner-manage businesses to large groups.
- Management of the entire team’s compliance cycle, from overseeing the preparation of documents, subsequent reviews, advising clients directly of their tax positions and submission to HMRC.
- Lead annual filing processes for all manner of compliance matters.
- Complete and review complex compliance work to the highest of standards and using this touch point as an opportunity to identify tax planning opportunities and subsequently pursue them.
- Line managing and mentoring of junior members of the tax team.
- Assisting with the internal tax training of staff within the team.
- Consistently act as an example to the staff around you and demonstrate the importance of integrity and high-quality work.
- Working collaboratively with staff across all our office locations to constantly improve our compliance processes and ensure that we continue to be at the cutting edge of tax technology enabling efficient delivery of quality tax work.
- Promote the Tax Service Line across the group and assist teams in other locations with tax matters.
- Supporting both leaders of the business and the wider tax team, with ad hoc advisory work, including the initial scoping out of projects, providing fee quotes, and assisting with the delivery of high‑quality tax reports.
- Building and maintaining key relationships with clients and other professional third parties.
- Leading client meetings…
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