Employment Law Guide for UK Startups and SMEs: Contracts, Hiring and Compliance

Reviewed by the Legal Foundations editorial team. Last updated: March 2026.

Employment law is the area where growing businesses get caught out most often. Not because the rules are especially obscure, but because founders routinely underestimate how much legal obligation comes with hiring people — and how quickly it catches up with them.

A poorly drafted employment contract, a misclassified contractor, an informal dismissal, or a redundancy handled without due process can result in tribunal claims that cost tens of thousands of pounds to defend — even if you ultimately win. Preventative legal hygiene is far cheaper.

This guide covers what UK employment law requires of you as an employer, the documents you need, and the common mistakes that trip up growing businesses.

Table of Contents

Why Employment Law Matters More Than Founders Think

Many founders treat employment law as a compliance overhead — something to deal with later, once the business is more established. That’s the wrong approach, for several reasons.

The exposure is personal and financial. Employment tribunal claims can result in significant compensation awards. Unfair dismissal compensation is currently capped at the lower of 52 weeks’ pay or £118,223 (from April 2025; reviewed annually each April). Discrimination claims have no cap at all.

The law applies from day one. As soon as you hire your first employee, employment law obligations apply. There’s no grace period for startups.

The tribunal system is accessible. Employment tribunals are designed to be accessible to claimants without legal representation. This means disgruntled former employees regularly bring claims — and many succeed because the employer didn’t follow proper procedure.

Investor scrutiny. As your company grows and approaches investment rounds, investors will conduct employment-related due diligence. Undocumented arrangements, misclassified contractors, and missing employment contracts are red flags.

The good news is that most compliance obligations are relatively straightforward to meet if you set things up correctly from the start.

A note on upcoming changes: The Employment Rights Act 2025 (formerly the Employment Rights Bill) is the most significant overhaul of UK employment law in a generation. It introduces major changes including unfair dismissal as a day-one right (removing the current two-year qualifying period), restrictions on zero-hours contracts, stronger collective redundancy obligations, and enhanced rights to flexible working. Implementation is phased, with some provisions already in force and others expected from 2026 onwards. If you’re hiring now, you should be setting up employment arrangements with the new landscape in mind. A specialist employment solicitor can advise on the transitional rules.

Before You Hire: Employee vs Contractor — Getting the Classification Right

One of the most consequential decisions you’ll make when taking on people to work in your business is whether to engage them as employees, workers, or independent contractors (self-employed). These three categories have fundamentally different legal implications.

The three categories

Employees have the most legal protection. They are entitled to:

  • A written statement of employment particulars (by day one of employment)
  • Minimum wage
  • Holiday pay (5.6 weeks per year)
  • Statutory sick pay
  • Pension auto-enrolment (if they earn above the threshold)
  • Protection from unfair dismissal (after two years’ continuous employment)
  • Redundancy pay (after two years)
  • Maternity/paternity/adoption/parental leave rights
  • Protection from discrimination

Workers (a middle category) are entitled to most of the above but with less job security. Gig economy workers, zero-hours workers, and some agency workers typically fall into this category.

Self-employed contractors have no employment rights. They are responsible for their own tax. They can choose when and how they work. The business has minimal obligations towards them beyond what’s in the contract.

Why misclassification is dangerous

Many businesses engage people as contractors to avoid employment obligations and reduce cost. Sometimes this is legitimate. Often it isn’t.

HMRC and employment tribunals look at the substance of the relationship, not the label in the contract. The key questions are:

  • Does the business control how, when, and where the work is done? (Control test)
  • Does the individual have to perform the work personally, or can they send a substitute? (Personal service test)
  • Is the individual genuinely in business for themselves, taking commercial risk? (Business on own account test)

If someone works exclusively (or almost exclusively) for your business, works set hours, uses your equipment, and takes instructions from your management — they are almost certainly an employee or worker, regardless of what their contract says.

The risks of misclassification are serious:

  • HMRC can reclassify arrangements and demand backdated income tax and National Insurance (including the employer’s NI your business should have paid)
  • An individual can bring an employment tribunal claim for employee or worker rights at any time
  • IR35 legislation adds an additional layer of complexity for engagements through personal service companies

If you’re in doubt about how to classify someone, take legal advice before you start the engagement.

The Employment Contract: What Must Be Included by Law

Since April 2020, every employee and worker must be given a written statement of employment particulars from day one of employment. This is a legal requirement, not a nicety.

