Assistant Manager - Accounts

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Affinia is a UK Top 35 Accounting firm where we support clients with everything from day‑to‑day Accounting, Audit and Tax planning to strategic business advice, compliance and specialist services such as Cloud Accounting, Payroll and Mergers & Acquisitions across a wide range of sectors.

As an Assistant Manager within the Accounts team, you will play a key role in delivering high‑quality accounting services to a varied portfolio of clients as part of a collaborative and high‑performing team. Positioned between Accounts Senior and Manager level, you will use your technical expertise and hands‑on experience to deliver a high level of client service and a smooth workflow.

You’ll be able to manage non‑routine issues independently, delegate effectively and mentor junior team members—consistently role‑modelling best practice.

• Manage a small non‑complex portfolio of clients, ensuring timely delivery of statutory accounts, management accounts, VAT returns and other deliverables in line with agreed deadlines and budgets.
• Review work prepared by Seniors, Semi‑Seniors and Trainees, providing structured feedback and coaching to support development and ensure quality control.
• Act as the main point of contact for day‑to‑day client queries, building trusted relationships and resolving issues independently where possible.
• Assist the Manager with WIP (work in progress) management, billing and recovery analysis, identifying opportunities for additional billing where work exceeds scope.
• Ensure the team adheres to internal processes, including workflow management, file completion standards and up‑to‑date time recording.
• Contribute to internal team development by delivering training sessions, supporting onboarding of new team members and acting as a Mentor.
• Keep up to date with changes in UK GAAP, tax legislation and regulatory frameworks, applying this knowledge to client work and team guidance.
• Support the Manager and Directors with the planning and resourcing of jobs, ensuring effective delegation and utilisation across the team.
• Participate in business development activities, including supporting proposal preparation and attending networking or marketing events as required. Promote Affinia’s values and contribute to a positive, collaborative team culture.

• ACA, ACCA or equivalent qualification (fully qualified).
• Ideally 3+ years’ experience in a UK accountancy practice.
• Strong technical knowledge of UK GAAP (FRS 105 and FRS 102 specifically; where relevant IFRS) and relevant tax principles.
• Demonstrable experience of reviewing and supervising work within a practice environment.
• Proficiency in accounting software such as CCH, Xero, Sage or Quick Books.
• High level of attention to detail, accuracy and the ability to work under pressure to meet deadlines.
• Strong interpersonal skills, with the confidence to communicate directly with clients and lead internal discussions.
• Ability to mentor and support junior team members and contribute to team performance.
• Commercial awareness and understanding of how accountancy services add value to clients.
• Organised, self‑motivated and proactive in managing workload and priorities.

• Ability to purchase three additional days annual leave per year.
• Auto‑enrolment pension scheme with True Potential.
• Death in service.
• Full study support including tuition fees and paid study days.
• Professional membership support.
• Paycare – claim money back for dental, optical and professional therapies.
• Agile/hybrid working policy.
• Dress for your diary policy.

Please note that this job profile is not an exhaustive list of duties but merely an outline of the key components of the role. You may be required by your line manager to take on additional responsibilities when requested.

Affinia is committed to being an Equal Opportunity Employer. Our policy is unequivocal: we do not tolerate discrimination based on age, disability, sex, race, religion or belief, gender reassignment, marriage or civil partnership, pregnancy, or maternity, or sexual orientation. We pride ourselves on being an inclusive organisation that actively promotes equality of opportunity for all, valuing the right mix of talent, skills and potential.

We welcome applications from a diverse range of candidates and selection for roles is based solely on individual merit.