Zero-hours contract template and employment guide

Zero-hours contracts can feel like a legal minefield. On one hand, they offer flexibility when demand changes week to week. On the other, they sit under constant scrutiny from regulators, tribunals and workers themselves.

That’s exactly why having a clear, compliant zero-hours contract template matters. It protects your business, sets expectations from day one, and helps you offer flexibility without compromising on worker rights.

This guide walks you through how zero-hours contracts work in the UK, what the law actually says, and provides a robust checklist for creating a zero-hours contract template to help you stay compliant. You’ll also see how tools like HR software can take the admin and risk out of managing casual contracts as your workforce grows.

What is a zero-hour contract?

A zero-hours contract is an agreement where you do not guarantee a minimum number of working hours. Instead, you offer work as and when it’s available and generally the individual can choose whether to accept it.

That flexibility works both ways. As an employer, you’re not obliged to provide work and the individual is not obliged to accept shifts. This is why zero-hours contracts are sometimes referred to as casual contracts.

It is the ultimate “as and when” arrangement. Unlike a permanent employee who might have a guaranteed 37.5 hours a week, a zero hours worker might work 20 hours one week and zero the next. This arrangement is purely about flexibility. It suits businesses with fluctuating demand, like hospitality venues during peak seasons or healthcare providers needing bank staff.

Another variation on a zero-hour contract is when the employer is under no obligation to provide any guaranteed hours, but when they do roster an employee to work a shift, they do have to accept it.

However, “casual” does not mean unprotected. Even without guaranteed hours, people engaged under zero-hours contracts still have statutory rights. Understanding that distinction is critical before you start using a template or issuing contracts.

This is where many employers go wrong. They assume zero-hours means zero responsibility. In reality, the way you manage hours, pay and expectations can directly affect employment status and legal risk.

Are zero-hour contracts legal?

Yes, zero-hours contracts are legal in the UK. But they are tightly regulated.

The law allows you to use zero-hours contracts provided you respect key statutory rights. These include the National Minimum Wage, paid annual leave, rest breaks, and protection from unlawful discrimination.

Importantly, exclusivity clauses are banned. You cannot stop someone on a zero-hours contract from working elsewhere unless very limited exceptions apply. Your policy on zero hours contracts should make this clear to avoid automatic unenforceability.

Tribunal cases often hinge not on the existence of a zero-hours contract, but on how it’s used in practice. If someone works regular hours over a long period, they may gain permanent employee status regardless of what the contract says.

This is why many employers combine a strong written contract with structured onboarding software, ensuring expectations, policies and status are clearly explained from the start.

Benefits of zero-hour contracts

When used correctly, zero-hours contracts can be a genuine advantage for your business. Flexibility is a superpower for small and medium-sized enterprises (SMEs).

They give you the ability to scale your workforce up or down in line with demand. 

For seasonal businesses, project-based work or unpredictable trading patterns, this flexibility can be the difference between profitability and wasted wage costs. These contracts shine brightest in sectors where demand is as unpredictable as the British weather, examples include:

• Hospitality and catering: Bars, restaurants, and event companies use them for peak shifts and events.
• Retail: Shops often need extra hands during Christmas sales or stocktaking.
• Health and social care: Care homes and agencies use “bank staff” to cover sickness or sudden influxes of patients.
• Delivery and logistics: Couriers and drivers often work on ad-hoc arrangements.
• Leisure and tourism: Theme parks and seasonal attractions rely heavily on casual labour.

Zero-hours contracts can also widen your talent pool. Students, carers and semi-retired workers often value the freedom to accept work around other commitments.

From a cash-flow perspective, paying only for hours worked can ease pressure during quieter periods. When paired with digital HR software, managing rotas, pay and compliance becomes far less time-consuming.

Of course, these benefits only hold up when contracts are clear and workers feel treated fairly. That’s where the downsides need equal consideration.

Disadvantages of zero-hour contracts

Flexibility comes with trade-offs. The biggest risk is uncertainty.

