Microsoft 365 Copilot for HR under the Employment Relations Act 2000

The Act judges what the employer did, not what the software drafted

Every employment decision in New Zealand is measured against good faith and fair process. Section 4 of the Employment Relations Act 2000 requires the parties to an employment relationship to deal with each other in good faith¹. When a dismissal or other action is challenged, section 103A asks whether what the employer did, and how it did it, were what a fair and reasonable employer could have done in all the circumstances⁴.

That test has practical parts that matter for anyone using AI. The Authority looks at whether the employer, having regard to its resources, sufficiently investigated the allegations, raised its concerns with the employee, gave a reasonable opportunity to respond and genuinely considered the explanation⁴. A letter drafted by Copilot can be perfectly worded and still fail if the manager did not actually do those things. The opposite also holds: since February 2026, defects in process that did not result in the employee being treated unfairly cannot by themselves make a decision unjustified⁴.

So the right use of Copilot in HR is narrow and useful. It drafts, summarises and checks documents. A person investigates, listens, weighs and decides.

Employment agreements: drafting and the bargaining steps

Section 63A sets out what an employer must do when bargaining for an individual employment agreement, including when proposing a trial or fixed-term arrangement. The employer must give the employee a copy of the intended agreement, advise them they are entitled to seek independent advice, give a reasonable opportunity to get that advice, and consider and respond to any issues they raise². Failing to do so can attract a penalty, although it does not void the agreement².

Copilot helps most with consistency. Keep one approved agreement template in a restricted SharePoint library and use Copilot in Word to adapt it for a role: 'Using /Approved IEA template, prepare a draft for a full-time warehouse supervisor in Hamilton, based on /Warehouse supervisor job description. Do not change any clause in the template except the schedule. List every clause where the job description suggests something the template does not cover.' The last instruction is what turns Copilot from a drafter into a checker.

Then let Copilot write the covering email that meets section 63A. Ask it to state, in plain English, that this is the intended agreement, that the candidate can seek independent advice, and how long they have to come back to you. Read it before sending, and file the sent email with the agreement.

• Never let Copilot invent a clause; changes to the template go through whoever owns it, ideally with advice.
• Ask Copilot to compare a signed agreement with the current template and list differences before any renewal or variation.
• Keep the signed copy where you can produce it quickly; if the employee asks, the Employment Relations Act 2000 requires you to provide a copy as soon as is reasonably practicable¹⁴.

Records the Act expects you to keep

An employer must keep a copy of each individual employment agreement, and Employment New Zealand reminds employers to keep wage and time records and holiday and leave records for 6 years, including for staff who have left⁵. Section 130 sets out what the wages and time record must contain³.

Copilot can help you find gaps. With a licence and the right access, a payroll administrator can ask Copilot in Excel to check a leave register for missing start dates or unrecorded public holidays. What Copilot should not do is become a second, uncontrolled store of staff information. Prompts and responses are kept in the user's Copilot activity history, which admins can search and retain using Content search and Microsoft Purview⁷. Decide who in the business may use Copilot on staff records, and keep that group small. Microsoft now calls the product Microsoft Copilot rather than Microsoft 365 Copilot, so its admin and privacy pages may use either name⁷.

Disciplinary processes: where Copilot helps and where it must stop

Employment New Zealand describes a sequence for a disciplinary matter: preliminary inquiries, a letter inviting the employee to a meeting with reasonable notice and a reminder that they can bring a representative or support person, the meeting itself, a preliminary decision put to the employee in writing, a chance to respond to it, and only then a final decision⁶. Each step generates a document, and each document has to reflect what actually happened.

Copilot is good at the letters. A manager at a mid-sized Dunedin food manufacturer can prompt: 'Using /Disciplinary invite template, draft a letter to the employee about the two forklift incidents described in /Incident reports June. State each allegation separately and factually, attach the reports, give the meeting time and place, and remind them they can bring a support person or representative. Do not describe any incident as misconduct or serious misconduct.' Copilot does not decide the label; the manager does, later, after hearing the employee.

