They are taxed, but I think they could be taxed more and better. Specifically, I — and many others, including many an economist — think we ought to be implementing a land value tax.

Why LVT and not just leave it to income taxes? In short, LVT is just a really good tax. Progressive, incentivizes efficient use of land, discourages speculation and rent-seeking, economically efficient, and hard to evade. Plus, critically regarding landlords, land value taxes can’t be passed on to tenants, both in economic theory and in observed practice.

In fact, it’s so well-regarded a tax that it’s been referred to as the “perfect tax”, and is supported by economists of all ideological stripes, from free-market libertarians like Milton Friedman — who famously described it as the “least bad tax” — to social democrats and Keynesians like Joseph Stiglitz. It’s simply a really good policy that I don’t think is talked about nearly enough.

Even a quite milquetoast land value tax, such as in the Australian Capital Territory, has been shown to reduce speculation and improve affordability:

It reveals that much of the anticipated future tax obligations appear to have been already capitalised into lower land prices. Additionally, the tax transition may have also deterred speculative buyers from the housing market, adding even further to the recent pattern of low and stable property prices in the Territory. Because of the price effect of the land tax, a typical new home buyer in the Territory will save between $1,000 and $2,200 per year on mortgage repayments.