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Junior Finance Assistant

Job in City of Westminster, Central London, Greater London, England, UK
Listing for: Reform UK
Full Time position
Listed on 2026-08-29
Job specializations:
  • Accounting
    Financial Reporting, Accounts Receivable/ Collections, Finance Assistant
Salary/Wage Range or Industry Benchmark: 22000 - 32000 GBP Yearly GBP 22000.00 32000.00 YEAR
Job Description & How to Apply Below
Location: City of Westminster

This is a hands‑on junior finance role ideal for someone at the early stages of their AAT qualification (Level 1–3), with the ambition to progress to ACCA. The role sits within a small, SME‑style finance team, supporting day‑to‑day accounting operations, month‑end routines, and system administration. The business currently uses Xero, with a planned transition to Microsoft Dynamics 365 Business Central in the next 12 months, so the role suits someone comfortable with cloud systems and process change.

Key Responsibilities

Daily & Weekly Operations
  • Process supplier invoices, ensuring correct coding, approvals, and supporting documentation.
  • Prepare and post bank transactions; assist with daily bank reconciliation.
  • Manage accounts payable inbox and supplier queries.
  • Assist with accounts receivable tasks: raising invoices, allocating receipts, and chasing overdue balances.
  • Maintain accurate records for expenses, credit cards, and staff reimbursements using Navan.
  • Keep digital filing organised and up to date.
Month‑End & Reporting Support
  • Prepare prepayments and accruals schedules under guidance.
  • Support balance sheet reconciliations (bank, control accounts, fixed assets, AP/AR).
  • Assist with posting journals and maintaining the general ledger.
  • Run standard month‑end reports from Xero and assist with variance analysis.
Systems & Process
  • Operate confidently within Xero, including tracking categories, bank rules, and basic reporting.
  • Support the finance team during the migration to Dynamics 365, including data cleansing, testing, and user acceptance tasks.
  • Help document finance processes and maintain internal controls.
Compliance & Administration
  • Assist with VAT return preparation and supporting schedules.
  • Support ad‑hoc finance projects, audits, and operational improvements.
  • Maintain organised digital filing in SharePoint/One Drive.
Skills & Attributes
  • Strong attention to detail and accuracy.
  • Comfortable working in a fast‑moving SME environment.
  • Good communication skills for supplier and internal queries.
  • Proactive, organised, and willing to learn.
  • Confident with cloud‑based systems and spreadsheets (Excel/Sheets).
Qualifications & Experience

Essential:
Studying AAT Level 1, 2 or 3.
Basic understanding of double‑entry bookkeeping.
Competent with Excel (lookups, pivot tables, basic formulas).

Desirable:
Exposure to Xero, Navan, or other cloud accounting software.
Interest in progressing to ACCA.
Experience in an SME or multi‑entity environment.
Development & Progression
Full support for AAT progression and later ACCA (subject to performance).
Exposure to month‑end, budgeting, and system migration projects.
Clear pathway to Assistant Accountant within 18–24 months.

This is a fantastic opportunity for a motivated and career-driven individual to begin their journey in finance with a forward‑thinking organisation. With exciting growth plans ahead, there has never been a better time to join and be part of the Party's success story.

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