Types Of Employment Contracts In NZ

Hiring your first (or next) team member is exciting - but it’s also one of those moments where getting your legal foundations right matters.

In New Zealand, while an employment relationship can technically start without a signed agreement, employers have legal obligations around providing a written employment agreement and key terms, and disputes can arise quickly if expectations aren’t documented. The type of employment contract you use can affect everything from hours and leave to termination processes and business risk.

This guide breaks down the main types of employment contracts used in NZ, when each one makes sense, and what you should build into your documents so you’re protected from day one.

Why The Type Of Employment Contract Matters (More Than You Might Think)

Choosing between different employment contract types isn’t just a “HR preference” - it’s a legal and commercial decision.

The contract type you use can impact:

• Your flexibility (for example, can you reduce shifts or change days easily?)
• Your obligations (for example, minimum hours and availability expectations)
• Your payroll and leave liabilities (especially around annual leave and public holidays)
• Your ability to end the relationship lawfully (termination risk is one of the biggest employment pitfalls for small businesses)
• Your compliance position if there’s ever an Employment Relations Authority dispute

In most cases, it’s not enough to label someone “casual” or “contract”. If the working arrangement looks like permanent employment in practice, the law may treat it that way - regardless of what the document says.

If you’re starting from scratch, it’s often safest to use a properly tailored Employment Contract and match the contract type to the reality of the role.

What Must Be In Any Employment Contract In NZ?

Before we get into the different types of employment contracts, it helps to know what all NZ employment agreements generally need to cover.

At a practical level, your employment agreement should clearly set out:

• The parties (your business and the employee)
• The role and duties
• Where the work is performed (including whether remote work is allowed)
• Hours of work (including days, roster expectations, and any flexibility)
• Pay (wage/salary, pay cycle, deductions if any, and how overtime is treated)
• Leave entitlements (sick leave, annual leave, bereavement leave and public holidays)
• Termination (notice periods and process)
• Confidentiality and protection of business information
• Policies (for example, health and safety, IT use, bullying/harassment, performance)

You’ll also want the agreement to reflect your operational needs - for example, if you run a retail business with changing demand, you may need clear wording around roster changes and availability.

Where businesses get into trouble is when the contract is vague or copied from a generic template that doesn’t match how the employee actually works. If you want enforceability and fewer disputes later, the agreement needs to be written for your business, your industry, and your workflow.

Permanent Employment Contracts (Full-Time And Part-Time)

Permanent employment is the most common and usually the simplest option for roles that are ongoing. Under this model, the employment relationship doesn’t have a set end date.

Full-Time Permanent Employment

Full-time employment typically means the employee works standard hours (often around 30–40 hours a week, depending on the role and contract). This is a common structure if:

• the role is core to the business (e.g. operations, management, key service delivery)
• you need consistent staffing and long-term stability
• you’re investing time into training and want retention

Employer tip: be specific about hours and how additional hours are approved. If you regularly need extra coverage, it’s better to address it clearly rather than relying on “reasonable overtime” wording that creates confusion later.

Part-Time Permanent Employment

Part-time employees are also permanent employees, but they work fewer hours than full-time staff. This is common in hospitality, retail, admin, and service businesses where staffing levels vary.

Part-time is a great fit when:

• you want continuity but don’t need full-time coverage
• you have predictable peak days (e.g. weekends)
• you’re scaling and want to build a team gradually

The key legal/operational issue here is making sure the contract clearly sets out:

• their agreed hours (and whether hours can vary)
• how rosters are issued and changed
• what happens if you need to reduce hours

If you’re considering cutting shifts during quieter periods, you generally can’t just reduce hours unilaterally unless your agreement supports it and you follow a proper process. This is one reason it’s worth getting your contracts right upfront, especially if your business has seasonal fluctuations. (If this is something you’re facing now, the risks and process are closely tied to reducing staff hours.)

Fixed-Term Employment Contracts (And When They’re Actually Allowed)

Fixed-term employment is where the agreement has a defined end date or end event (for example, “until the project is completed” or “until the employee returns from parental leave”).

This can be helpful for small businesses, but it’s also an area where employers often get it wrong.

When Fixed-Term Contracts Make Sense

Fixed-term contracts are usually used where there’s a genuine reason the role is temporary, such as:

• covering parental leave or extended sick leave
• a short-term funding arrangement (e.g. grant-funded role)
• a time-limited project with a clear end point
• seasonal workload increases (depending on how it’s structured)

What You Need To Do To Use A Fixed-Term Agreement Properly

As a general rule, you should:

• clearly state it’s fixed-term
• set out the reason for the fixed term (and make sure it’s genuine)
• explain how and when it will end
• avoid rolling renewals that make the role look permanent

If you use successive fixed-term contracts to fill what is really an ongoing role, you can end up exposed to claims that the employee was effectively permanent and was unjustifiably dismissed when the “term ended”. This risk is particularly relevant if you’re using longer fixed terms (like 12 months) without a clear temporary reason. (This issue commonly comes up with 12-month fixed-term contracts.)

