Do I need an interpreter for my visa in New Zealand?

Specific situation, specific analysis.

It depends on what kind of visa you apply for in New Zealand.

Different visas have different requirements.

Generally speaking, when applying for a New Zealand visa, if the information you provide is not in English, you need to provide the corresponding translation.

Of course, it also depends on the specific materials. Some financial documents, such as bank running water, can be translated.