We can salary sacrifice through my work and are able to doa noavted lease but have chosen to do SS towards our mortgage. I would assume if you are doing it through your employer as part of your salary or salaray sacrafice that it would be considered a fringe benefit. Fringe benefits do affect FTB

My father has a novated lease and I know for him at the end of the lease he purchases the car and then sells it on making a decent profit. Obviously the profit has tax implications and would affect any centrelink payments