When Does a Small Business Need HR Support in the UK?
Most small businesses do not decide they need HR because they reach a particular headcount.
The question usually arrives after a week where the founder has dealt with a performance issue, reviewed a contract, answered a pay question and been pulled into a manager conversation that should not need them.
None of those things is dramatic on its own. Together, they start taking leadership time away from clients, growth and the work only the founder can do.
That is usually when the question of when a small business needs HR support in the UK stops being theoretical. People decisions have become too important, too frequent or too complicated to keep sitting alongside somebody else's job.
There is no magic employee number. A stable ten-person business may need occasional advice, while a smaller company hiring quickly, introducing managers or dealing with its first difficult employee-relations issue may already need regular support.
CIPD guidance, Working as a people professional in a small organisation (2025), makes a similar distinction. In very small organisations, HR responsibilities can often sit alongside another role. As employee numbers increase, businesses generally need a more structured approach to policies, processes and people management, although that does not automatically mean hiring a full-time HR professional.
The useful distinction is between needing HR capability and needing a full-time HR employee.
The question is not really, ‘Are we big enough for HR?’ It is, ‘Has managing our people become a business responsibility that now needs proper ownership?’
How many employees before you need HR in the UK?
There is no fixed headcount at which a UK business is required to employ an HR manager or create an internal HR department.
Your employment responsibilities begin much earlier than that. As an employer, you already have obligations around areas including pay, working time, leave, employment terms, discrimination and dismissal. Those responsibilities exist whether the person dealing with them is a founder, office manager, finance director, internal HR professional or external adviser.
So we would not use headcount alone to decide how many employees before you need HR UK. We would look at complexity.
A founder with eight employees who hires once every two years and has a very stable team may need occasional HR advice rather than an ongoing service. A 15-person company hiring another ten people this year is in a different position. A 30-person business introducing managers for the first time is different again.
By the time a company has 50 or 100 employees, the number of relationships, decisions and processes involved tends to make informal people management much harder to sustain.
The CIPD's Working as a people professional in a small organisation guidance (2025) describes this well. In small organisations, the people professional is often a generalist covering everything from recruitment and policies to workforce planning, performance, pay, employee issues and development. More specialist external support may then be needed for complex work.
That is one reason we think outsourced HR can make commercial sense earlier than founders sometimes expect. You may not have enough work for one full-time senior HR person. But you may already need several different kinds of HR expertise.
What are the signs your business needs HR support?
HR rarely becomes a problem all at once.
There are usually clues first.
The founder is still approving every people decision. A finance or operations person has gradually inherited HR because somebody needed to do it. Managers are asking similar questions but receiving different answers. Contracts and policies exist, but nobody is completely sure when they were last reviewed.
Then something more difficult happens and all of those small gaps suddenly matter.
An older Small Business UK guide on outsourcing HR suggested looking at five practical areas: employee turnover, staff records, handbooks, recruitment and performance reviews. The article was published in 2019, so we would not rely on its old pricing figures today, but those operational questions remain a useful starting point.
We would add several more.
1. The founder has become the HR department
This is probably the clearest early signal.
Someone has a performance issue and comes to you. Someone wants a pay rise and comes to you. A manager is worried about an employee's absence and comes to you. A resignation arrives and you become involved in the counteroffer.
None of those conversations is necessarily a problem by itself. But if people management continually comes back to the founder, the business has not really built management capacity. It has built another dependency on the founder.
We think that becomes commercially expensive long before the business is large enough to justify a full internal HR department.
The 2019 Small Business UK article made a similar point: where the owner or another senior employee is carrying HR alongside their main role, that work takes time away from the job they were actually hired to do.
Time is only part of it. The other issue is judgement.
Founders should absolutely remain involved in major people decisions. But they should not have to work out the process from scratch every time one appears.
Aliya Vigor-Robertson makes the same point from the founder’s perspective: “That work does not disappear because there is nobody doing it. It just lands somewhere else.”
“Founders Without HR Support Struggle with People Decisions”
2. Your managers have responsibility but not enough support
There is often a point in growth where people who were brilliant individual contributors become managers.
Nobody has done anything wrong. The business has simply grown.
But managing another person properly requires a different set of skills. Giving feedback, dealing with underperformance, managing absence, handling conflict and setting expectations are all things people can learn. They do not automatically arrive with a promotion.
The CIPD event page for Managing people & growing leaders: Navigating small business challenges (15 April 2026) describes the rise of the ‘accidental manager’ and ‘accidental HR manager’, where growing businesses place people responsibilities with individuals who may have had no formal training or structure behind them.
This is one of the strongest signs your business needs HR support UK founders can look for.
