Unfair Treatment At Work in NZ

If you run a small business, you’ve probably had at least one tricky people situation where you’ve wondered: “Is this unfair treatment at work?” or “Could this turn into a legal issue?”

It’s a fair concern. Most employment disputes don’t start with a big dramatic event. They often start with small issues that build up over time - inconsistent decisions, poor communication, rushed processes, or policies that aren’t being applied properly.

The good news is that concerns about unfair treatment at work don’t have to be a guessing game. In New Zealand, the Employment Relations Act 2000 and related obligations set expectations around good faith, fair process, and lawful decision-making.

In this article, we’ll break down what unfair treatment at work can look like (from an employer’s perspective), what legal risks it creates, and the practical steps you can take to stay compliant and protect your business from day one.

Note: This article is general information for New Zealand businesses and isn’t legal advice. If you need help with a specific situation, get tailored advice.

What Counts As “Unfair Treatment At Work” In NZ?

“Unfair treatment at work” isn’t a single legal label on its own. Instead, it’s usually a plain-English way of describing conduct that may fall into one of several legal risk categories, such as:

Personal grievances (unjustified dismissal, unjustified disadvantage, discrimination, harassment)
Bullying and psychosocial risk issues (health and safety obligations)
Breaches of contract (not following the employment agreement)
Bad faith conduct (not acting in good faith during employment processes)

From an employer’s point of view, complaints about unfair treatment at work commonly arise when:

employees feel decisions are inconsistent or biased (even if you didn’t intend that)
a manager’s communication style is abrupt or unclear
policies exist but aren’t followed in practice
performance, disciplinary, or restructuring processes are rushed
the employee is surprised by an outcome they didn’t see coming

It’s worth remembering that what feels “unfair” to an employee won’t always be unlawful. But many legal problems come from avoidable process gaps - not from the core decision itself.

Unfair Treatment Vs “Unpopular Management Decisions”

Sometimes, you’ll need to make decisions that employees don’t like - changing rosters, enforcing policies, giving performance feedback, investigating misconduct, or restructuring.

These actions can be lawful and reasonable, as long as you manage them properly. In practice, the legal risk usually comes from:

not giving the employee a genuine chance to respond
not considering their feedback before deciding
treating comparable situations differently without a clear reason
failing to follow your own documented process

The Key Legal Obligations Employers Need To Get Right

If you want to reduce the risk of unfair treatment at work claims, your best starting point is understanding the core legal duties that sit behind most employment disputes.

1) Good Faith Obligations

In New Zealand, employment relationships are built on a duty of good faith. In a small business, that doesn’t mean you have to agree with your employee - but you do need to be honest, constructive, and communicative, especially when you’re making decisions that impact their job.

Good faith is particularly important during:

performance management
disciplinary processes
medical incapacity management
restructuring and redundancy consultation
negotiations about changes to duties, hours, or pay

2) Fair Process And Natural Justice

In practice, “fairness” at work often comes down to procedural fairness. Even if you have valid concerns about conduct or performance, the outcome can be challenged if your process is flawed.

A fair process commonly includes:

clearly explaining the issue (with examples, dates, evidence where relevant)
giving the employee time to consider and respond
allowing a support person or representative in formal meetings
genuinely considering their explanation before deciding
documenting what you did and why

Having a clear Employment Contract helps, because it sets expectations around processes, standards, and policies from the start.

3) Health And Safety Duties (Including Psychological Safety)

Unfair treatment at work complaints can overlap with workplace bullying, harassment, workload issues, or stress-related concerns.

Under the Health and Safety at Work Act 2015, you must take reasonably practicable steps to ensure the health and safety of workers. That includes psychological health and managing psychosocial hazards, where relevant.

This doesn’t mean you can’t manage performance or set deadlines. But it does mean you should pay attention to:

bullying allegations (even informal ones)
manager behaviour and culture
workload, fatigue and rostering practices
how conflicts are handled

4) Anti-Discrimination And Harassment Obligations

If an employee claims unfair treatment at work, one of the first questions to ask is whether there’s a discrimination risk. In NZ, discrimination and harassment issues can arise under the Human Rights Act 1993 (and also within personal grievance frameworks).

