Show Cause Letters in NZ: Disciplinary Process for Employers

When an issue comes up with an employee, it can be tempting to move straight to a warning or (in serious cases) dismissal. But in New Zealand, employers generally need to follow a fair process before making a decision that could negatively affect someone’s employment.

One common way employers do this is by issuing a show cause letter. Used properly, it’s a practical way to clearly explain what’s happened, what outcome you’re considering, and to give the employee a genuine opportunity to respond before you decide what to do next.

In this guide, we’ll break down what a show cause letter is, when you should (and shouldn’t) use one, what to include, and how to avoid common process mistakes that can lead to personal grievances.

What Is A Show Cause Letter (And Why Do Employers Use One)?

A show cause letter (sometimes called an “invitation to respond” letter) is a formal letter you give an employee when you’re considering a serious outcome - often disciplinary action up to and including dismissal - and you want the employee to “show cause” why that outcome shouldn’t happen.

In plain terms, it’s your way of saying:

• “This is what we believe has occurred.”
• “This is why it’s a problem.”
• “This is what we’re considering doing as a result.”
• “Before we decide, we want to hear your side.”

For small business owners, this matters because employment issues can escalate quickly. A well-structured show cause letter helps you:

• Set expectations and document what the concern is.
• Run a fair process (a key requirement under NZ employment law).
• Reduce misunderstandings by putting the allegations and potential outcomes in writing.
• Create a paper trail showing you acted reasonably and gave the employee a chance to respond.

Show cause letters are often used as part of a disciplinary process under the Employment Relations Act 2000, which requires employers to act as a “fair and reasonable employer” would in all the circumstances.

Important: A show cause letter is not the decision. It’s the step before the decision.

When Should You Use A Show Cause Letter In New Zealand?

You don’t need a show cause letter for every issue. For minor concerns, coaching, training, or an informal chat may be enough. But a show cause letter is often appropriate when the situation is serious enough that you’re considering:

• issuing a final warning
• termination for misconduct or performance reasons
• temporarily removing an employee from duties while you investigate (for example, by agreed leave or a lawful suspension where appropriate)

Common Scenarios Where A Show Cause Letter Might Be Suitable

• Serious misconduct or misconduct (e.g. theft, violence, intoxication at work, serious breach of safety rules, serious insubordination).
• Repeated issues after earlier warnings (e.g. ongoing lateness, repeated policy breaches).
• Significant performance concerns where termination is being considered and you have been through performance management steps.
• Breakdown of trust and confidence (this is complex and high risk - you’ll want tailored advice).

Many employment issues come down to what your agreement and policies say. If your current documents are outdated (or you’re using something informal), it’s worth tightening up your Employment Contract and handbook so your processes are consistent and easier to follow.

When A Show Cause Letter Might Be The Wrong Tool

A show cause letter isn’t a shortcut to dismissal. You should be cautious if:

• you haven’t investigated the issue properly yet
• you’re still unclear on what actually happened
• the matter is really a performance management issue and you haven’t provided support, feedback, time, and a fair opportunity to improve
• you’re dealing with health issues, stress, or disability factors that might need a more supportive process (and potentially medical input)

If you’re managing performance concerns, it’s often better to follow a structured process (with clear expectations and documentation) before you get to a show cause stage. This is exactly where a performance management process can help you stay consistent and legally safer.

What A Good Show Cause Letter Should Include (A Practical Checklist)

A show cause letter should be clear, factual, and balanced. The goal isn’t to “win” - it’s to run a fair process and make a defensible decision.

Here’s what a strong show cause letter usually includes.

1. A Clear Summary Of The Allegations Or Concerns

Be specific. Include:

• the date(s) and time(s) of the incident(s)
• what happened (in chronological order if helpful)
• who was involved and any witnesses (if relevant)
• what policies, procedures, or employment obligations you believe were breached

Avoid loaded language (e.g. “you clearly lied”) unless you can prove it and it’s appropriate. Stick to what you know.

2. The Evidence You’re Relying On

Employees should generally have a reasonable opportunity to understand and respond to the information you’re relying on. This might include:

• witness statements
• timesheets or attendance records
• emails, messages, or system logs
• CCTV footage (where lawful and relevant)

If you have workplace monitoring in place, make sure you’ve handled it carefully. Monitoring and surveillance can raise privacy issues, and you should ensure your approach aligns with the Privacy Act 2020 and your internal policies (especially around notice, purpose, and access).

3. The Potential Consequences (Including If Dismissal Is Being Considered)

This is one of the most important parts of a show cause letter.

You should clearly state the outcome you are considering, for example:

• no further action
• a formal warning
• a final warning
• termination of employment (dismissal)

If dismissal is on the table, say so plainly. If you don’t, and you later dismiss, the employee may argue they weren’t properly warned about the seriousness of the situation.

