If you deferred VAT last year due to Coronavirus, payment is now due by 31 March 2021. HMRC, have set up a new VAT Deferral Scheme and you can transfer any deferred VAT to the new scheme. You can pay in up to 11 monthly instalments. Full details of the scheme can be found at https://www.gov.uk/guidance/deferral-of-vat-payments-due-to-coronavirus-covid-19