Practical takeaway: fixed-term should be a tool for genuinely temporary needs, not a workaround to “try someone out” without running a proper performance process.

Casual Employment Contracts (Common, But Often Misused)

Casual employment can be a good fit for some small businesses - especially those with fluctuating demand - but it’s also one of the most misunderstood types of employment contracts in NZ.

In plain terms, a casual employee is usually someone:

• who works intermittently or irregularly
• where there’s no firm ongoing commitment by either party for future work
• who can generally accept or decline shifts (depending on the contract)

When Casual Employment Makes Sense

Casual employment often works well if:

• you need “true as-needed” coverage (e.g. events, unexpected peaks)
• your roster isn’t predictable week-to-week
• you’re building a bench of staff for busy periods

The Big Risk: “Casual” In Name, Permanent In Practice

If your casual employee ends up working regular hours on an ongoing basis, they may actually be considered permanent (part-time) in practice. That can have flow-on effects for their leave entitlements and termination rights.

This is why your contract and your rostering practices need to match. If someone is working every Tuesday/Wednesday/Thursday for months, it’s worth reviewing whether the arrangement should be converted to part-time permanent.

Leave entitlements for casuals can also be confusing for employers - especially around annual leave and public holidays - and it’s worth making sure your payroll and contract language align with the Holidays Act framework. For a deeper dive into what often goes wrong here, see how casual workers’ leave entitlements can work in practice.

Employer tip: if you want the flexibility of casual work, avoid locking in guaranteed hours. If you need guaranteed hours, a part-time agreement is usually a cleaner option.

Other Common Contract Setups Employers Use (Hours, Trials, And Termination)

While “full-time vs part-time vs casual vs fixed-term” are the main categories, there are a few contract features and scenarios that come up constantly for small businesses.

Minimum And Maximum Hours (And Availability Clauses)

Many small businesses want flexibility without overcommitting. A well-drafted contract can help by setting:

• minimum guaranteed hours (what you must provide/pay)
• additional hours (how they’re offered and accepted)
• availability expectations (what you need the employee to be available for)

The key is to keep it realistic and operationally accurate. If your contract says “hours will be 20–40 per week” but you only ever roster 12, you’re creating unnecessary risk and confusion.

Trial Periods And Probation (Handle With Care)

Many employers ask about “trial periods” and “probation”. These can be useful tools, but only if:

• they’re documented correctly in the employment agreement, and agreed before the employee starts work (this timing point is critical)
• you meet any eligibility requirements that apply to trial periods in your situation
• you still follow a fair process (especially for probation)

Because the legal requirements can be technical and can change over time, it’s worth getting advice before relying on a trial or probation clause as your safety net.

Notice Periods And Payment In Lieu

Every contract should deal with termination notice, including how much notice is required and what happens if either party wants to end the employment quickly.

Some businesses include a “payment in lieu of notice” option, which can allow you to pay out the notice period instead of requiring the employee to work it. This needs to be handled carefully and should be drafted properly in the agreement, because getting it wrong can create disputes around final pay and process. This comes up frequently with payment in lieu of notice.

Annual Leave Direction (Don’t Assume You Can Force It)

Another issue that catches employers off guard is annual leave - especially when business is quiet or you’re closing over a period.

You generally can’t just tell an employee to take annual leave tomorrow because it suits the roster. There are rules around when leave can be required and how much notice must be given, and it often depends on what’s in the agreement and the specific situation.

If annual leave planning is a recurring issue for your business, it’s worth understanding the rules around forcing annual leave and building a clear annual shutdown/leave framework into your documents and processes.

Key Takeaways: Choosing The Right Types Of Employment Contracts In NZ

• Employment contract types should match the real working arrangement, not just the label you prefer.
• Permanent full-time and part-time contracts are usually best for ongoing roles where you need consistency, and they should clearly define hours and roster expectations.
• Fixed-term contracts should only be used where there’s a genuine temporary reason, and the reason and end point must be clearly set out in writing.
• Casual contracts can suit fluctuating demand, but if shifts become regular and ongoing, the arrangement may look permanent (with different rights and obligations).
• Termination, notice, leave, and hours clauses are often where disputes start, so it’s worth getting these drafted properly for your business.
• Generic templates can create risk because they often don’t reflect how your workplace actually operates, which can undermine enforceability when problems arise.

If you’d like help choosing the right contract type or putting the right documents in place so your business is protected from day one, you can reach us at 0800 002 184 or team@sprintlaw.co.nz for a free, no-obligations chat.