Skippydoodle

Single FHL help in partnership, trading for several years. Current turnover approx 80k per annum. Just planning ahead and want to keep an eye on the VAT threshold to make sure we register if we go over 90k. When looking at the 365 day rolling for calculation, which way do I look at it? I have had differing advice! Currently on our self assessment return we report the payment as being received from the guest on the day that their booking starts. I have been told we can look at the VAT rolling calculation on this same basis. But someone else has advised that for the VAT calc we should be looking at the date that the guest actually makes the payment to (either me directly or to the booking agent). Which is correct?