For workers, unpredictable income can create financial stress. For employers, that uncertainty can translate into lower availability when you need staff most. There’s also reputational risk. Zero-hours contracts attract media attention, and poor practices can damage your employer brand quickly.

From a legal perspective, inconsistent scheduling or long-term regular hours can blur employment status. That’s when disputes arise over holiday pay, notice and unfair dismissal rights.

Being upfront in your contract, tracking working patterns and reviewing arrangements regularly can help mitigate these risks. If you’re unsure where you stand, HR advisory support can give you clarity before problems escalate.

Understanding employment contracts

Zero-hours contracts sit alongside permanent and fixed-term agreements.

Each contract type serves a different purpose. Permanent contracts offer stability. Fixed-term contracts suit defined projects. Zero-hours contracts support fluctuating demand.

Problems arise when employers use the wrong contract for the reality of the working relationship. If someone works regular hours indefinitely, a zero-hours contract may no longer be appropriate.

If you know how long a project will last but not exact hours, fixed-term may be more appropriate. If demand is genuinely unpredictable, zero-hours may fit better.

Using the wrong contract creates confusion and legal exposure. Matching contract type to business reality is a smart risk-management move.

Defining employment status in contracts

Employment status is not just a label. It determines tax treatment, statutory rights and your obligations as an employer.

An individual on a zero-hours contract may either be a worker or an employee depending on exactly how they are engaged.

Generally speaking, someone will be more likely to be a worker where there is no obligation on them to be offered work or to accept shifts, and they are more likely to be an employee when they are required to work any shifts they are allocated. 

Workers have less statutory rights, only employees have:

• Protection against unfair dismissal.
• Statutory redundancy pay.
• Minimum notice periods if employment ends.
• Statutory maternity, paternity, adoption, and shared parental leave (workers get pay, but not leave).
• Right to request flexible working.
• Time off for dependants/emergencies. 

Workers don’t get any of these rights, but both workers and employees are entitled to:

• National Minimum Wage.
• Paid statutory holiday entitlement.
• Protection against discrimination.
• Rest breaks.
• Protection against unlawful deduction from wages

Your contract should reflect this accurately, without trying to disguise the facts. Tribunals look beyond wording to how work is actually carried out. Clear status definitions protect you, but only if your practices align with them.

Zero hours contract template checklist

A zero-hours contract should never be vague. The more flexible the arrangement, the more precise your wording needs to be. Below is a practical checklist of what to include, with written examples you can adapt for your business.

• Employment status clause: Clearly state whether the individual is a “worker” or an “employee.”
  • Example wording: “You are engaged as a [worker/employee] under this agreement. This means you are entitled to [list relevant statutory rights]. You [are/are not] entitled to protection against unfair dismissal or statutory redundancy pay.”
• The “zero hours” clause: Explicitly states that there’s no obligation for you to offer work and no obligation for them to accept it (unless you do require them to work rostered shifts—in which case, state that clearly).
  • Example wording (no obligation): “The Company is under no obligation to offer you work, and you are under no obligation to accept any work offered. You may decline work opportunities without penalty.”
  • Example wording (must accept rostered shifts): “The Company is under no obligation to offer you work. However, when you are rostered to work a shift, you are required to work that shift unless you have a reasonable excuse.”
• Pay rate and payment terms: Hourly rate (at least National Minimum Wage), when they’ll be paid, and how hours are recorded.
  • Example wording: “You will be paid £[X.XX] per hour for all hours worked. Payment will be made monthly in arrears on the [last Friday] of each month via BACS transfer. You must submit accurate timesheets by [date] each month.”
• Holiday entitlement and accrual: How holiday is earned and how it’s paid.
  • Example wording (12.07% accrual method): “You are entitled to statutory annual leave, which will accrue at a rate of 12.07% of hours worked. Holiday pay will be paid with your regular wages and shown separately on your payslip. You may request to take unpaid time off subject to the Company’s approval.”
  • Example wording (average earnings method): “You are entitled to 5.6 weeks of paid holiday per year, calculated based on your average weekly earnings over the previous 52 weeks. You must request holiday in advance and receive written approval before taking leave.”
• Sickness and sick pay: What happens if they’re unable to work due to illness.
  • Example wording: “If you are unable to work due to illness, you must notify your line manager as soon as possible. You may be entitled to Statutory Sick Pay (SSP) if you meet the eligibility criteria. The Company does not provide contractual sick pay.”
• Notice period and termination: How much notice is required from both sides to end the arrangement.
  • Example wording (worker): “Either party may terminate this agreement by giving [one week’s] written notice. The Company reserves the right to terminate immediately in cases of gross misconduct.”
  • Example wording (employee): “You are entitled to receive [statutory minimum notice or longer]. Either party may terminate this agreement by giving [notice period] written notice. The Company reserves the right to terminate immediately for gross misconduct.”
• Exclusivity clause (must not be included): What to include: A statement confirming they can work elsewhere.
  • Example wording: “You are not required to work exclusively for the Company. You are free to accept work from other employers.”

