IP Stamp Duty V PPOR Stamp Duty

Hi All

To my knowledge here in Qld there is one rate of stamp duty if the property is going to be your PPOR and another rate (approx 1&half% more) if it is a IP.
Wanting to know if you purchase a property as a PPOR (so therefore PPOR stamp duty) but it has a tenant in it. Is there a time frame when you have to move into it by before the government would want their extra stamp duty?

D.B.