Also for those that don't know. I started a thread back in July 2016, where I proposed that a broad base capital gains tax be introduced. Including on the family home.
https://www.geekzone.co.nz/forums.asp?ForumId=48&TopicId=198862
So in effect, I was way ahead of the current government and the tax working group by proposing it back then. And yes, I still stand behind what I said in that thread. (I might propose some small technical changes though).
The intent of what I have been saying (both in this thread and my old thread). Is that yes, a broad CGT is needed. But it needs to be designed so it won't cause distortions to investment decisions or indirectly add extra costs elsewhere.