The statement must include:

  • Employer’s name and address
  • Employee’s name, job title, and start date
  • Place of work
  • Remuneration (pay rate and frequency)
  • Working hours
  • Holiday entitlement
  • Any probationary period terms
  • Any other benefits (sick pay, pension, etc.)
  • Notice periods
  • Whether a collective agreement affects the role

Beyond the minimum statutory requirements, a well-drafted employment contract will also include:

  • Probationary period: Typically three to six months, during which a shorter notice period applies and dismissal is simpler
  • Confidentiality obligations: Restrictions on using or disclosing confidential business information
  • IP assignment clause: Confirmation that IP created by the employee in the course of their employment belongs to the company
  • Post-termination restrictions: Non-solicitation and non-competition clauses (see below)
  • Garden leave provision: The ability to require an employee to stay away from work during their notice period while remaining employed
  • Disciplinary and grievance procedures: Either set out in the contract or incorporated by reference to a staff handbook

Post-termination restrictive covenants deserve special attention. These clauses — which prevent departing employees from competing with you, soliciting your clients, or poaching your staff — are only enforceable in English law if they go no further than is reasonably necessary to protect a legitimate business interest. Poorly drafted restrictions are routinely held void by courts. If protecting against competition from ex-employees is important to you, get these clauses drafted by a solicitor.

→ Use our free employment contract template

Directors’ Service Contracts vs Employment Contracts

If you have directors who are also employees (the majority of company directors), they need both a directorship appointment and an employment contract — or, more precisely, a director’s service contract. These are not the same thing.

A director’s service contract is essentially an employment contract for directors. It covers everything an employment contract covers, but also addresses:

  • The director’s duties and responsibilities to the company
  • Disclosure and conflict of interest provisions
  • Compensation on removal (important: if a director is removed from their directorship, the service contract doesn’t automatically terminate — you may be liable for the notice period)
  • Any enhanced termination provisions

Companies with a remuneration committee and any listed companies have additional regulatory requirements around directors’ service contracts.

Under the Companies Act 2006, directors’ service contracts with a term of more than two years must be approved by shareholders. This is often overlooked by early-stage companies.

→ Use our free director’s service contract template

Key Employment Law Obligations: Statutory Rights, Minimum Wage, Working Time

Employment Law Guide for UK Startups & SMEs

National Minimum Wage and National Living Wage

All workers (not just employees) are entitled to the National Minimum Wage. The rate depends on age:

  • National Living Wage (21 and over): £12.21 per hour from April 2025
  • 18–20: £10.00 per hour
  • 16–17 and apprentices: £7.55 per hour

These rates increase from 1 April 2026 to: £12.71 (21+), £10.85 (18–20), and £8.00 (under 18/apprentice). Build the upcoming increase into any payroll planning now.

Minimum wage applies to all working time, including overtime. Deductions from pay that reduce take-home pay below minimum wage (such as uniform costs or tool rental) may be unlawful. The penalties for underpayment are significant: employers must repay arrears, pay a penalty of up to 200% of the underpayment (minimum £100), and may be named publicly by HMRC.

Holiday entitlement

All workers are entitled to 5.6 weeks’ paid holiday per year (28 days for a full-time employee, inclusive of bank holidays). Holiday accrues from day one of employment.

Workers are entitled to be paid their normal remuneration during holiday — not just basic pay. If a worker regularly receives commission, overtime, or other variable pay, their holiday pay must reflect this.

Carry-over rules changed significantly following case law developments. In some circumstances, unused holiday can now carry over for extended periods.

Working time regulations

The Working Time Regulations 1998 impose limits on working hours:

  • Maximum 48 hours per week (averaged over 17 weeks) — workers can opt out individually in writing
  • At least 11 consecutive hours’ rest per 24-hour period
  • Rest breaks of at least 20 minutes for shifts of more than six hours
  • One day off per week (or two days off per fortnight)

Pension auto-enrolment

If you employ anyone who earns above the earnings trigger (currently £10,000 per year) and is between 22 and state pension age, you must automatically enrol them in a qualifying workplace pension scheme and make minimum employer contributions (currently 3% of qualifying earnings). You must also re-enrol any workers who have opted out every three years.

Non-compliance with auto-enrolment is policed by The Pensions Regulator and can result in fines.

Employer National Insurance

From April 2025, the employer National Insurance secondary threshold was reduced from £9,100 to £5,000 per year. The employer NI rate on earnings above that threshold also increased to 15%. For most small businesses, this significantly increased the cost of employment. Factor this into hiring plans and salary negotiations.

