IHTM03112 - What is recorded on Forms 400 and 401: name of transferor, date of birth, reference number
The name and date of birth of the transferor, together with the file reference number are shown on the barcode stuck to the top of the front cover of the file. Additional labels showing the reference number only are stuck to the bottom of the front cover and to the back of the file cover. These barcodes are printed when the file is first created.
When you first receive the file you should make sure that these details match those on the form IHT100. If not, you should send the file back to the file creation staff, asking them to correct ALF.