HMRC has announced changes to the UK's VAT rules relating to cost sharing groups (CSGs) following recent judgments from the Court of Justice of the European Union. The changes mean the VAT exemption for CSGs will now only apply to entities providing certain public interest services listed in the VAT Directive, such as postal, education, and health services. Banking and insurance entities are no longer eligible. HMRC will also restrict CSG membership to UK entities and require recharges to members be made only at cost. Entities correctly applying previous guidance have until the end of May 2018 to comply with the new rules.