You should also make sure your contract includes all the matters required to be included in a “written statement of employment particulars” which is a mandatory requirement when engaging any new employee or worker.

Additional clauses to consider including

Don’t forget to think about important safeguards:

• Confidentiality: Protect sensitive business information.
• Data protection: Explain how you’ll handle their personal data (GDPR compliance).
• Grievance procedure: Give them a route to raise concerns.
• Health and safety: Outline their responsibilities and yours.
• Right to work: Confirm you’ve checked their eligibility to work in the UK.

Using a structured template ensures nothing critical is missed. It also makes your contracts easier to manage consistently as your workforce grows.

Zero-hour contract holiday pay

One of the most misunderstood areas of zero-hours contracts is holiday pay.

Even without guaranteed hours, zero-hours workers are entitled to paid annual leave. The statutory minimum is 5.6 weeks per year, pro-rated based on hours worked. Holiday pay should reflect average earnings, not just basic hourly rates. If hours vary, this calculation must be handled carefully to avoid underpayment.

Many employers now use the 12.07% accrual method, which reflects statutory leave as a percentage of hours worked. While widely used, it must be applied correctly and transparently.

Clear wording in your contract, supported by accurate payroll processes, is essential here. Mistakes around holiday pay are one of the most common causes of tribunal claims.

Alternatively, you can calculate holiday pay based on average earnings over the relevant reference period. This approach can be more accurate but requires good record-keeping.

Whichever method you choose, consistency matters. Automating calculations through payroll-integrated HR systems reduces error and saves time.

Zero-hour contract notice period

How do you handle notice periods when there are no guaranteed hours?. Zero-hours contracts don’t remove the need for notice. They simply change how notice works.

Your contract should explain how much notice is required to end the arrangement, even when no shifts are scheduled. This applies to both parties.

In practice, notice periods for zero-hours contracts are often short. What matters most is clarity. Ambiguity creates disputes, especially where work has been regular. Setting expectations in writing protects both sides. It also reinforces that the relationship is governed by agreed terms, not informal arrangements or assumptions.

If the individual is engaged as an employee rather than a worker they will be entitled to statutory minimum notice periods.

Handling contract termination

Finally, how do you say goodbye?

Terminating a zero hours contract is generally simpler than a permanent one, but you still can’t terminate for a discriminatory reason, and if an individual is engaged as an employee rather than a worker, they may be entitled to claim unfair dismissal. 

Be transparent. If you no longer need their services, tell them. Follow the notice period in the contract. Pay them for any accrued holiday they haven’t taken. Doing it the right way protects your reputation and keeps you on the right side of employment law.

Ready to simplify your hiring?

Navigating the world of zero hours contracts doesn’t have to be a legal minefield. With the right template and a clear understanding of the rules, you can build a flexible workforce that helps your business soar.

At Employment Hero, we make employment easier and more valuable for everyone. From smart contracts to automated payroll, we take the admin off your plate so you can focus on growing your business.

Stop drowning in paperwork. Discover a better way to manage your team today.