Is It Illegal To Work Without A Written Employment Agreement In NZ?

If you’re hiring your first team member (or you’ve already got staff on board), it’s easy to think a “handshake deal” is enough - especially when you trust the person and you just want to get the work done.

But in New Zealand, employment law expects you to do more than rely on good intentions. Having a written employment agreement isn’t just a nice-to-have; it’s a key part of running a compliant business and protecting your business from avoidable disputes.

So, is it actually illegal to work without a written employment agreement in NZ? What happens if you don’t have one? And what should you do if you’ve already started employment and the paperwork hasn’t caught up yet?

Let’s walk through it in plain English.

Is A Written Employment Agreement Legally Required In New Zealand?

In most cases, yes - New Zealand law expects employees to be employed under a written employment agreement, and it places clear obligations on employers to provide one.

Under the Employment Relations Act 2000, employers generally must provide a written agreement containing required terms, and give employees a real opportunity to consider it (including advising them they can seek independent advice). This sits within the wider “good faith” framework in NZ employment law - which basically means you can’t keep important employment terms vague or hidden, and you need to deal fairly and transparently.

Importantly, the “illegality” issue is mainly about the employer not meeting their obligations to provide an agreement and required information - rather than an employee doing something unlawful by turning up to work without a signed contract.

What This Means In Practice For Employers

From a practical small business perspective, the takeaway is simple:

• You should have a written employment agreement for every employee - full-time, part-time, and fixed-term.
• You should provide the agreement before employment starts (or at least as early as possible), and give the employee a real opportunity to review it.
• You should encourage the employee to get independent advice before signing (this is a common best practice, and it helps avoid arguments later about whether they understood the terms).

If you don’t do this, you can open your business up to legal risk - even if the employee was happy to start work without paperwork.

Does Employment Still Exist Without A Signed Agreement?

Yes. This point trips up a lot of business owners.

If someone is doing work for you as an employee, and you’re directing their work and paying wages/salary, an employment relationship can exist even if there’s no signed written employment agreement in place.

In other words, the absence of a written agreement doesn’t cancel out your obligations. It just means the terms are less clear - and that’s usually where disputes start.

What Should A Written Employment Agreement Cover?

A strong written employment agreement does two jobs at once:

• It helps you meet your legal obligations as an employer.
• It sets clear expectations so both sides know how the working relationship will run day-to-day.

While the exact terms depend on your business and the role, most employment agreements should clearly deal with the basics below.

Key Terms Most Employers Should Include

• Job title and duties (so there’s no confusion about what the role involves).
• Hours of work (including any flexibility and overtime expectations).
• Pay (wages/salary, when it’s paid, and any allowances or commission rules).
• Leave entitlements (sick leave, annual leave, public holiday rules - at least at the statutory minimums).
• Notice periods (for resignation and termination).
• Trial period or probation (if used) (these need to be handled carefully to be effective - and some trial periods have strict eligibility and “in writing before work starts” requirements).
• Confidentiality and IP (especially if staff will handle customer lists, pricing, internal processes, or create content).
• Health and safety expectations (and your procedures).
• Dispute resolution steps (so you’re not improvising if conflict happens).

Many businesses also include policies alongside the agreement (or incorporate them by reference). If you’re building out your HR foundation, a clear Workplace Policy can help you manage conduct, performance, leave processes, and everyday expectations consistently.

Be Careful With “One-Size-Fits-All” Templates

It’s tempting to download a generic contract and call it done - but employment agreements aren’t just admin paperwork.

If your contract doesn’t match how your business actually operates (for example, your hours, availability requirements, commission structures, or confidentiality risks), you can end up with:

• terms that are unenforceable or unclear,
• clauses that don’t fit NZ law,
• process steps you don’t follow (which can undermine a termination later), and
• a document that creates confusion rather than certainty.

If you want something tailored to your business and compliant from day one, it’s often worth putting a proper Employment Contract in place early.

What Are The Risks Of Not Having A Written Employment Agreement?

Even if things are going well right now, not having a written employment agreement can create real commercial risk - and it often shows up at the worst possible time (when you need to performance manage, change hours, restructure, or end employment).

1) “They Said / You Said” Disputes

Without a written agreement, you’ll often be forced to rely on:

• verbal conversations,
• texts/emails,
• rosters and payslips, and
• what each person remembers.

This is where misunderstandings turn into formal disputes. A written agreement gives you a single reference point.

2) Harder Terminations And Higher Personal Grievance Risk

In NZ, dismissals (and disciplinary action generally) must be substantively justified and procedurally fair. When you don’t have written terms covering notice, misconduct definitions, investigation steps, or performance expectations, it becomes much harder to show you acted fairly and consistently.

If you’re dealing with underperformance, misconduct, or a breakdown in the relationship, getting advice early can save you time and cost. It’s often worth speaking with an Employment Lawyer before you take steps that can’t be undone.

