The government advises tourists that tipping in New Zealand is not obligatory – even in restaurants and bars. However, tipping for good service or kindness is at the discretion of the visitor.
It is not part of the culture, indeed, in a recent poll, locals stated they were happy to tip for exceptional service, but 90 percent were against tipping becoming the norm. 84 percent thought international visitors should not be encouraged to do it either, because good service should simply be part of the job.
People may feel uncomfortable to be offered tips, but the more ‘touristy’ places will be accustomed to receiving them.
For exceptional service, tip 10 percent. In taxis, leave your change. In hotels, perhaps $1-2 for carrying bags and $1-5 for room service.