I loaned my parents money to purchase a vehicle in December last year. As my mum was going to be the primary driver, it was registered in her name. It was agreed though that my dad would repay the loan at some point in the future when they dispose of their current property. This was obviously an informal agreement but I am concerned that SARS will see this as a "donation" rather than a loan. Is there anything I can do to prevent this from being viewed as a "donation" and having to pay donation tax? Is transferring ownership of the car to myself an option I should consider until loan is paid?