Senior Commercial Management Accountant

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Principal Consultant | Interim Not-For-Profit | Ivy Rock Partners

A national charity seeking a Interim Senior Commercial Management Accountant to support their finance team during a period of growth and transformation.

This role will play a critical part in leading the development of costing and pricing models to support strategic decision-making. You will also deliver high-quality financial planning and strengthen financial insight across the organisation.

This is a part-time role (3 days per week) offered on an interim basis until April 2026. The charity offers remote working, with access to a London office for those who prefer a hybrid approach.

The Role

As Senior Commercial Management Accountant, you will provide crucial support across financial planning, forecasting, modelling, and operational finance. Working closely with the Head of Finance & Finance Director, you will help deliver the charity’s mid-year forecast, develop organisational planning tools for the upcoming financial year, and lead on advanced costing and pricing work to support strategic decisions.

You will also support technical areas including partial VAT recovery, internal financial controls, and the migration of a small trading subsidiary to a new finance system. This role is ideal for someone who enjoys analytical problem-solving, partnering with non-finance colleagues, and contributing to organisational change.

Key Responsibilities

• Lead the development of costing and pricing models to support strategic decision-making.
• Deliver the mid-year (4+8) forecast, providing variance analysis and clear narrative insight.
• Prepare planning tools and templates for the upcoming financial year.
• Provide financial guidance and analysis to non-finance managers across the organisation.
• Produce high-quality management reporting for senior leadership.
• Support technical accounting matters, including partial VAT recovery and VAT group consideration.
• Lead on the migration of financial processes for the charity’s trading subsidiary to a new finance system.
• Conduct internal audits and support compliance with statutory and charity regulatory requirements.
• Partner closely with operational teams and budget holders to strengthen financial understanding and performance.
• Contribute to a positive and collaborative finance team culture, supporting process improvements and knowledge sharing.

About You

You will be a part-qualified or qualified accountant (ACA, ACCA, CIMA, CIPFA or equivalent) with strong experience in management accounting and developing robust cost and pricing models – ideally with experience working within commercial environments.

You’ll bring:

• Experience developing financial models, costings, and pricing work.
• Strong analytical skills and attention to detail.
• Experience supporting non-finance colleagues with forecasting, variance analysis, and performance insight.
• Ability to communicate complex financial information clearly and accessibly.
• Confidence working in a fast-paced environment with competing priorities.
• A collaborative, calm, and proactive approach.
• Knowledge of Jet Reports for Business Central.
• Experience with VAT recovery or working through VAT implications for charities.

Contract & Working Arrangements

Location: Home-based or hybrid with London office access

Seniority level: Mid-Senior level

Employment type: Temporary

Job function: Finance

Industries: Non-profit Organizations and Civic and Social Organizations

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