Common risk moments for employers include decisions around:

recruitment and interviewing
promotion and training opportunities
performance management and discipline
handling flexible work requests
termination decisions

Even where you believe your reasons are legitimate, you’ll want to ensure you can clearly explain them and show they’re based on role requirements and evidence - not assumptions.

Common Workplace Scenarios That Can Become “Unfair Treatment” Claims

There are some patterns we see again and again in small business employment disputes. If you can spot these early, you can usually prevent escalation.

Performance Management That Happens “Too Late” Or “All At Once”

One of the most common triggers for unfair treatment at work claims is a situation where:

performance concerns weren’t raised early (or weren’t documented), and
the employee is suddenly put on a formal process, or
the employee feels “ambushed” with a decision.

A practical way to reduce risk is to give regular feedback and keep short notes of key conversations. It doesn’t need to be intense - it just needs to be consistent and fair.

If you’re starting a formal process, it’s also smart to get advice on your approach. It’s much easier to prevent an issue than defend one.

Where you need structured support, a dedicated performance management process can help ensure the steps are sound and defensible.

Disciplinary Meetings Without Enough Notice Or Details

If you’re investigating misconduct (e.g. lateness, cash handling, behaviour issues, policy breaches), it’s tempting to move quickly - especially when your team is small and the issue is disrupting the workplace.

But moving fast can create unfair treatment risk if you don’t give the employee:

enough information to respond properly
reasonable time to prepare
a chance to have a support person

Even if you’re confident you’re “right”, a flawed process can undermine the outcome.

Roster Or Hours Changes That Aren’t Consulted On

Small businesses often need to adjust rosters due to seasonality, customer demand, or staff availability.

But “we need to change your hours” can quickly turn into an unfair treatment at work complaint if:

the employment agreement doesn’t allow for variation, or
the change is imposed without consultation, or
the change impacts income significantly, or
it looks like the change is being used as punishment.

If hours need to reduce for genuine business reasons, you’ll generally want a documented and fair consultation process. Depending on the circumstances, reducing staff hours can be high-risk if it isn’t handled carefully.

Workplace Monitoring Or Privacy Missteps

Unfair treatment at work complaints can also pop up when employees feel like they’re being watched or singled out.

Common examples include:

CCTV use without clear notice or policy
monitoring emails or device use without informing staff
using footage to “catch someone out” rather than address issues fairly

Monitoring can be lawful in some situations, but it’s often fact-specific. You’ll generally want a clear business reason, transparency with staff, and practices that align with privacy obligations (including any applicable Privacy Act requirements) and your internal policies. If you use cameras at work, make sure you’ve thought through the legal and practical issues around cameras in the workplace and have policies that staff can understand.

Leave, Sick Days, And “Mental Health Days”

Leave disputes are another common pathway into unfair treatment at work allegations. This can happen when employees feel they’re being treated differently for taking leave, or when managers respond inconsistently.

In NZ, sick leave is available for both physical and mental health reasons. How you handle sick leave requests, medical certificates, and communication during absences can matter a lot.

If you’re unsure how to manage a request for time off due to stress or burnout, it helps to understand the basics around a mental health day off work and how sick leave requirements generally apply.

How To Reduce The Risk Of Unfair Treatment At Work (Practical Steps)

Most employers don’t set out to treat anyone unfairly. The problems usually come from being time-poor, wearing too many hats, or relying on “how we’ve always done it”.

Here are practical steps that can meaningfully reduce your risk.

Use Clear, Updated Employment Documents

Your first layer of protection is having the right paperwork in place from the start. At a minimum, you should have:

a clear employment agreement for every employee (including job title, duties, hours, pay, termination clauses)
up-to-date policies (conduct, leave, device use, bullying/harassment, health and safety)
letter templates for formal processes (invitations, outcomes, warnings)

When documents are vague or inconsistent, it’s easier for employees to argue that they were treated unfairly - because expectations weren’t properly set.

Train Your Managers (Even If “Manager” Means You)

In many small businesses, the “HR department” is the owner, the operations manager, or the most senior staff member on shift.

