Interim Finance Manager

Impact Investing Institute

Employment Type Contract part time, flexible hours, fixed 12 months contract with potential for permanent
Location Hybrid · London, City of, UK 60% office, 40% remote, flexible arrangements considered
Salary £50,000 - £65,000 (GBP) 10% employer pension contribution
Team Finance
Seniority Mid-level, Senior
  • Closing: 4:30pm, 13th Jul 2025 BST

Job Description

Interim Finance Manager (Part-Time, Fixed-Term)

Job Summary

We are seeking an experienced Interim Finance Manager to provide operational finance support to our Interim Finance Director on a part-time, fixed-term basis. This role has the potential to become permanent for the right candidate. The role calls for a highly competent finance professional who can work independently with minimal supervision, allowing the Finance Director to focus on strategic financial management, governance matters, and change and transformation projects.

The successful candidate will work in close partnership with our external accountants and take ownership of day-to-day accounting operations while maintaining the high standards of accuracy and compliance required in our finance function. This is an excellent opportunity for an experienced finance professional seeking flexible, interim work.

Key Responsibilities

Core Accounting Operations

  • Accounts Payable & Receivable: Invoice processing, payments, and receipts with accurate record-keeping and timely processing

  • General Ledger Maintenance: Account reconciliations and ensuring accuracy of all financial transactions

  • Bank Reconciliation: Regular bank reconciliations, identifying and resolving discrepancies promptly

  • Month-End Closing: Month-end close process including accruals, prepayments, and journal entries

Financial Reporting & Compliance

  • Management Reporting: Support external accountants in preparation of monthly, quarterly, and annual financial reports, including profit and loss accounts, balance sheets, and cash flow statements. Support monthly financial risk reporting

  • VAT Returns: Support external accountants in preparation and submitting of quarterly VAT returns, including partial recovery adjustment

  • Payroll: Oversee the provision of an accurate, compliant, and timely payroll delivery service

  • Fixed Asset Management: Maintain comprehensive fixed asset register including acquisitions, disposals, and depreciation calculations

  • Expense Management: Process and review employee expense claims, ensuring policy compliance and proper documentation

Process Management & Support

  • Audit Support: Provide comprehensive support during internal and external audits, preparing documentation and responding to queries independently

  • System Management: Utilize accounting software (particularly Xero) to maintain accurate financial records and generate reports

  • Process Improvement: Identify and implement operational improvements to enhance efficiency and accuracy

  • Policy and Procedure Management; maintain and adhere to Institute policies and update when necessary

  • Ad Hoc Analysis: Conduct financial analysis and support budgeting activities as required

Essential Requirements

Qualifications & Experience

  • Professional Qualification: Fully qualified accountant (ACCA, CIMA, ACA, or equivalent)

  • Experience: Minimum 5-7 years of progressive accounting experience with at least 2 years in a senior or semi-senior role

  • Sector Experience: Previous experience in smaller organizations, charities, institutes, or not-for-profit sectors highly desirable

  • Independence: Proven ability to work autonomously with minimal supervision while maintaining high standards

Technical Skills

  • Accounting Software: Advanced proficiency in Xero accounting systems (essential)

  • Microsoft Excel: Advanced Excel skills for financial analysis and reporting

  • Financial Reporting: Strong experience in preparing management accounts and oversight of financial statements

  • Regulatory Knowledge: Current knowledge of UK accounting standards, VAT regulations, and compliance requirements

Personal Attributes

  • Attention to Detail: Exceptional accuracy and attention to detail in all financial work

  • Time Management: Ability to prioritize effectively and meet tight deadlines in a part-time capacity

  • Communication: Strong written and verbal communication skills for stakeholder interaction

  • Integrity: High level of integrity and confidentiality in handling sensitive financial information

  • Adaptability: Flexible approach and ability to adapt quickly to organizational needs

Role Details

  • Contract Type: Fixed-term contract (duration to be agreed)

  • Hours: Part-time, flexible arrangements considered

  • Start Date: Immediate or as soon as possible

  • Location: [To be specified - remote/hybrid options available]

  • Reporting: Direct reporting to Interim Finance Director

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