Taking on your first employee is one of those moments that feels bigger than it is administratively — and smaller than it is legally. Most first-time employers assume a written contract is optional, a nice-to-have they can sort out once things settle down. It isn't optional, and 'once things settle down' is exactly when it should already be in place.
What the law actually requires
In the UK, employees and workers are legally entitled to a written statement of employment particulars from day one — it has to be given no later than their first day of work, not sometime in the first month. It needs to cover the essentials: pay and how often it's paid, hours, holiday entitlement, job title and duties, notice periods, where they'll be working, and how long the job is expected to last if it isn't permanent. This isn't a courtesy. It's a legal minimum, and it applies from employee number one, not employee number ten.
A lot of small business owners conflate 'contract' with a long, lawyer-drafted document and assume they can put it off. The written statement doesn't have to be complicated — but it does have to exist, and it has to exist immediately.
The written statement isn't paperwork you get around to. It's a day-one legal requirement, and 'we're still figuring out the details' isn't a defence if it's missing.
Why a proper contract is worth more than the legal minimum
Meeting the bare legal minimum keeps you out of trouble, but it doesn't protect you. A proper employment contract goes further — probation periods with clear terms, confidentiality clauses if the role touches sensitive information, what happens to holiday pay if they leave mid-year, disciplinary and grievance procedures, and restrictions on working for a direct competitor if that's a genuine risk for your business. None of this is required by law in the same way as the written statement, but all of it is the sort of thing you badly wish you'd written down the one time you need it — usually mid-dispute, which is the worst possible time to be drafting it.
The cost of skipping it
The owners who skip a proper contract almost never get caught out on day one. They get caught out eight months later, when the relationship sours, and there's nothing in writing to fall back on. Was overtime meant to be paid or not? Was there a probation period, and did it get extended? What exactly were they meant to be doing? Without a written contract, every one of those becomes a 'he said, she said' — and ambiguity always favours whoever's arguing hardest, not whoever's right. A contract doesn't just protect the business; it protects the employee too, by giving both sides the same understanding from the start.
Getting it done without overspending
You don't need a bespoke, expensively-drafted contract for your first hire. A solid template — adapted properly for your specific role, hours and business, not just copy-pasted with the company name swapped in — covers most small businesses perfectly well. Where it's worth spending real money is if the role is senior, involves sensitive information or IP, or if you're hiring several people at once and want one template that scales. For a single, straightforward hire, a well-adapted template plus the day-one written statement covers the legal bar and most of the practical risk.
Does it change for part-time, casual or zero-hours staff?
One assumption trips up a lot of first-time employers: that the paperwork only matters for a 'proper', full-time hire. It doesn't. The written statement requirement applies to workers as well as employees, which covers most casual and zero-hours arrangements too — the specific terms will look different (hours may genuinely be variable, for instance), but the obligation to set out pay, entitlements and how the arrangement works in writing doesn't disappear because the role is part-time or flexible. A surprising number of small businesses only formalise things once someone becomes 'proper staff', and end up with a stack of undocumented casual arrangements that are just as exposed as an undocumented full-time one — arguably more so, because the flexible terms are exactly the ones most likely to be disputed later.
What tends to go wrong when owners DIY it
The most common mistake isn't skipping the contract altogether — most owners know, at least vaguely, that they should have one. It's adapting a template badly: leaving in clauses that don't apply to the actual role, using generic hours or pay structures that don't match what was verbally agreed, or forgetting to update it when the role or pay changes six months in. A contract that contradicts what's actually happening day to day is often worse than no contract at all, because it hands a dispute two competing versions of the truth instead of one. If you're adapting a template yourself, read every clause and ask honestly whether it reflects this specific hire — not just whether it sounds professional.
The bigger point
First hires are stressful enough without wondering whether you're legally exposed. Getting the contract right on day one — properly, not just the legal minimum scribbled down — is one of the cheapest bits of insurance a growing business ever buys. It takes an afternoon. Skipping it can cost a great deal more than an afternoon, at exactly the moment you can least afford the distraction.
