You do you. Everyone runs their books differently.
You're trying to say that any FBT should be payed on points/bonuses earned on any business expenses. So why do all these payment gates like pay.com.au exist then to pay your BAS and ATO bills.
Obviously there is a benefit out of it which is allowed.
They are flying very close to the line. Strictly speaking, pay.com.au fees should not be tax deducted unless you are also paying FBT on the points (or the points are being used to offset business travel expenses).
I've got no doubt most people are dodging the tax rules here. Personally I'd be surprised if Pay.com.au (or any other platform that is essentially selling frequent flyer points) survived serious scrutiny from the ATO. The whole value prop is tax arbitrage. Pure tax leakage with no economic benefit. There's an angle from which you could say they are marketing a tax avoidance scheme.
