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If you are hiring interns for the first time, an intern handbook can save you time, reduce confusion, and make the placement feel professional from day one. It gives your intern a clear view of how your business works, what is expected of them, and where to go for support.
For startups and small businesses, the best handbooks are short, practical, and easy to follow. They do not need to be corporate or heavy. They just need to help you onboard well, set boundaries early, and create a structured experience that supports both the intern and the business.
Why an intern handbook matters for UK employers
An intern handbook is more than a welcome document. It is a simple way to set expectations, explain your working style, and reduce avoidable questions during the placement. When interns understand how decisions are made, who they report to, and how day-to-day communication works, they settle in faster.
For founders, this also helps protect time. Instead of repeating the same instructions, you can point the intern to one clear document. That makes the experience feel more organised and low risk, especially if you are balancing hiring with fast-moving startup priorities.
A good handbook helps your intern feel confident and helps your team stay aligned from the start.
The essential sections every intern handbook should include
When asking what all must intern handbook include, start with the basics first. The document should answer the most common early questions and explain how the internship fits into your business. It should also be written in plain English so that students and graduates can understand it quickly.
If you are also building the wider hire process, it can help to align the handbook with your onboarding and development plan. Many founders pair it with a structured plan such as this employee development guide so the internship feels intentional rather than improvised.
- Company overview, mission, and what the business does
- Role expectations, working hours, and reporting lines
- Workplace policies, conduct, and confidentiality
- Onboarding steps, training, and support contacts
- How feedback, check-ins, and performance reviews will work
Company overview, mission, and team structure
Start with a brief introduction to your company. Explain what you do, who you serve, and why the internship exists. For an intern joining a startup, this context is especially useful because it shows how their work contributes to the bigger picture.
It is also worth including a simple team structure. Name the main people the intern will work with, who their manager is, and who they should contact if their supervisor is unavailable. This avoids uncertainty and helps the intern understand where they fit in the business.
Keep this section short and clear. Interns do not need a full corporate handbook. They need a practical overview they can actually use.
Role expectations, working hours, and reporting lines
Your handbook should explain what the intern will be doing, what good performance looks like, and how their tasks may change over time. This is especially important in startups, where responsibilities can move quickly. A clear role description helps the intern focus on the right priorities and avoids confusion later.
Include working hours, location expectations, availability rules, and reporting lines. If the internship is part-time, remote, or hybrid, spell out how that works in practice. These details matter for candidates too, and they should be consistent with what you say during interviews. If you want to prepare candidates better, your hiring process can also connect with resources like this guide on explaining your availability.
- Main tasks and responsibilities
- Who the intern reports to
- Expected working pattern and breaks
- Attendance, absence, and notice expectations
- How progress will be reviewed
Workplace policies, conduct, and confidentiality
Every intern handbook should cover the standards you expect at work. That includes behaviour, communication, device use, social media, data handling, and respect in the workplace. Even if the internship is short, interns still need to know how your team works and what conduct is acceptable.
Confidentiality is especially important for startups and small businesses. Interns may have access to client information, product ideas, internal documents, or commercial plans. Make it clear what must stay private, how files should be handled, and what to do if they are unsure about sharing something. If your team is shaping its culture, it may also help to review examples of positive workplace culture when deciding how to phrase this section.
If a policy matters to your business, put it in writing. Do not rely on verbal reminders alone.
Onboarding, training, and support during the internship
Interns usually need more support at the start than experienced hires. Your handbook should explain what happens in week one, who provides training, and how the intern should ask for help. This might include software access, introductions, key documents, shadowing time, and the first few tasks they will complete.
It is also useful to outline how feedback will work. For example, you might include weekly check-ins, midpoint reviews, or simple milestone updates. This helps the intern improve quickly and gives you a clear way to spot issues early. When a placement is structured properly, it feels more useful for the intern and easier for the founder to manage.
- First-day schedule and welcome steps
- Training materials and tool access
- Who to ask for help with tasks or tech issues
- Check-in frequency and feedback style
- Where the intern can find policy documents and templates
UK compliance points to cover in an intern handbook
If you are hiring in the UK, your intern handbook should reflect basic workplace compliance, even if the document is not legal advice. At a minimum, it should support your approach to health and safety, equality, data protection, confidentiality, and acceptable conduct. If your intern is treated as a worker, contractor, or employee in law, that status should be handled properly in your contract and hiring documents.
You should also make sure the handbook does not conflict with your wider employment paperwork. Keep the wording consistent with your offer letter, internship agreement, and internal policies. If you are unsure about any point, it is better to check before the placement starts than to fix problems later. A simple, consistent document is usually safer than an overcomplicated one.
- Health and safety guidance
- Equality, diversity, and inclusion expectations
- Data protection and privacy basics
- Confidentiality and information handling
- Discipline, grievance, and escalation routes where relevant
Common mistakes employers make when writing an intern handbook
One common mistake is making the handbook too long. If the document reads like a policy library, interns will not use it. Another mistake is being too vague, which leaves room for misunderstandings about hours, tasks, or reporting lines. The goal is clarity, not volume.
Founders also sometimes forget to update the handbook after the internship changes. If you introduce new software, a different schedule, or another manager, the document should reflect that. Outdated guidance creates friction quickly. The best handbooks are practical, current, and written for real day-to-day use, not just compliance filing.
- Using too much formal or legal language
- Leaving out who to contact for support
- Failing to explain remote or hybrid working
- Not matching the handbook to the actual role
- Treating the document as a one-time task instead of a living resource
How Internwise helps founders build structured internship hiring
For startup founders and small business owners, the hardest part of internship hiring is often not finding candidates. It is building a process that feels clear, manageable, and fair from the start. That is where Internwise can help. We support employers who want to hire interns and graduates with more structure and less guesswork.
If you are preparing your next placement, explore Internwise for employers to register your interest, post a vacancy, and create a more organised hiring process. You can also visit our employer resources hub for practical guidance that helps you plan the role, onboard well, and manage early-stage talent with confidence.
Internwise helps founders turn internship hiring into a structured, low-risk part of growth.
Frequently Asked Questions
How long should an intern handbook be?
Usually, shorter is better. A practical intern handbook can often fit into a few pages if it covers the essentials clearly. The aim is to help the intern understand the business, the role, and the rules without overwhelming them.
Do UK employers need a separate handbook for interns?
Not always, but a separate or tailored handbook is often useful. Interns usually need more onboarding support and clearer guidance than experienced staff, so a focused document helps set expectations and reduce confusion.
Should an intern handbook include legal policy wording?
It should include the policies and standards the intern needs to follow, but it does not need to be written in heavy legal language. Keep the tone clear and consistent, and make sure it aligns with your contracts and wider workplace policies.
Build a clearer internship process with Internwise
If you want to hire interns with more structure and less risk, Internwise can help you create a better employer experience from the first step. Register your interest, post a vacancy, and access support designed for UK startups and small businesses.
