Former Prime Minister David Lange once called a capital gains tax something you introduce if you want to lose an election.
The idea was first mentioned in the 1960s, when Auckland's population was around half a million people, and it's only ever been talk since.
That's despite important organisations like the OECD, the Treasury, Reserve Bank and Tax Working Group saying it's time to stop talking and start doing.
So why is there no capital gains tax, particularly on our investors?
Gareth Morgan believes the politicians would never do something drastic which might help the housing crisis because they're all property investors themselves, as are their supporters.
Could this be the reason?
Story went to investigate.
Watch the video for the full Story report.