Statutory sick pay

Employees who are unable to work due to illness are entitled to Statutory Sick Pay (SSP) — currently £118.75 per week (from April 2025) — from the fourth day of absence for up to 28 weeks. You cannot contract out of SSP.

Managing Performance and Disciplinary Procedures

Employment law doesn’t prevent you from managing underperformance or misconduct — but it requires you to do so fairly and with the right process. Tribunals regularly find dismissals unfair not because the dismissal was wrong in substance, but because the employer failed to follow a fair process.

The ACAS Code of Practice on Disciplinary and Grievance Procedures sets out the expected standard. It’s not legally binding, but employment tribunals take it into account and can adjust compensation by up to 25% if an employer unreasonably fails to follow it.

Disciplinary process: the basics

For most disciplinary issues:

1. Investigation — gather the facts before taking action

2. Written notification — inform the employee of the allegations in writing and invite them to a meeting

3. The meeting — give the employee the opportunity to respond; they have the right to be accompanied by a trade union representative or colleague

4. Decision — communicated in writing, with reasons

5. Right of appeal — the employee must be given the right to appeal any decision

Sanctions range from informal warnings (for minor issues) to written warnings, final written warnings, and dismissal.

Gross misconduct

In cases of gross misconduct (theft, fraud, violence, serious breach of company policy), you may be able to dismiss without notice. But even in gross misconduct cases, you must follow a fair investigatory and disciplinary process — immediate dismissal without any process is rarely safe.

Performance management

Poor performance (as opposed to misconduct) requires its own process: a performance improvement plan (PIP), with clear targets, support, and a reasonable improvement period, before dismissal can be considered.

Need legal advice on a specific situation? Get connected with a specialist solicitor →

Redundancy: The Legal Process

Redundancy is a potentially fair reason for dismissal, but the process must be correct.

When is redundancy genuine?

Redundancy exists where:

  • The business (or a workplace) closes
  • Work of a particular kind is reduced or ceases
  • The number of employees is reduced

If you’re replacing someone doing the same role, that’s not redundancy. If you’re dismissing someone for performance and calling it redundancy, that’s not redundancy either — and tribunals see through it.

The redundancy process

Consultation: You must consult with affected employees before making redundancy decisions. For individual redundancies, meaningful individual consultation is required. For 20 or more redundancies at one establishment within 90 days, collective consultation obligations apply (with minimum 30-day or 45-day periods and notification to the Redundancy Payments Service).

Selection: If you’re selecting from a pool of employees doing similar work, your selection criteria must be objective and consistently applied. Criteria like skills, performance, attendance, and flexibility are generally acceptable. Length of service can be used but must not be the sole criterion. Automatically selecting for redundancy on the basis of a protected characteristic (pregnancy, age, disability, etc.) is automatically unfair.

Notice: Employees are entitled to statutory minimum notice (one week per year of service, up to 12 weeks), or their contractual notice period if longer.

Redundancy pay: Employees with two or more years’ continuous employment are entitled to statutory redundancy pay, calculated by reference to age, length of service, and weekly pay.

Voluntary redundancy

Offering voluntary redundancy can reduce the need for a competitive selection process and preserve goodwill. However, you’re not obliged to accept volunteers, and the selection from volunteers still needs to be fair.

Settlement Agreements

A settlement agreement (formerly called a compromise agreement) is a legally binding contract between an employer and an employee by which the employee agrees to waive their right to bring employment tribunal claims in exchange for a financial payment.

Settlement agreements are useful in a wide range of circumstances: redundancy, managed exits, dismissals where there’s some risk of a claim, and resolving existing disputes.

Key points:

  • An employee must receive independent legal advice from a solicitor on the agreement before signing. Without this, the agreement is not binding. This means you’ll typically need to contribute to the employee’s legal costs (£250–£500 is common for straightforward agreements).
  • The agreement must be in writing and signed by both parties.
  • Settlement payments up to £30,000 can usually be paid free of income tax (subject to conditions).
  • Once signed, the employee gives up their rights to bring the specified claims — making settlement agreements an effective way to achieve a clean break.

Common Employment Law Mistakes Startups Make

1. No written contracts

Employees who don’t have a written statement of employment particulars can bring tribunal claims — and you have no written evidence of what was agreed. Issue contracts on day one, without exception.

2. Treating contractors like employees

As discussed above: if you control how and when someone works, they’re probably not a contractor for legal purposes, regardless of what the contract says.

3. Informal dismissals

“I’m sorry, it’s just not working out” is not a dismissal process. Even employees on probation have some rights, and employees with two or more years of service are protected from unfair dismissal. Always follow a process.

