Diversity and Inclusion Training: A Practical Guide for UK Employers

Key Takeaways

• Acas splits effective diversity and inclusion training into two layers: a shared foundation for all staff, and extra skills training for managers and hiring panels.

• A single annual session rarely changes behaviour. Embedding training into induction and refreshing it regularly matters more than the event itself.

• CIPD's most recent review of workplace inclusion found many UK organisations are still building manager confidence to put inclusion into practice, not just stating support for it.

• Training works better when it treats attendees as individuals with their own working style, rather than sorting people into fixed categories.

• Completion figures tell you who sat through the session. They do not tell you whether anything changed. Look for behavioural signals instead.

Why training only works when it is built for behaviour change

CIPD's Resetting EDI and Reaffirming Inclusion report, published in May 2025, found that many UK organisations are still working to build manager confidence around inclusion in practice, not just support for it in policy. Acas guidance is direct about what closes that gap: training needs to be specific about what good practice looks like and how to apply it day to day, not delivered as a single generic session.

This is where a lot of diversity and inclusion training under-delivers. It becomes an annual e-learning module that gets completed and then forgotten. Our Learning & Development framework is built to close that gap between stated intention and manager confidence, rather than treat training as a compliance exercise.

For the wider business case for diversity, equity and inclusion, and how training fits into a broader people strategy, see our full guide to diversity, equity and inclusion strategy.

What good diversity and inclusion training should cover

Acas guidance on making your workplace inclusive sets out training in two layers: something every employee needs, and additional skills training for people who make decisions about others.

A shared foundation for all staff

Every employee should understand your equality, diversity and inclusion policy and, more importantly, what it means in practice. Acas is clear that training should show why valuing everyone's differences matters and how to do it day to day, not just repeat the wording of a policy document.

Extra training for managers and hiring panels

Managers and anyone involved in recruitment need training that goes further. Acas recommends specific focus on using job descriptions fairly, recognising unconscious bias when shortlisting or interviewing, and understanding the practical skills needed to lead inclusively rather than just endorse it in principle.

Building it into induction from day one

New starters should meet your equality, diversity and inclusion policy as part of induction, not months later in a separate compliance module. Embedding it early sets the expectation before habits and assumptions form.

Not sure where to start with manager training? Our HR consultants can assess what your managers already do well and build a training plan around the gaps.

Design training around individuals, not categories

Training that sorts people into fixed labels, gender, disability, age, sexuality, tends to feel like a box-ticking exercise to the people sitting through it. It also misses the point. People bring far more to work than a single characteristic, and the best training reflects that.

The strongest diversity and inclusion training focuses on skills and behaviours: how to have a fair conversation, how to make a decision without letting assumptions creep in, how to notice when someone is being spoken over or overlooked. Those skills apply whoever is in the room. Training built this way tends to stick, because it gives managers something to actually do differently, rather than a list of groups to be careful around.

How often should you refresh diversity and inclusion training?

There is no single legal minimum that fixes the frequency for you, so this comes down to judgement rather than a fixed rule. As a starting point, most SMEs we work with find an annual refresher for all staff, paired with more frequent updates for managers when policy or legislation changes, strikes the right balance between keeping the topic current and avoiding training fatigue.

Beyond the annual cycle, it is worth refreshing training after specific trigger points: a new policy, a restructure that changes who manages whom, or a pattern emerging in grievances or exit interviews that suggests a gap in understanding. Training tied to a real trigger tends to land better than training delivered purely because a year has passed.

Choosing a training format that fits your team

Format matters as much as content. A short, focused digital learning module works well for the shared, staff-wide foundation, since it is consistent and easy to track. Manager-level training benefits more from discussion and scenario practice, which tends to work better delivered as an in-house workshop built around situations your managers actually encounter, rather than generic case studies.

Many SMEs get the best results from a blend: e-learning for the baseline, followed by a facilitated session where managers can talk through real, anonymised examples from their own teams.

Turning good intentions into a working plan

It is easy to agree that diversity and inclusion training matters and harder to actually build it into how the business runs. A useful starting point is to treat it as three practical steps: take a critical look at how people are currently managed across the business, give managers the specific training they need rather than a generic overview, and make sure managers understand the part they personally play in creating an inclusive team, not just that the business has a policy saying it should exist.

Each of those steps is achievable for a small or medium-sized business without needing a large internal L&D function, provided the training itself is built around your actual team rather than bought off the shelf.

Knowing whether training has actually landed

Completion rates are the easiest thing to measure and the least useful. They tell you who attended, not what changed.

Better signals sit in day-to-day behaviour: are managers raising inclusion-related questions with HR before they become problems, rather than after. Are grievance or exit interview themes shifting over time. Is feedback from engagement surveys showing people feel more comfortable raising concerns than they did a year ago. None of these show up the week after a training session, so give it time and check back at a sensible interval, six to twelve months is realistic, rather than expecting an immediate shift.

How P3 can help

Getting diversity and inclusion training right takes more than booking a course. It means understanding where your managers already do well, where the gaps sit, and building a plan that fits a business your size rather than a generic template built for a much larger organisation.

Want training that's built around your team, not a template? Talk to our CIPD-qualified HR consultants about a diversity and inclusion training plan that fits your business and budget, whether you need a one-off session or an ongoing programme.

Frequently asked questions

How often should UK employers run diversity and inclusion training?

There is no fixed legal frequency, so this is a judgement call rather than a compliance date. An annual refresher for all staff, with additional manager-level training whenever policy, legislation or your team structure changes, is a reasonable and defensible starting point for most SMEs.

Is diversity and inclusion training a legal requirement in the UK?

General diversity and inclusion training is not mandated by name in UK law. That said, several related areas of UK employment law carry their own specific duties that can make particular training a practical necessity for your business, and this area moves quickly. It is worth checking with an employment law adviser what currently applies to your specific circumstances rather than relying on general guidance.

What's the difference between diversity and inclusion training and a DEI strategy?

Training is one practical tool within a wider strategy. A DEI strategy sets the direction, what your business is trying to achieve and why, while training gives managers and staff the specific skills to put that direction into practice day to day. Our guide to diversity, equity and inclusion strategy covers how the two fit together.

Should managers get different training to general staff?

Yes. Acas guidance recommends a shared foundation for everyone, understanding the policy and why it matters, plus additional skills training for managers and anyone involved in recruitment, covering things like fair use of job descriptions and recognising unconscious bias during selection.