New Zealand law requires that a dismissal be justified, and that means meeting two separate tests.
The objective test
Section 103A of the Employment Relations Act asks: would a reasonable employer have made the same decision?
That is objective. It does not turn on what your particular employer believed was reasonable.
Substantive fairness
There must be a valid reason — performance, behaviour, or genuine redundancy.
Procedural fairness
The employer must follow a fair process. That means, among other things, that you should be given a chance to respond to any accusations before a final decision is made.
A dismissal with a genuine reason but no opportunity to respond can still be unjustified.
The redundancy process
A fair redundancy typically involves:
- Consultation with affected employees
- Fair and objective selection criteria where multiple roles are affected
- Exploring redeployment — checking internal vacancies you could fill, even at lower pay if reasonable
- Confirming the decision in writing, with notice and support details
Skipping steps is grounds for a personal grievance.