4. Not documenting performance issues

If you’re building towards dismissal for poor performance, you need a paper trail. Verbal warnings need to be confirmed in writing. Performance improvement plans need to be documented. Without documentation, any subsequent dismissal is very hard to defend.

5. Ignoring holiday pay for variable-pay workers

If your workers receive commission or variable pay, their holiday pay should reflect this. Ignoring this and paying only basic pay during holidays creates arrears that can accumulate over years.

6. Not understanding the two-year cliff

Employees only have protection from unfair dismissal after two years’ continuous employment. This means dismissals in the first two years are lower risk — but not no risk. Claims for discrimination, whistleblowing, and various other protected categories can be brought from day one.

7. Redundancy that’s actually dismissal

Using redundancy as a euphemism for dismissal (because the employee is underperforming or has committed misconduct) is a mistake. If the role is then refilled, this will usually be used as evidence that no genuine redundancy situation existed.

8. Missing auto-enrolment deadlines

Auto-enrolment has a staging date (or a date from which obligations start for new employers). Missing these deadlines and failing to enrol eligible employees results in fines from The Pensions Regulator.

When to Get Legal Advice

Employment law is complicated enough that the “I’ll handle it myself” approach regularly backfires — even for seemingly straightforward situations.

Get legal advice before:

  • Engaging someone whose employment status is ambiguous
  • Dismissing an employee (especially one with two or more years’ service)
  • Making any role redundant
  • Implementing a disciplinary process that might lead to dismissal
  • Entering or receiving a settlement agreement
  • Hiring employees with access to particularly sensitive information (strong restrictive covenants are worth investing in)

Get legal advice early: The further into a dismissal or dispute process you go without advice, the harder it becomes to fix procedural errors. A 30-minute conversation with a solicitor at the start of a process can prevent a costly tribunal claim.

Need legal advice? Get connected with a specialist solicitor →

Frequently Asked Questions

Do I need to give an employment contract on day one?

Yes. Since April 2020, you must provide a written statement of employment particulars on or before the employee’s first day of work. Failure to do so entitles the employee to make a tribunal claim (though they can only receive compensation if they also win another claim — it’s not a standalone right to compensation).

Can I dismiss someone during their probationary period?

Yes, with notice — but you still need to follow a fair (if abbreviated) process. Dismissing during probation is simpler than dismissing an employee with two years’ service, but it’s not risk-free. Employees dismissed during probation can still bring claims for discrimination, whistleblowing, or other automatically unfair reasons.

What’s the difference between unfair dismissal and wrongful dismissal?

Wrongful dismissal is a breach of contract claim — usually because the employer failed to give the required notice period. Any employee can bring this claim from day one. Unfair dismissal is a statutory right that requires two years’ continuous employment. It covers situations where the employer didn’t have a fair reason for dismissal or didn’t follow a fair process.

Can I include non-compete clauses in employment contracts?

Yes — but they must be reasonable to be enforceable. A non-compete clause that prevents someone from working in your industry anywhere in the world for five years is unlikely to be enforceable. A clause preventing a senior salesperson from working for direct competitors in a defined geographic area for six months post-employment is much more likely to hold up. Get these drafted carefully.

What are my obligations if I take over a business and inherit its employees?

If you acquire a business as a going concern, the Transfer of Undertakings (Protection of Employment) Regulations 2006 (TUPE) will usually apply. TUPE means the employees transfer to you on their existing terms and conditions, with continuity of employment preserved. You must inform and consult with affected employees before the transfer. Taking on a business without understanding TUPE can result in significant unexpected liabilities.

How do I handle a flexible working request?

Employees have had the right to request flexible working from day one of employment since April 2024 (previously, they needed 26 weeks’ service). You must deal with requests in a reasonable manner and respond within two months. You can refuse on specified business grounds, but must explain the decision. Refusing without proper consideration is a risk.

What records do I need to keep for employment law compliance?

You must keep records of working hours (to demonstrate compliance with Working Time Regulations), pay (to demonstrate minimum wage compliance), holiday taken, and pension contributions. Keep employment contracts and any disciplinary records for at least six years after employment ends.

Build the Right Employment Foundation

Getting employment law right isn’t complicated — but it does require doing the basics properly. The documents you need:

For anything beyond straightforward hiring — complex dismissals, redundancy programmes, restrictive covenants, IR35 assessments — specialist legal advice pays for itself many times over.

Need legal advice? Get connected with a specialist solicitor →

Need a bespoke version reviewed by a lawyer? Find out about our bespoke document service → from £395.

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