Returning to NZ from Australia

[king1]

Hi Visor, sorry to hear about your troubles, covid has had a large impact on a lot of people.

You'll need a bank account first - looks like you can apply for these online

eg via Kiwibank details are here
https://www.kiwibank.co.nz/personal-bank...w-zealand/

and then this form is is to apply for an IRD number from overseas (need a bank account underway)
https://www.ird.govt.nz/-/media/project/...2-2018.pdf

It's a lot more daunting than it used to be mostly because of the anti money laundering checks

this should achieve what you need,
Hope it all goes well,