Interim Finance Manager

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

Impact Investing Institute

Employment Type: Part time, flexible hours, fixed 12 months contract with potential for permanent

Location: Hybrid/London (we work hybrid - option for roughly 60% office and 40% WFH)

Start Date : Immediate or as soon as possible

Salary: £50,000 - £65,000 (GBP) + 30 days paid holiday per annum (pro rata), and Pension Scheme with 10% employer contribution

Closing date: 4:30pm, 13th July 2025

About the Impact Investing Institute

The Impact Investing Institute is an independent, non-profit organisation working to transform capital markets so they support a fairer, greener, more resilient future. We see impact investing as an effective way to achieve that transformation and so we work to accelerate the field, both in the UK and globally. Through our Challenge Lab, we come up with innovative solutions that help private finance better address societal challenges like preventative health, left-behind neighbourhoods and a fair transition to net zero. Via our Field Building, we implement impact investing insights and know-how across financial services through applied research such as guides, training, networks and communities of practice. We also engage, and seek to influence, policymakers and regulators to create an enabling environment where impact investing can thrive, in the UK and globally. More information on the Institute can be found on our website: www.impactinvest.org.uk

Job Summary

We are seeking an experienced Interim Finance Manager to provide operational finance support to our Interim Finance Director on a part-time, short-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 : Utilise 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 organisations, 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 prioritise 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 organisational needs