Long story short: Have some relatives overseas. They have some money in their bank accounts earning 1.xx% pa interest. They are willing to lend to me at 3.99% pa interest charge. The relationship is close enough to not require the property as security and both understand the currency risks. Basically they will lend me in AUD. I repay interest to them in AUD and at maturity of 10 years, I pay them the outstanding principal back in AUD as of today's exchange rate. I keep the profit or loss. Is it a good deal ? For me it is just like borrowing from a local bank. Is there any ATO or government things to prevent me from doing this ?