For many SMEs, workforce planning happens when there is an immediate problem to solve.
A key employee resigns.
A busy period arrives earlier than expected.
A new contract is won.
Someone is off sick.
Suddenly, the business needs more people, more hours or different skills, quickly.
This reactive approach is understandable. Small businesses often need to respond fast, and flexibility can be one of their biggest strengths. But as UK employment law continues to change, flexibility needs to be supported by clearer planning, stronger processes and fairer employment arrangements.
The challenge for SMEs is finding a way to achieve both flexibility and compliance.
Good workforce planning helps you understand what your business needs, when it needs it and how to resource it without creating unnecessary cost, risk or pressure on your team. It also helps you prepare for changes to sick pay, working patterns, guaranteed hours and unfair dismissal rights that are being introduced through the Employment Rights Act.
What workforce planning means
Workforce planning sounds like something only larger organisations need to do, but at its simplest, it is just thinking ahead about your people.
It means asking practical questions.
- What work do we expect over the next 6, 12 or 24 months?
- What skills will we need?
- Which roles are business-critical?
- Where are we relying too heavily on one person?
- Which employees could develop into bigger roles?
- And where might we need greater flexibility?
For SMEs, workforce planning can begin with a clear conversation about where the business is heading and whether the current team structure can support that direction.
Without this planning, recruitment and staffing decisions are often rushed. That can lead to poor hiring decisions, inconsistent contracts, unclear expectations and avoidable people problems later.
Flexibility is important
Flexible working arrangements can bring real benefits to SMEs.
They can help you manage changing demand, attract a wider pool of candidates and retain good employees who need different working patterns at different stages of life. Flexibility can include part-time hours, staggered start and finish times, compressed hours, job shares, hybrid working, seasonal contracts, fixed-term arrangements or carefully managed casual work.
The important thing is that flexibility is intentional.
A flexible arrangement should work for the business and the individual. It should not be something that happens informally because nobody has had time to review working patterns, contracts or staffing levels.
When flexibility is poorly managed, it can quickly become inconsistency. One employee may be allowed to work from home regularly while another feels they are being treated differently. Someone on a casual contract may work the same hours every week without the security or clarity that arrangement should bring. Managers may agree changes verbally, with no written record of what has been agreed.
This is where flexibility can start to create risk rather than value.
The employment law changes SMEs need to factor in
The Employment Rights Act 2025 is being implemented in stages throughout 2026 and 2027. For SMEs, several of the changes have direct implications for workforce planning.
From 6 April 2026, Statutory Sick Pay changed significantly. Eligible employees no longer need to meet the previous earnings threshold, and SSP is payable from the first full day of sickness absence rather than after three waiting days. It is now paid at 80% of average weekly earnings or the weekly statutory rate, whichever is lower.
This makes absence planning more important. In a small business, even one short absence can affect service delivery, workloads and payroll costs. Having enough capacity, cross-training team members and managing absence consistently are no longer just operational considerations. They are part of responsible workforce planning.
Further changes are expected in 2027 around zero-hour and low-hour contracts. Qualifying workers are due to gain rights to guaranteed hours based on their regular working pattern, reasonable notice of shifts and payment where shifts are cancelled, moved or cut short at short notice. The detailed regulations are still being developed, with government consultation continuing during summer 2026.
From 1 January 2027, employees are expected to gain protection from unfair dismissal after six months’ service, rather than the current two-year qualifying period. That means the early stages of employment will need to be managed more carefully, with clear expectations, structured probation reviews and fair processes if concerns arise.
These changes mean that informal approaches will carry more risk.
Start with your business plans
Workforce planning should begin with the business, not the job advert.
Think about the next year.
Are you planning to grow?
Are you taking on new clients, launching a new service, entering a new market or changing the way you deliver work?
Are there busy periods that happen every year?
Are there likely to be quieter months where workload reduces?
Once you understand the likely shape of the business, you can make better decisions about the type of workforce you need.
For example, if you know demand rises every summer, a fixed-term seasonal contract may be more appropriate than repeatedly relying on last-minute casual shifts. If a particular role is consistently needed three days a week, a part-time contract may be more suitable than a zero-hour arrangement.
Matching the contract to the reality of the work is one of the most important ways to balance flexibility and compliance.
Look at your current workforce honestly
Many SMEs have grown organically. Roles have evolved, responsibilities have shifted and employees may now be doing very different jobs from the ones they were originally hired to do.
That is why it is useful to review your current workforce before looking outside for more people.
Ask yourself whether each employee’s contract reflects their actual role, working hours, location and responsibilities. Consider whether anyone is regularly working additional hours, covering responsibilities beyond their job description or working a pattern that has become more predictable than their contract suggests.