If your managers repeatedly escalate ordinary people issues because they do not know what to say or what process to follow, the answer may not be more founder involvement. It may be better HR support and better management development.
3. Your people processes have grown in different directions
This happens very naturally.
Someone wrote the first employment contract. Another person created a holiday policy. Managers developed their own approach to probation.
Performance reviews started in one team but not another. Salary increases are discussed at different times depending on who manages whom.
At ten people, you can often hold a lot of this together through conversation. At 40, that becomes harder. And inconsistencies that once felt harmless can start to affect trust.
The CIPD has looked at a similar operational problem through HR systems. In its insight Operating efficiently: Implementing HR information systems in SMEs, published 11 June 2021, the CIPD reviewed 13 SME case studies implementing HR information systems and found that nine businesses previously had no HR system at all, with data often sitting across spreadsheets, paper records and manual processes.
Technology can help, but it does not decide what the process should be. Before buying another system, it is probably worth asking whether the underlying People + Culture foundations are clear.
4. You are hiring faster than your management structure is developing
Growth creates a strange problem.
The more successful the company becomes, the easier it is to postpone the internal work that supports that success.
Five new hires become ten. New managers appear. People join different teams with different onboarding experiences. Salary decisions are made individually because there is no career framework yet.
Then somebody asks what they need to do to get promoted. Nobody has a clear answer.
This is often the point where HR support for growing businesses UK companies need changes from administrative support to strategic support.
You are no longer asking somebody to write a contract. You are asking how the organisation should work as it gets bigger.
That includes questions about structure, management capability, progression, pay, engagement, retention and workforce planning.
When should a business hire HR in the UK rather than outsource it?
We do not think outsourcing is automatically the right answer.
Sometimes an internal hire is exactly what the business needs.
The useful distinction is between needing HR capability and needing one HR employee. Those are not always the same thing.
Sue Shaw makes a related point about where HR adds value as routine administration becomes easier to automate: “When the admin goes, what’s left is the work that actually required a person in the first place.”
“HR’s future: AI handles admin, but humans handle the tough work”
One in-house HR manager can know your company extremely well and be present every day. If there is enough ongoing work at the right level, that can be a sensible hire.
The trade-off is breadth.
A growing company might need senior advice on organisational design one day, support with a grievance the next, someone to update policies the following week and practical administration throughout. That is a very wide job description for one person.
JourneyHR's retained model is designed around that problem. Our website describes it as particularly suitable for businesses of 25 to 200 people whose HR requirements are increasing but who do not yet need, or have the budget for, a full internal team.
The right decision therefore depends on the work.
That need for fit rather than a one-size-fits-all model is something Aliya Vigor-Robertson has seen repeatedly through her work with growing businesses:
“After 15 plus years of running JourneyHR and working closely with business leaders and founders, I have learned that there is no single ‘right’ HR model. Every business has different ambitions, pressures and levels of internal capability. The best HR solution is one that fits the organisation as it is today, while helping it build the confidence, structure and management capability it will need for its next stage of growth.”- Aliya Vigor-Robertson, Co-Founder, JourneyHR
If you need a full-time person embedded in the business and there is enough appropriate work to keep them occupied, hire. If you need different levels of expertise at different times, outsourced HR may make more sense. And sometimes the answer is both.
Case study: Bountiful Cow, senior advice and the day-to-day work
Bountiful Cow is a good example because its CEO, Adam Foley, describes both sides of the requirement.
He says JourneyHR became trusted advisers who sit on the senior management team while also handling the day-to-day HR fundamentals. He also credits the work with helping the agency develop a benefits package that contributes to employee satisfaction.
That combination matters.
A founder considering an HR hire can easily focus on the most visible work: contracts, policies, employee questions, holiday, absence. But somebody also needs to think about the bigger questions.
What should your reward approach look like? Are managers capable of running the team you are building? Does your organisational structure still make sense? What are employees telling you about progression?
Those jobs do not always require the same level of experience. An outsourced team can give a smaller company access to both without pretending one person should be brilliant at everything.
Case study: Total Media, outsourcing can sit alongside an internal team
Outsourcing also does not have to mean replacing internal HR.
At Total Media, People + Culture Manager Emmy Greener described JourneyHR as a ‘wrap-around function’ supporting its in-house team with complex employee-relations work, talent management, training and development. She also said access to ongoing advice helped develop the internal team's own capability.
We think this is an important example because the question changes as businesses grow.
Early on, it may be: ‘Can someone become our HR team?’ Later it can become: ‘Where does our internal team need extra depth?’
There is no reason the model has to remain the same forever. Good HR support should change as the business changes.
When does outsourcing HR make commercial sense?
We would usually look for three things.
