If you rent the property within five years of purchase as an owner occupier then you will be subject to a clawback of stamp duty (i.e. you'll owe the difference between what you paid - possibly 0% - and what an investor would have paid), you will not be entitled to owner occupier mortgage interest relief (although you will be able to offset mortgage interest against rental income) while the property is rented out, the rental income will be assessable for income tax (and the tenant will be obliged to withold some of this if you are out of the country), and some portion of the eventual resale gain will be assessable for CGT. You need to consider these issues just as carefully as the mortgage issues. If in doubt get independent, professional advice.