The document summarizes a court case in the UK regarding VAT rates on energy saving home improvements. The Court of Justice of the European Union ruled that the UK's application of a reduced VAT rate to energy saving installations and materials was contrary to EU law. While EU law allows reduced rates for certain social housing purposes, the court agreed with the European Commission that the UK's policy aimed at environmental rather than social objectives. As such, applying reduced rates to all housing went against the VAT Directive. The court also found the UK law defective for not limiting the reduced rate to installations where materials' value was not significant relative to installation costs. The UK will need to amend its law in response to this judgment.