What Must Be in an Employment Contract in the UK?

UK employers must provide a written statement of employment particulars no later than day one of employment. This requirement sits under section 1 of the Employment Rights Act 1996 and applies to employees and workers.

Many businesses refer to this as 'the contract'. Strictly speaking, it is the statutory minimum statement, but in practice it is usually incorporated into the wider employment contract. If key particulars are missing or unclear, disputes are far harder to defend.

The legal baseline is not optional. If you do not provide required particulars, an employment tribunal can award additional compensation in certain claims, typically two to four weeks' pay, on top of any primary award.

At minimum, your written terms should cover the core statutory particulars and be drafted in plain language managers can apply consistently.

For SMEs, the practical objective is not just compliance. It is to remove ambiguity before a grievance, disciplinary process, or exit tests your paperwork.

• Employer and employee names, start date, and continuous employment date
• Job title or a clear description of duties
• Place of work and any mobility requirement
• Pay, pay intervals, and any variable remuneration basis
• Hours and days of work, including overtime expectations
• Holiday entitlement and holiday pay calculation
• Sickness reporting and sick pay terms
• Notice periods for employer and employee
• Probation terms (where used), including review and extension mechanics
• Pension details and eligibility
• Disciplinary and grievance procedures, including where the full policy is found
• Any collective agreements that affect terms
• Any required training and whether the employee must repay costs

The statutory statement is the floor, not the ceiling. Most tribunal and commercial risk sits in clauses beyond the legal minimum.

Businesses that rely only on baseline particulars are usually exposed when an employee leaves, solicits clients, or challenges post-termination conduct.

• Confidentiality obligations that survive termination
• Intellectual property ownership for work created during employment
• Data protection responsibilities for client and employee data
• Reasonable post-termination restrictions tailored to role and risk
• Garden leave rights during notice
• Set-off clauses where legally appropriate
• Flexibility clauses for role, location, and reporting-line changes

Most contract failures are not dramatic legal errors. They are inconsistencies: outdated templates, policy references that no longer exist, and terms managers apply unevenly.

If your contract says one thing but your practice shows another, tribunals usually give more weight to actual conduct and contemporaneous records than to boilerplate wording.

• Using generic templates without role-specific tailoring
• Unenforceable restrictive covenants drafted too broadly
• Missing or contradictory notice and probation wording
• No clear variation mechanism when terms change
• Inconsistent contract versions across employees in similar roles

Before issuing or reissuing contracts, review whether your terms align with current law, policies, and actual working practices.

The strongest contracts are clear, current, and consistently implemented. That combination improves day-to-day management and strengthens your position if a dispute escalates.

• Audit current contract versions and remove duplicates
• Map each clause to a live policy document
• Ensure managers are trained on key procedural terms
• Plan a lawful variation process for legacy contracts
• Schedule annual legal and operational contract review

• Employment Contracts for UK SMEs: The Complete Guide
• How to Avoid Unfair Dismissal Claims in UK SMEs