From 1 April 2019, all businesses registered for VAT in the UK (resident and non-resident) with an annual turnover above £85,000 must file their VAT return electronically using a software compatible with the Making Tax Digital system.
From 1 April 2022, all businesses identified for VAT purposes in the UK will be required to file their VAT returns electronically using a software compatible with the Making Tax Digital system, irrespective of their turnover.
Source: HM Revenue & Customs