VATREC15110 | Other Invoicing arrangements: Self-billing: Transfer of a going concern
From HM Revenue & Customs · VAT Traders’ Records Manual
Where a business is transferred as a going concern, any self billing arrangements in place cease to have effect from the date of transfer. If the new owners of the business wish to use self-billing they will need to agree this with their customers/suppliers. New self-billing agreements should be drawn up, formally establishing the new arrangement.