Owning a rental property can be a minefield, requiring good advice to maximise your investment returns. For example, ACC has decided that you should pay ACC on the income from your rental property, unless you use a rental agent!
It seems an unusual position, given that few people rely on rental income as their main source of income and would therefore need this replaced by income from ACC.
However, ACC has published a very detailed analysis of whether a property investor is self-employed and has actually exercised mental or physical effort.
Like it or not, many property investors are receiving ACC bills, retrospective for several years.