The taxpayer sold double glazing, supported by an insured guarantee, for which a charge was made. The additional charge was exempt, but it was contended that the contract should have stated the amount pursuant to Note 5. Held: The contract gave the rate of charge at 10 per cent. The Act allowed the commisioners to … Continue reading C R Smith Glaziers (Dunfermline) Limited v Commissioners of Customs and Excise: HL 20 Feb 2003