First, you have a genuine volume of people work. Second, the work requires expertise or time that the business does not currently have. Third, hiring enough internal capability to cover it would cost more or create more capacity than you actually need.
That is the point where outsourcing becomes a commercial decision rather than simply an HR decision.
The older Small Business UK article identified access to current knowledge, better-quality support and cost as common reasons for outsourcing. It also pointed to flexibility, speed and access to expertise as potential benefits.
We would add objectivity.
There are moments when somebody outside the management structure can see something more clearly.
A founder may be very close to a senior employee whose performance has deteriorated. A manager may have been avoiding a difficult conversation for months. Leadership may be convinced it needs to restructure when the real problem sits somewhere else.
An external HR partner still needs to understand the business properly. But being embedded does not have to mean losing independence.
Sometimes the most useful thing we do is tell a client that the answer they arrived with is probably not the answer we would recommend.
What sort of outsourced HR support does a growing business actually need?
Not every business needs a retainer.
We think this gets lost sometimes.
If you have one project, buy a project. If you need somebody occasionally, use ad hoc support. If people questions now arrive every week, ongoing retained support probably makes more sense. If your biggest gap is strategic and your internal team can handle the operational work, fractional HR Director support may be more appropriate.
JourneyHR currently works across several models, including a Retained HR Team, Client Collective for lighter ongoing support, project work, bulk hours and Fractional HR Director support.
The point is not to buy as much HR as possible. It is to buy the level of HR capability your business actually needs.
How JourneyHR can help
We have worked with founder-led and growing businesses since 2010, and the conversation often starts before the client is completely sure what kind of HR support they need.
That is fine.
We can look at what is currently sitting with the founder, what managers are handling, where the risk or workload is increasing and what People + Culture work the business is likely to need over the next stage of growth.
For some companies, that means becoming the external HR team. We combine senior HR Director input with consultants and assistants who can handle the operational work, and we work remotely and in person depending on what the business needs. JourneyHR's retained model is specifically designed to give growing companies access to wider expertise without automatically building a full internal department.
For smaller businesses, our Client Collective provides ongoing access to experienced HR support without committing to a full internal function. For one-off requirements, we also work on individual projects and ad hoc pieces of work.
If you are deciding when should a business hire HR UK, outsource it or use a mixture of the two, we are happy to talk through the work first.
Sometimes our answer will be that you need more support. Sometimes it will be that you do not need as much as you thought. Either answer is useful.
Get in touch: Contact JourneyHR or explore JourneyHR’s Retained HR Support + Services.
Final thought
We would not wait for a particular headcount.
The better trigger is noticing that the way you managed people when there were eight of you no longer works now there are 20, 40 or 80.
That is a normal part of growing a business.
You do not necessarily need an HR department. You do need somebody who owns the thinking, makes sure the basics are right and gives managers somewhere credible to go when the answer is not obvious.
The earlier that becomes intentional, the less likely you are to build your People + Culture approach in a hurry after something has already gone wrong.
FAQs
How many employees does a UK business need before it should have HR support?
There is no single employee number that determines when HR support is needed. CIPD guidance, Working as a people professional in a small organisation (2025), notes that very small organisations can often manage people responsibilities alongside another role, but a more structured approach usually becomes necessary as employee numbers and organisational complexity increase. Look at workload, hiring, management capability and employee issues rather than headcount alone.
Is a small UK business legally required to have an HR department?
A business does not need a dedicated HR department simply because it reaches a particular size. It does, however, have employment responsibilities covering areas such as employment terms, pay, working hours, leave, discrimination and dismissal. Somebody therefore needs to make sure those responsibilities are handled correctly, whether that is internally or with external support.
What are the main signs that a small business needs HR support?
Common signs include the founder spending increasing time on employee issues, managers continually escalating people decisions, inconsistent contracts or policies, rapid recruitment, recurring performance problems and a lack of clear processes around pay, progression or absence. The need becomes stronger when HR activity is taking significant time away from people's actual jobs or requires expertise the business does not have.
Is it better for a growing business to hire an HR manager or outsource HR?
It depends on the work you need done. A full-time HR manager can make sense when there is enough consistent work at the appropriate level. Outsourcing can work better when you need a mixture of senior advice, specialist expertise and day-to-day delivery without building a full team. Some businesses also use external HR alongside an existing internal People + Culture function.
When should a small business outsource HR rather than continue handling it internally?
We would consider outsourcing when HR work is consuming substantial leadership time, managers need regular advice, people processes are becoming inconsistent or the business needs expertise it cannot reasonably maintain in-house. Outsourcing can also make sense during rapid growth, organisational change or before an internal HR hire is commercially justified. The aim is not to hand away people responsibility, but to give the business better capability to manage it.