That’s totally normal - but it also means you’ll want to make sure anyone managing people understands:

how to give feedback early and respectfully
when to escalate to a formal process
what not to say in disciplinary contexts
why consistency matters (even between different sites or teams)

Document Decisions And Keep A Paper Trail

You don’t need to turn every conversation into a legal file. But for higher-risk situations, it’s wise to keep records such as:

meeting invitations and agendas
notes of what was discussed
copies of evidence relied upon (where appropriate)
the employee’s written response
your reasoning for the final decision

Good documentation protects you if there’s later a dispute about “what happened”. It also tends to improve fairness, because it forces you to slow down and think clearly.

Apply Policies Consistently (Or Record Why You Didn’t)

One of the fastest ways to create an unfair treatment at work problem is inconsistency.

For example:

you warn one employee for lateness, but ignore it for another
you allow one person to work from home, but deny it to someone else without explanation
you approve leave for some staff but decline similar requests without a clear basis

This doesn’t mean every decision must be identical. It means you should be able to explain the difference in a reasonable way (role requirements, business needs, availability, performance history, and so on).

Get Advice Early (Before The Relationship Breaks Down)

Many disputes become expensive because the employer gets advice after the situation has already escalated.

If you have an employee issue and you’re thinking:

“This is getting tense,”
“I’m not sure what to do next,” or
“I don’t want to make it worse,”

That’s usually the right time to get support. A short legal consult early can help you plan a fair process and avoid missteps that later become the focus of a claim.

What To Do If An Employee Raises An “Unfair Treatment At Work” Complaint

If someone says they’re being treated unfairly at work, it can feel confronting - especially if you’ve been trying your best to run a good workplace.

But how you respond in the first 48 hours often sets the tone for what happens next.

Step 1: Don’t Dismiss It (Even If You Disagree)

You don’t have to accept the allegation, but you should treat it seriously.

A defensive reaction can escalate things quickly. A calm response helps keep the employee engaged in a constructive process.

Step 2: Ask For Specifics

“Unfair treatment” is broad. You’ll want to clarify:

What exactly do they believe happened?
When did it happen?
Who was involved?
What outcome are they seeking?

Sometimes you’ll find the issue is a misunderstanding or a communication gap that can be resolved quickly with a meeting and a plan.

Step 3: Follow A Fair Workplace Process

Depending on the nature of the complaint, you might need to:

investigate (especially for bullying/harassment allegations)
separate parties temporarily (if safety is a concern)
appoint an independent investigator (in more serious cases)
update rosters or reporting lines while you assess risk

Importantly, avoid retaliatory behaviour. Even subtle retaliation (e.g. cutting shifts immediately after a complaint) can create additional legal exposure.

Step 4: Consider Whether A Settlement Is Appropriate

Not every complaint needs to end in a formal legal process. Sometimes, the best commercial outcome is to negotiate an exit or resolve matters by agreement.

If you do reach a resolution, you may consider documenting it in a Deed of Settlement so both sides have certainty about what’s been agreed.

This is an area where tailored legal advice matters, because settlements can have flow-on legal effects and should be properly structured (including confidentiality, non-disparagement, payment terms, and how any claims will be addressed or withdrawn, where applicable).

Key Takeaways

“Unfair treatment at work” is often a sign of legal risk areas like personal grievances, discrimination, bullying/harassment issues, or breaches of process.
In NZ, fair process and good faith matter just as much as the underlying reason for your decision, particularly for performance management, discipline, restructuring, and termination.
Common triggers for unfair treatment claims include rushed disciplinary action, inconsistent policy enforcement, sudden performance processes, and imposed changes to hours or duties.
You can reduce risk by setting expectations early with a clear Employment Contract, applying policies consistently, documenting decisions, and training managers.
If an employee raises an unfair treatment complaint, respond calmly, clarify specifics, follow a fair investigation/response process, and get advice early before the situation escalates.
Where a dispute needs a clean resolution, documenting terms in a Deed of Settlement can help protect your business and provide certainty.

If you’d like help managing an employee complaint, reviewing your processes, or updating your employment documents, you can reach us at 0800 002 184 or team@sprintlaw.co.nz for a free, no-obligations chat.

Unfair Treatment At Work In NZ: Employer Legal Obligations