“ 80(1A) Where the Commissioners – (a) have assessed a person to VAT for a prescribed accounting period (whenever ended), and (b) in doing so, have brought into account as output tax an amount that was not output tax due, they shall be liable to credit the person with that amount. ”
“ 80(4) The Commissioners shall not be liable on a claim under this section – (a) to credit an amount under subsection (1) or (1A) above, or (b) … if the claim is made more than 3 years after the relevant date. ”
“ 6(3) Where the transferee of a business or part of a business has under paragraph (1) above been registered under Schedule 1 or 1A to the Act in substitution for the transferor of it, and with the transferor's registration number — ( a ) any liability of the transferor existing at the date of the transfer to make a return or to account for or pay VAT under regulation 25 or 40 shall become the liability of the transferee, ( b ) any right of the transferor, whether or not existing at the date of the transfer, to credit for, or to repayment of, input tax shall become the right of the transferee,… ( c ) any right of either the transferor, whether or not existing at the date of the transfer, or the transferee to payment by the Commissioners under section 25(3) of the Act shall be satisfied by payment to either of them. ( d ) any right of the transferor, whether or not existing at the date of the transfer, to claim a refund under section 36 of the Act shall become the right of the transferee, … ( e ) any liability of the transferor, whether or not existing at the date of the transfer, to account for an amount under Part XIXA of these Regulations, shall become that of the transferee, and ( f ) any records relating to the business which, by virtue of these Regulations or a direction made by the Commissioners, are required to be preserved for any period after the transfer shall be preserved by the transferee unless the Commissioners, at the request of the transferor, otherwise direct. ”