British Passport with RRV - Can I Live in NZ
#16
Re: British Passport with RRV - Can I Live in NZ
There are concessions allowing spouses of Australian citizens to get it overseas, but these are still new (only in place since 2007) and it would be a lot simpler (and less risky) to get your citizenship onshore.
http://www.citizenship.gov.au/applying/spouses.htm
For the long term, you can become a New Zealand citizen after 5 years in NZ as an Australian citizen. You would keep Australian citizenship.