Should you hire a fractional or interim Head of Tax?

Author Jack Hart
October 28, 2025

We’ve already discussed why you should consider hiring a permanent Head of Tax for your start-up, but as an alternative, could your business benefit from hiring a fractional CFO-style tax leader or an interim executive?

If your organization is navigating complex tax challenges but isn’t ready for a full-time executive, a fractional or interim Head of Tax could be the strategic solution you need. In this article, we explore the differences between fractional and interim tax leadership, their benefits, and how to determine which is right for your unique needs and business environment.

What does an interim hire do?

An interim professional is someone hired on a temporary basis to fill a leadership role during a period of transition, such as a vacancy, restructuring, or project implementation. Unlike permanent hires, interim executives are typically brought in for their ability to quickly stabilize operations, manage urgent challenges, and maintain continuity until a long-term solution is found.

They bring deep extensive experience and are often overqualified for the role, allowing them to make an immediate impact without a long onboarding process. This hands-on approach is critical for crisis management, minimizing disruptions, and ensuring compliance during times of change.

What does a fractional hire do?

A fractional hire works with a company on a part-time, contract, or project basis, rather than as a full-time employee. This arrangement allows businesses to access specialized expertise – often at a c-suite level – without the cost or commitment of full-time salaries.

Fractional hires typically support strategic functions such as finance, HR, marketing, or tax, and are ideal for companies that need ongoing guidance but don’t require someone in the role every day. Their flexibility makes them especially valuable for SMEs, startups, and businesses entering new markets or undergoing change. They provide a fresh perspective on financial strategy, business development, and business growth, while helping manage cash flow and align tax planning with overall initiatives.

Interim vs fractional Head of Tax: which is right for your business?

Deciding between hiring an interim or fractional Head of Tax depends on your organization’s specific needs and circumstances.

Interim Head of Tax

An interim Head of Tax is usually brought in for a fixed period, often to cover for a vacancy or during a transitional phase. Key advantages of hiring an interim professional include:

  • Immediate availability: They can step in quickly to manage urgent tax issues or fill a gap during a transition
  • Focus on stabilization: An interim leader often focuses on ensuring compliance, stabilizing operations, and addressing immediate challenges
  • Project-based expertise: They can lead specific projects, such as audits or system implementations, and then depart once objectives are met

However, the nature of an interim hire means that it is not for them to set long-term strategy, which may limit their overall impact.

Fractional Head of Tax

A fractional Head of Tax works on a part-time or flexible basis, providing ongoing expertise and support. Key advantages of hiring a fractional Head of include:

  • Long-term strategy: They focus on developing and implementing tax strategies that align with the company’s long-term goals
  • Cost efficiency: Businesses can access high-level expertise without the costs associated with a full-time hire
  • Scalability: Fractional roles can be adjusted based on the company’s evolving needs, making it a flexible option

Ten benefits of hiring a fractional or interim Head of Tax

  • Cost-effectiveness – Fractional executives allow businesses to access high-level expertise at a fraction of the cost of a full-time hire
  • Flexibility – Companies can scale their tax resources based on current needs, avoiding overhead costs
  • Expertise on demand – Fractional Heads of Tax often bring extensive experience across various industries, providing insights that in-house teams may lack
  • Current knowledge – They stay updated on the latest tax laws and regulations, ensuring compliance and optimized tax strategies
  • Long-term planning – A fractional Head of Tax can help develop and implement tax strategies that align with the company’s overall business goals
  • Risk management – They can identify potential tax risks and create mitigation strategies to avoid costly penalties
  • Transition and training – A fractional executive can train existing staff, enhancing the overall capability of the team
  • Smooth transitions – They can help during periods of change, such as mergers or acquisitions, ensuring tax compliance and efficiency
  • Adaptability to business size – Startups to Enterprises: Fractional tax leaders can benefit businesses of all sizes, tailoring their approach based on specific needs and challenges
  • Networking and resources – Industry Connections: Fractional Heads of Tax often have a broad network of contacts, providing additional resources and support for the business

How Brewer Morris can help you source an interim or fractional Head of Tax for your start-up or portfolio business

A senior tax professional will always be an asset to businesses looking to enhance their tax strategy without the commitment of a full-time role. By providing expertise, flexibility, and strategic insights, they can help organizations navigate complex tax landscapes effectively.

