I am presuming that since the instigation of the new Construction Industry Scheme on 6th April 2007, all deductions made by Contractors at the standard rate should have been made at 20% on the amount owed to the Sub Contractor after deductions of the usual materials, equipment hire etc, providing that the Subbie has been verified, if the Subbie hasn't been verified then the deduction should have been at the higher rate of 30%. I am also presuming that those rates were prevailing for the whole of the 2007-08 tax year, and are still the current rates today.
Are my presumptions correct? I ask because a client has just presented me with his records in order to complete his 2007-08 tax return and all of his deductions (he is verified) have been made at 18%, which I think is incorrect.