Part-Time Tax Manager | Entrepreneurial Property Business | London

Harmonic are proud to be partnering with a growing, entrepreneurial property business in their search for a Part-Time Tax Manager / Finance Lead. This is a fantastic opportunity for a tax-focused finance professional looking for a flexible, portfolio-style role with real commercial exposure.

This position offers the chance to step into a broad, hands-on role, combining technical tax oversight with strategic financial input, supporting a dynamic leadership team as the business continues to evolve and expand.

The Client

Our client is a privately owned property business with a diverse portfolio spanning investment, asset management, and development. Operating with an entrepreneurial mindset, the business has built a strong track record through opportunistic acquisitions and hands-on asset management.

With an agile and lean team, they place real value on commercial thinking, ownership, and adaptability. The business is continuing to grow its portfolio and is now looking to strengthen its financial oversight, particularly across tax, treasury, and strategic finance.

This is an environment where finance plays a key role in enabling smart decision-making, with close interaction between leadership and advisors, and a clear focus on long-term value creation.

The Role

This is a broad and commercially minded position, ideal for someone who enjoys operating across both technical and strategic areas of finance. You will take ownership of tax matters across the business, while also supporting wider finance activities including treasury, cash flow oversight, and ad hoc commercial analysis.

Working closely with the Directors, you will act as a trusted advisor, helping to navigate tax considerations, optimise structures, and provide financial clarity to support investment decisions.

The role offers significant flexibility and autonomy, making it well suited to someone seeking a part-time position alongside other commitments or portfolio work.

Responsibilities

• Lead on all tax-related matters including corporate tax, VAT, and structuring considerations
• Oversee tax compliance, liaising with external advisors where required
• Provide guidance on tax-efficient structuring of investments and transactions
• Support treasury activities including cash flow monitoring and liquidity planning
• Assist with financial oversight across the portfolio, including performance tracking
• Partner with Directors on commercial decision-making and investment analysis
• Support budgeting, forecasting, and scenario planning where needed
• Review and improve financial processes and reporting where appropriate
• Act as a key finance point of contact across the business

What our client needs to see (essential)

• ACA / ACCA / CTA / Qualified Accountant or Tax Specialist
• Strong tax background, ideally within property, real estate, or asset-backed environments
• Experience managing corporate tax and VAT matters

Commercial mindset with the ability to apply tax knowledge to real-world decisions

• Comfortable operating in a hands-on, standalone capacity
• Strong communication skills with the ability to work closely with senior stakeholders

What we would like to see (non-essential)

• Experience in an SME or entrepreneurial environment
• Exposure to treasury, cash flow management, or broader finance responsibilities
• Experience working with property structures, SPVs, or investment vehicles
• Previous experience in a part-time or portfolio role

Location: London (flexible / hybrid)

Salary: £70,000 - £90,000 FTE (pro rata, depending on experience)

Start Date: ASAP

At Harmonic, we are dedicated to fostering an inclusive and equitable workplace. We actively welcome applications from individuals of all backgrounds and assure you that every candidate will be thoughtfully considered for the roles we represent, without regard to race, religion, gender expression, disability, or sexual orientation.

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At Harmonic, we are dedicated to fostering an inclusive and equitable workplace. We actively welcome applications from individuals of all backgrounds and assure you that every candidate will be thoughtfully considered for the roles we represent, without regard to race, religion, gender expression, disability, or sexual orientation.