4. An Invitation To A Meeting (And The Right To Bring Support)

A show cause letter will usually invite the employee to a disciplinary meeting and explain that they can bring a support person or representative.

From a small business perspective, this is also where you set the tone: respectful, open to hearing their response, and committed to a fair process.

5. A Genuine Opportunity To Respond (With Reasonable Time)

Give the employee a reasonable timeframe to consider the allegations, review the information, and prepare their response. What is “reasonable” depends on the situation (and how much information you’re providing), but same-day deadlines can be risky unless the circumstances truly justify urgency.

6. Keep The Door Open: No Pre-Determination

Your wording matters. A show cause letter should not read like you’ve already decided the outcome.

Try language like:

• “We are considering…”
• “No decision has been made…”
• “We invite you to respond before we decide next steps…”

This can feel formal, but it’s a key part of demonstrating fairness.

How The Show Cause Process Usually Works (Step-By-Step)

A show cause letter is one part of a broader disciplinary process. While every workplace is different, here’s a common (and generally safer) sequence for NZ employers.

Step 1: Identify The Issue And Pause

When something happens, avoid making on-the-spot disciplinary decisions in the heat of the moment. Your first step is to understand the facts and manage any immediate risk (for example, health and safety concerns under the Health and Safety at Work Act 2015).

Step 2: Investigate Fairly

Gather information, speak to witnesses where relevant, and keep notes. If you’re relying on documents or CCTV, confirm you’re entitled to use them and that they’re accurate.

Step 3: Send The Show Cause Letter

Once you have a reasonable basis for concerns and you’re considering a serious outcome, you issue the show cause letter and invite the employee to a meeting.

Step 4: Hold The Meeting And Hear The Employee Out

In the meeting, explain the concerns and give the employee a real opportunity to respond. If new information comes up, you may need to investigate further before deciding.

Step 5: Consider The Response (Genuinely)

This is where many employers trip up. You need to actually consider what the employee says. That might include mitigating factors like:

• misunderstandings or unclear instructions
• training gaps
• health or personal circumstances (handled sensitively)
• inconsistent treatment compared to other employees

Step 6: Make A Decision And Confirm It In Writing

After considering everything, you confirm the outcome in writing (for example, a warning letter or termination letter) and explain any next steps (such as expectations, review periods, or the right to raise concerns internally).

If you’re at the point of potential termination, it’s worth getting advice on your employee termination documents and how the process should be run in your specific situation.

Common Mistakes Employers Make With Show Cause Letters (And How To Avoid Them)

Show cause letters are a great tool - but only if they’re used properly. Here are some of the most common pitfalls we see (especially in small businesses where you’re juggling everything at once).

1. Skipping The Investigation

Issuing a show cause letter without a reasonable investigation can look like you’re acting on assumptions. If the facts later change, it can undermine the whole process.

2. Treating The Show Cause Letter As The Dismissal Letter

If your show cause letter reads like the decision is already made, you risk a claim that the process was unfair or predetermined.

3. Not Giving Enough Detail

Vague allegations (“your attitude has been poor”) aren’t helpful. You’ll usually need clear examples and specific incidents so the employee can respond meaningfully.

4. Not Giving Reasonable Time Or Support

Rushing the process or discouraging a support person can make the process look unfair, even if the underlying issue is real.

5. Inconsistent Disciplinary Standards

If you treat one employee harshly for something others have been allowed to do, you increase risk. This is why clear workplace policies (and applying them consistently) are so important.

6. Forgetting Other Legal Risks (Discrimination, Privacy, Health And Safety)

Employment issues don’t exist in a vacuum. For example:

• Disciplinary action connected to a protected ground (like disability, religion, family status) can create risk under the Human Rights Act 1993.
• Medical information and wellbeing concerns must be handled carefully, with privacy in mind.
• If the issue involved safety, you still need to meet your obligations under the Health and Safety at Work Act 2015.

When you’re unsure, it’s usually cheaper (and less stressful) to get advice early from an Employment Lawyer than to try to fix a process after it’s gone wrong.

Key Takeaways

• A show cause letter is a formal step where you outline concerns and invite an employee to respond before you decide on disciplinary action (including possible dismissal).
• In New Zealand, a fair process is critical - the show cause letter should clearly state the allegations, the evidence, and the potential outcomes, and it must not read like you’ve already made up your mind.
• You should generally investigate first, then issue the show cause letter, then hold a meeting, consider the response genuinely, and confirm the final decision in writing.
• Common employer mistakes include skipping investigation steps, being vague, not allowing reasonable time to respond, and using wording that suggests pre-determination.
• Employment issues often overlap with other obligations (privacy, health and safety, and discrimination), so it’s worth getting tailored advice for higher-risk situations.

If you’d like help drafting or reviewing a show cause letter, or you want support running a fair disciplinary process from start to finish, you can reach us at 0800 002 184 or team@sprintlaw.co.nz for a free, no-obligations chat.