It depends on which city you are going to live in. If you want to live in Auckland, be prepared to be shocked by the cost of rents and houses. In Auckland, you really need to be in a profession of some sort (teachers included) taking home at least $700 per week after tax to live a comfortable lifestyle.n Auckland, you really need to be in a profession of some sort (teachers included) taking home at least $700 per week after tax to live a comfortable lifestyle.