A simple option, most countries already have land tax. Just make this proportional and federal. And by proportional I mean like income tax, so the first $1m is

A simple option, most countries already have land tax. Just make this proportional and federal. And by proportional I mean like income tax, so the first $1m is 0%, $1m - $3m is 1%, etc Not sure the best numbers but should be something were most people dont pay, even can have an investment property to cover need for a rental market, but if you have significant holdings it kicks in, and people with residential empires should basically be untenable unless it is short term holding to renovate etc. Also could apply top rates to residential property with corporate or foreign ownership so residential is for people to live in.