If you are looking to hire a Head of Tax for your start-up, please don’t hesitate to submit a brief and a member of our team will be in touch.

Alternatively, if you are looking for a new Head of Tax opportunity, look at our latest opportunities.

Jobs

  • Commerce and industry
  • Permanent

Senior Tax Accountant

A well-established Fortune 500 company is seeking a Senior Corporate Tax Accountant to support U.S. income tax compliance, reporting, and planning activities. This role plays a critical part in ensuring accurate tax reporting for complex, consolidated corporate structures while partnering cross-functionally with Finance, Accounting, and external advisors. The ideal candidate brings a strong foundation in […]
  • Salary USD95000 – USD115000 per annum + cash bonus
  • Posted Posted 2 days ago

Read more

  • Commerce and industry
  • Permanent

Senior Tax Accountant

Senior Tax Accountant – Global Compliance & Reporting Confidential Client – Multinational Public Company Overview A well-established, growth-oriented multinational organization is seeking a Senior Tax Accountant to join its Global Tax Compliance & Reporting function. Reporting to a Tax Manager, this role focuses on complex U.S. GAAP income tax accounting under ASC 740, coordination of […]
  • Salary USD90000 – USD105000 per annum
  • Posted Posted 5 days ago

Read more

  • Commerce and industry
  • Permanent

Tax Manager

About the Opportunity Our client, a large and well-established U.S. organization, is seeking an Income Tax Accounting Manager to lead all aspects of income tax accounting and reporting. This role is responsible for monthly, quarterly, and year-end income tax provisions, SEC tax reporting, and coordination with third-party tax preparers for federal, state, and local income […]
  • Salary GBP120000 – GBP135000 per annum
  • Posted Posted 7 days ago

Read more

  • Commerce and industry
  • Permanent

Assistant S&U Tax Manager

This opportunity supports a $20B enterprise organization and represents one of our key clients. The role sits within a mature and highly complex corporate tax function and is primarily focused on use tax compliance across a large multi-jurisdictional footprint within the United States and Canada. The level of the role may be aligned as either […]
  • Salary USD90000 – USD115000 per annum + + cash bonus
  • Posted Posted 1 week ago

Read more

  • Commerce and industry
  • Permanent

Tax Analyst

Tax Analyst – Hybrid/Remote About the Role We are seeking a Tax Analyst to support a growing, multi‑entity organization’s tax function. This role offers a flexible hybrid/remote schedule and exposure to a wide variety of tax areas, making it an excellent opportunity for someone who wants to deepen their technical tax skillset while gaining visibility […]
  • Salary Up to USD85000 per annum
  • Posted Posted 1 week ago

Read more

Featured Content

Corporate treasury goes mainstream in the US: what’s driving the surge in demand and pay?

  • Posted March 23, 2026
Treasury compensation has entered a new era. Salaries across the U.S. are higher than ever, but the gap within treasury roles is widening at an unprecedented pace. A treasury manager in a multinational can now command tens of thousands more than someone with the same title in a mid‑market business. Senior analysts with global exposure […]
tax leadership

The future of tax leadership in the US: what skills will define the next decade?

  • Posted March 6, 2026
The role of tax leaders in the United States is undergoing a fundamental shift. As regulatory pressure increases, technology accelerates and expectations from the C-suite continue to rise, the future of tax leadership is being reshaped in real time. Over the next decade, success in senior tax roles will depend on far more than technical expertise alone.  Tax professionals operating at leadership level […]
How to build an in-house tax team

How to build an in-house tax team from scratch 

  • Posted March 6, 2026
Building an in-house tax team is a transformative step for any organization experiencing growth, complexity, or increasing regulatory pressure. While many companies rely on external advisors in the early stages, there comes a point where internal capability becomes essential, both for financial efficiency and strategic control. Whether your company is expanding internationally, navigating rapid revenue growth, or entering new product lines, […]