The rise of fractional HR leadership: What does it mean for the future of interim careers?

Fractional working is gaining ground in the UK leadership market, offering experienced professionals an alternative to traditional interim assignments and permanent executive roles. For senior HR leaders, it presents an opportunity to work across different organisations, build a portfolio of clients and apply their expertise in new ways.

But while the appeal of greater flexibility and autonomy is clear, the reality of building a successful fractional career can be more complicated. Finding consistent work, developing client relationships and maintaining a sustainable income all require careful consideration.

As the market evolves, Sophie Atkinson, Interim Recruitment Lead at Macmillan Davies explains what fractional working really mean for HR professionals, and what support they need to make it work.

Fractional leadership is becoming part of the interim market

Fractional leadership is not a new concept, but its place within the wider interim market is becoming more established. Rather than working full-time for one organisation, fractional professionals typically provide senior expertise for an agreed number of days each week or month, sometimes supporting several businesses simultaneously.

The Institute of Interim Management's 2026 survey provides an indication of this shift. For the first time, the research specifically examined fractional assignments and found that nearly a quarter of respondents' most recent assignments had been delivered on a fractional basis.

Further research from executive interim specialist Russam found that 55% of respondents within its interim executive community had undertaken a fractional role in the previous 12 months, compared with 46% in June 2025. Although these findings reflect Russam's own network, they suggest that fractional assignments are becoming an increasingly familiar part of experienced interim professionals' careers.

Within HR specifically, research published by HR Heads in December 2025 found that 20% of the interim working patterns reported involved two days per week, with a further 13% involving three days. This suggests that organisations are already exploring different ways of accessing HR expertise beyond traditional full-time appointments.

For HR Directors, People Directors and CPOs, this creates another potential career path, particularly for those with extensive experience in transformation, organisational development, employee relations or strategic people leadership.

Why are senior HR professionals considering fractional careers?

For established interim professionals, fractional working can offer greater control over the type of work they undertake and the organisations they support. Rather than committing exclusively to one assignment, they may have the opportunity to work with several businesses, applying their experience across different sectors, leadership teams and organisational challenges.

It can also allow professionals to develop a more specialised offering. An experienced HR leader might focus on supporting growing businesses through organisational change, advising leadership teams on people strategy or helping organisations develop their HR function.

However, fractional leadership is not simply a part-time version of an interim role. Traditional interim appointments often involve taking responsibility for a defined period of change, providing temporary leadership or delivering a specific project. Fractional appointments may involve an ongoing relationship, with the professional providing strategic direction and senior expertise without being present throughout the working week.

Understanding that distinction is important. The expectations, working arrangements and level of involvement can differ considerably, and professionals need to be clear about the value they provide and how they will deliver it.

The challenge of building a sustainable fractional career

Although fractional working offers greater choice, securing a consistent pipeline of opportunities remains a significant challenge.

The State of Fractional Leadership in the UK 2026 report, based on research with 180 senior fractional leaders, highlights just how dependent the market remains on personal relationships.

74.4% - Win work primarily through personal networks

43.9% - Lack confidence in generating a consistent pipeline

Source: State of Fractional Leadership in the UK 2026, FindaFractional. Findings cover fractional leaders across functions, not HR exclusively.

For professionals accustomed to securing work through established interim recruitment relationships, developing a fractional portfolio may require a different approach. Alongside delivering assignments, they must maintain their professional visibility, build new relationships, demonstrate their expertise and identify future opportunities.

There are practical considerations too. Managing several clients means balancing competing priorities, setting clear expectations around availability and ensuring that each organisation receives the support it needs. Professionals must also consider how they price their services, structure contracts and manage periods when assignments come to an end.

The flexibility can be attractive, but it does not automatically provide greater financial security or a better work-life balance. A successful fractional career requires the same commercial awareness and professional discipline as running any independent business.

Why professional networks matter more than ever

Relationships have always played an important role in interim recruitment, and the emergence of fractional working makes them particularly valuable.

In its December 2025 market research, HR Heads found that 54% of respondents had secured their roles through agency relationships and introductions. Meanwhile, the wider fractional leadership research highlights the continued importance of personal networks and referrals in finding new opportunities.

For senior HR professionals, maintaining strong relationships with specialist recruiters, former colleagues and other leaders can provide access to opportunities that may not be widely advertised. These connections can also offer valuable insight into market conditions, the types of expertise organisations are seeking and how expectations are changing.

However, professional networks should offer more than access to the next assignment. For those moving into fractional work, opportunities to exchange experiences, learn from others and remain connected to the wider HR community can be equally important.

A strong network can help professionals understand how others are approaching fractional careers, navigate common challenges and continue developing their knowledge as the market evolves.

What support do fractional HR professionals need?

As fractional working becomes more established, the recruitment industry has an opportunity to consider how it supports professionals whose careers no longer follow a traditional permanent or full-time interim structure.

Access to relevant opportunities remains important, but there is also value in helping individuals understand where their expertise fits within the market, how organisations are using fractional leadership and what they should consider when evaluating an assignment.

For experienced HR professionals, that support could include career and market guidance, introductions to relevant organisations, opportunities to build their professional profile and access to a community of peers facing similar challenges.

It is also important that fractional professionals are supported in making informed decisions about the assignments they accept. A successful appointment depends on more than the number of days agreed. There needs to be clarity around responsibilities, expected outcomes, decision-making authority and how the professional will work with the wider leadership team.

These are areas where specialist recruitment partners, with an understanding of both the HR profession and the organisations they work with, can add value.

The role of Macmillan Davies in an evolving HR talent market

At Macmillan Davies, our relationships with HR professionals extend beyond individual appointments. Through our specialist recruitment expertise, market knowledge and connections across the HR community, we work with professionals at different stages of their careers, including those pursuing interim and independent opportunities.

As fractional working develops, we recognise the importance of understanding how senior HR professionals want to work and the challenges they face in building successful careers.

For some, traditional interim assignments will remain the preferred choice. Others may be interested in combining interim, fractional and project-based work, or exploring a portfolio career for the first time.

Our role is to understand those ambitions, maintain meaningful relationships with experienced HR talent and help connect professionals with opportunities that make the best use of their expertise.

Through our wider HR community, events and market insights, we also aim to create opportunities for professionals to share knowledge, develop connections and stay informed about changes affecting their careers.

The future of interim HR careers

Fractional leadership is unlikely to replace traditional interim management. Organisations will continue to need experienced professionals who can step into full-time leadership positions, deliver transformation programmes and provide stability during periods of change.

What fractional working offers is another option, both for organisations seeking senior HR expertise and for professionals looking to shape the next stage of their careers.

The research suggests that interest in fractional leadership is growing, but it also highlights a market where finding consistent opportunities and building sustainable client relationships can be difficult.

For experienced HR professionals, the question is therefore not simply whether fractional working offers greater flexibility, but whether it provides the right balance of opportunity, stability and professional fulfilment.

As the ways organisations engage senior HR talent continue to evolve, the importance of strong professional relationships, specialist market knowledge and a supportive HR community will remain.

Considering your next interim or fractional HR opportunity?

Whether you're an established interim professional or exploring a more flexible approach to your career, the Macmillan Davies team would welcome a conversation about your experience, ambitions and the opportunities available across the HR market.

Get in touch

If you would like to discuss this article, for further insights into the HR market, or talk about your search for work or recruitment needs, please contact Sophie Atkinson directly at satkinson@mdhr.co.uk or connect with her on LinkedIn.