Section 49

the registration or cancellation of registration of any person under this Act;

the tax chargeable on the supply of any goods or services or on the importation of any goods;

the amount or proportion of any input tax or interest thereon which may be credited or allowable to a person;

the proportion of any supplies that is to be taken as consisting of taxable supplies;

a claim for or the amount of any refunds under section 25;

any direction or supplementary direction made under paragraph 2 of the First Schedule;

any direction under paragraph 1 of the Third Schedule;

any refusal to permit the value of supplies to be determined by a method described in a notice issued under section 41(3)(a);

any requirements imposed by the Comptroller in a particular case under section 43(2);

an assessment —

under section 45(1) or (2) in respect of a period for which the appellant has made a return under this Act;

under section 45(6A) or (8); or

of penal tax under section 48,or the amount of such an assessment;

the declaration to be the agent of another person under section 79;

the requirement of any security under section 81(3);

a claim for the repayment of an amount under section 90.