3) Confusion Around Hours, Availability, And Pay

Common small business pain points include:

• disagreements about minimum hours,
• expectations to cover shifts at short notice,
• overtime assumptions,
• what happens when work is quiet, and
• how commission or bonuses are calculated.

A clear written agreement won’t prevent every issue - but it makes it much easier to manage issues quickly and fairly.

4) Greater Exposure When You Need To Change Roles Or Restructure

Businesses change. You might need to alter responsibilities, hours, reporting lines, or even restructure due to economic pressure.

If your agreements are unclear, you’ll have less certainty about what you can change (and how), and you’ll be more likely to run into disputes about whether a change is lawful.

This is particularly important if you’re considering reduced hours, role changes, or redundancy - these are areas where process matters as much as the outcome.

If Someone Has Already Started Work, What Should You Do Now?

If an employee has started and you don’t yet have a written employment agreement in place, don’t panic - but don’t leave it sitting there either.

Here’s a practical, business-friendly approach.

1) Put A Written Agreement In Place ASAP

The best time to issue the agreement was before day one. The second-best time is now.

Send the agreement to the employee and clearly explain:

• you’re formalising the arrangement so expectations are clear,
• they can take time to review it, and
• they can seek independent advice before signing.

Avoid framing this as “sign immediately or else” - that can create trust issues and may undermine good faith expectations.

2) Make Sure The Terms Match Reality

This is where businesses get stuck: the agreement says one thing, but the role works differently day-to-day.

Before you send anything, check that it accurately reflects:

• the actual hours worked (including any regular overtime),
• how rosters are set,
• break expectations,
• how pay is calculated, and
• what flexibility you genuinely need from the role.

If you need to introduce new expectations (for example, new weekend work requirements), you may need a proper variation process rather than quietly “updating the contract”.

3) Sort Out Contractor vs Employee Risk Early

Sometimes the “no written agreement” issue is really a classification issue - for example, you’ve brought someone on as a contractor, but they work like an employee.

This can become a major risk if it leads to disputes about leave entitlements, PAYE, and minimum employment rights.

If you are genuinely engaging a contractor, you’ll want a proper Contractors Agreement (and you’ll want the working relationship to match it in practice).

Common Small Business Scenarios (And How A Written Employment Agreement Helps)

Most business owners don’t skip employment paperwork because they’re trying to do the wrong thing - it’s usually because they’re busy, hiring is happening quickly, or the role starts as “just a few shifts” and then grows.

Here are a few common scenarios where a written employment agreement can save you a lot of stress later.

You’re Hiring Casual Or Part-Time Staff

Even if someone is only working a few shifts a week, you still want the essentials in writing: pay rate, how shifts are offered, cancellation rules, availability, and what happens if work dries up.

This is especially important in hospitality, retail, and service businesses where rosters change week to week.

You Want To Protect Customer Relationships Or Confidential Information

If your employee has access to customer lists, pricing, suppliers, marketing plans, or internal processes, your agreement should cover confidentiality clearly.

Some roles also justify post-employment protections (like restraint clauses). These need to be drafted carefully to be enforceable and reasonable, but when used properly they can be part of a sensible risk strategy. Depending on the role, a Non-compete agreement (or tailored restraints within the employment agreement) may be worth considering.

You’re Growing Quickly And Need Consistency Across The Team

As you hire more people, inconsistency becomes a hidden cost. If everyone has different terms, different notice periods, or different policy expectations, managing the business becomes harder than it needs to be.

Having a consistent written employment agreement framework (tailored per role) helps you:

• onboard faster,
• reduce disputes,
• set performance expectations clearly, and
• treat people consistently (which matters legally and culturally).

You Need To Manage Performance Or Misconduct

When issues arise, you’ll want two things:

• a fair process, and
• clear written expectations to point to.

That’s why many businesses align their agreements with a documented performance and discipline process. If you’re building this out, having a clear Performance Management Process can help you handle issues consistently and reduce the risk of a personal grievance.

Key Takeaways

• A written employment agreement is a key legal and practical requirement for NZ employers, and you should aim to have one in place before an employee starts work.
• Even without a signed agreement, an employment relationship can still exist - which means you can still be responsible for minimum entitlements and fair process requirements.
• A well-drafted written agreement reduces “they said/you said” disputes and helps you manage hours, pay, confidentiality, performance, and termination more confidently.
• If an employee has already started, it’s still worth putting a written agreement in place as soon as possible - but make sure it matches how the role actually works.
• Be careful about contractor arrangements; if someone is really an employee, a contractor contract won’t “override” the reality of the working relationship.
• Strong employment documents and policies help you stay compliant, protect your business, and build a healthy team culture as you grow.

This article is general information only and isn’t legal advice. Employment obligations can vary depending on the role and circumstances.

If you’d like help putting the right written employment agreement in place (or reviewing what you’re currently using), reach us at 0800 002 184 or team@sprintlaw.co.nz for a free, no-obligations chat.