Originally Posted by
squawk
I can't remember if it applies to other retailers too - I suspect so, but am sure others could confirm.
My experience is that if the purchase tracks automatically, you tend to get Avios on the full (VAT-inclusive) price. However, if you have to retro-claim, you're more likely to be awarded Avios only on the net price.
It's also worth remembering that VAT is 20% of the net price, not 20% of the gross price. So a £120 purchase including VAT is £100 net + £20 VAT (not £96 net + £24 VAT).