Copilot must not do the weighing. Asking it to decide whether an explanation is credible, whether conduct is serious misconduct, or what the outcome should be, puts the employer's judgement into a tool that was not in the meeting. It also creates a record that an employee's representative may later ask to see. The Privacy Commissioner expects a person to review AI output before an agency acts on it⁹, and in an employment decision that review has to be real consideration, not a signature on Copilot's view.

• Good uses: invitation letters, a neutral chronology from documents you supply, a checklist of process steps, the outcome letter after the decision is made.
• Poor uses: rating credibility, recommending a sanction, comparing this employee with others, or summarising what someone 'meant'.
• Before any meeting, ask Copilot to list every document the employee should have seen, then check they have all been provided.

Teams meetings, transcripts and employee meetings

Copilot in Teams can produce a recap and answer questions about a meeting. Organisers can set Copilot to work only during the meeting, and in that mode the speech-to-text data is not saved after the meeting, although your Microsoft Purview retention policies may still keep Copilot prompts and responses⁸. To use Copilot after the meeting, transcription has to be running⁸.

For disciplinary, performance or personal grievance meetings, our advice is to agree in advance whether the meeting will be transcribed, tell the employee and their representative, and offer them the transcript. A transcript is personal information about the employee. Under the Privacy Act 2020, an agency must respond to an access request as soon as reasonably practicable and no later than 20 working days after receiving it¹⁰. If you would be uncomfortable handing over the transcript and Copilot's summary of it, do not create them.

Where a meeting is not transcribed, have a person take notes and use Copilot only to tidy those notes into your usual format. Then send them to the employee for comment. That is slower than an automatic recap, but it is defensible.

Restructures and the duty to share information

Section 4(1A)(c) requires an employer proposing a decision likely to have an adverse effect on the continuation of someone's employment to give the affected employees access to relevant information and an opportunity to comment before the decision is made¹. Confidential information can be withheld only where there is good reason, and not simply because a document also contains confidential material¹.

Copilot can help draft a clear proposal document from your business case, and it can help sort feedback by theme once consultation closes. Two cautions apply. First, if Copilot materially shaped the analysis behind the proposal, the inputs and outputs may be relevant information that affected staff are entitled to see; keep them in the proposal file. Second, genuine consideration of feedback means a decision-maker reads it. Ask Copilot to group responses, then read every response yourself before the final decision.

A practical prompt for a Napier horticulture business restructuring its packhouse office: 'Using /Packhouse office review and /Current org chart, draft a consultation proposal for affected staff. Explain the business reasons in plain English, show current and proposed roles side by side, and set out how staff can give feedback. Do not name any individual or predict who will be selected.'

Recent changes to check before you prompt

Employment law moves, and Copilot's general knowledge may lag behind it. The Employment Relations Amendment Act 2026 received assent in February 2026 and introduced, among other things, a remuneration threshold above which employees on new agreements cannot raise an unjustified dismissal grievance unless the parties agree otherwise in writing¹¹. The threshold is adjusted annually from 1 July 2027, and employees on agreements already in place have 12 months before it applies to them, so check the current figure on employment.govt.nz¹¹. If you use Copilot Chat with web grounding to research a point like this, ask it to cite official sources, then open legislation.govt.nz or employment.govt.nz and read the provision yourself.

Better still, build a small Copilot Notebook or SharePoint library of the guidance you rely on, such as Employment New Zealand pages and your own policies, and point Copilot at that rather than the open web. Update it when the law changes.

A short policy for HR use of Copilot

New Zealand government guidance for the public service asks agencies to keep accountable people involved in the use of generative AI and its outputs¹². MBIE's guidance for businesses lists workplace culture and privacy among the risks a firm should consider before using AI¹³. A one-page rule set, agreed by the owner and whoever does HR, covers most of what a firm of this size needs.

• Only named people may use Copilot on staff records, and those records sit in restricted SharePoint libraries.
• Copilot drafts documents; it does not assess credibility, recommend outcomes or rank employees.
• Every employment letter is read in full and signed by the decision-maker before it is sent.
• Meetings with employees are transcribed only with notice, and the employee is offered the transcript.
• Legal points found through Copilot are checked against legislation.govt.nz or employment.govt.nz before use.
• Copilot inputs and outputs that influenced a decision are kept on the employee or proposal file.