This is especially important for workers on zero-hour or low-hour contracts. If someone regularly works the same days or hours every week, you should understand that pattern now. The upcoming guaranteed-hours reforms are intended to give qualifying workers greater security where their work is already regular in practice.
A simple workforce review can highlight risks before they become urgent.
Build flexibility into the right places
Not every role needs the same type of flexibility.
Some roles may genuinely require fixed hours because clients, customers or operational delivery depend on them. Others may allow for more flexibility around location, start and finish times or how work is completed.
The key is to separate what the business truly needs from what has simply become habit.
For example, an employee may not need to be in the office five days a week to perform effectively. Equally, a customer-facing role may require set hours, but could still allow flexibility through staggered shifts or part-time arrangements.
Flexible working works best when expectations are clear. Employees should understand what is expected, when they need to be available, how performance will be measured and how the arrangement will be reviewed.
This reduces misunderstandings and helps managers avoid treating flexibility as a favour rather than a structured working arrangement.
Plan for skills, not just headcount
A common workforce planning mistake is focusing only on how many people you need.
The more useful question is: what skills does the business need?
You may have enough people in the team, but lack the skills needed to manage a new system, win a particular type of work, lead a project or support more junior staff. You may also have people with valuable skills that are underused because nobody has had a development conversation with them.
Skills planning can help you identify opportunities to develop existing employees before recruiting externally. This may include mentoring, on-the-job learning, professional training or giving someone a broader area of responsibility.
Internal development can improve retention, reduce recruitment costs and create a stronger pipeline for future growth.
It also makes the business more resilient. When more than one person understands a key process or client account, the impact of absence, holiday or resignation is much easier to manage.
Do not leave absence planning until someone is off
With Day-1 SSP now in force, absence has a more immediate payroll impact, particularly for smaller employers.
Consider where absence would have the biggest impact.
Are there roles that only one person can perform?
Are there team members who could be cross-trained?
Are workloads manageable if someone is absent for a week?
Do managers know how to record absence and carry out supportive return-to-work conversations?
A good workforce plan includes contingency. It recognises that people will be ill, take holiday, go on family leave or occasionally need time away from work.
Planning for this protects the whole team from unnecessary pressure.
Make recruitment more strategic
Recruitment is much more effective when it is linked to a plan rather than a crisis.
This is about knowing where potential pressure points are likely to arise and preparing early.
Keep job descriptions current. Maintain relationships with previous strong candidates. Build links with local colleges, apprenticeships, training providers or professional networks. Consider what kind of person you need beyond their technical experience.
A good recruitment decision considers skills, values, potential and the support needed for someone to succeed.
As unfair dismissal protection is expected to apply after six months from January 2027, SMEs should also make sure onboarding and probation processes are structured. New starters need clear objectives, regular feedback and documented review points.
That is good people management regardless of the law. It also helps reduce risk if a role does not work out.
Give managers the confidence to manage flexibility
Even the best workforce plan can fail if managers are unsure how to apply it.
Managers need to understand the basics of flexible working, absence, probation, working hours and fair treatment. They need to know when to seek advice, how to document key conversations and why consistency matters.
In SMEs, people managers are often promoted because they are technically strong. They may not have been trained to manage people issues.
Giving them practical guidance can make a huge difference. It reduces the risk of informal decisions, helps employees feel treated fairly and gives the business more confidence that policies are being applied properly.
A simple workforce planning checklist
Start by working through a few practical actions:
- Review your business plans for the next 12 months and identify likely staffing pressure points.
- Check that contracts reflect actual working hours, duties and working arrangements.
- Review zero-hour and low-hour arrangements to understand who is working regular patterns.
- Identify skills gaps and development opportunities within your existing team.
- Build contingency for absence, holiday and key-person risk.
- Strengthen onboarding and probation processes before the unfair dismissal changes take effect.
- Make sure managers understand how to handle flexibility, absence and performance fairly.
- Keep clear records so decisions are based on facts rather than assumptions.
Workforce planning is about making flexibility sustainable.
For SMEs, the strongest approach is one that combines clear business planning with fair contracts, realistic staffing levels, good communication and confident people management.
The UK employment law changes coming through 2026 and 2027 make this more important than ever. Businesses that understand their workforce now will be better placed to adapt, stay compliant and continue growing without unnecessary disruption.
How Professional Pitstop Can Help
At Professional Pitstop, we help SMEs build practical people plans that support growth without adding unnecessary complexity.
We can support you with workforce planning, employment contract reviews, flexible working policies, absence management, probation frameworks and manager training.
Whether you are growing, restructuring or simply trying to get ahead of the employment law changes, we can help you create a workforce plan that works for your business and your people.
