IRD is currently consulting on FIF tax
If its something you have strong opinions on, which I know many people here do, be sure to read through the proposals and get your submissions in before the 27th of Jan.
https://www.taxpolicy.ird.govt.nz/consultation/2024/effect-fif-rules-immigration
They're mostly focused on migrants but the question of whether it should only apply to migrants is open. (see chapter 3)
Submissions can be made by email to [[email protected]](mailto:[email protected]) with “Amending the FIF rules for migrants” in the subject line (see chapter 1, page 6)