My client is a consultant and was vat registered as his annual turnover was over the threshold. Due to a downturn in business, he expected his turnover in the next 12 months (from 1 Nov 2017) to be around £50K and so deregistered for vat as from 31 October 2017. His sales in the next 12 months to 31 October 2018 amounted to 80K i.e. under the threshold. However i note that when reviewing say 12 months to 31 August 2018 and 30 September 2018, his sales in those 12 months were 87K and 86K respectively. (Over the threshold but these will include some sales both before and after deregistration).
As the sales for the 12 months after deregistration are under £83K, is this the only rule he needs to worry about and therefore does not yet have to re-register for vat? Obviously this then needs to be reviewed on a monthly basis going forward.