842. Notwithstanding any other provision of this Act,(a) an insurer shall not make any deduction under section 140 in computing its income for a taxation year from an insurance business in Canada in respect of a premium or other consideration for a life insurance policy in Canada or an interest in such a policy;
(b) an insurer not resident in Canada or a life insurer resident in Canada that carries on part of its insurance business for a taxation year outside Canada shall not make any deduction under section 160 or 163 in computing its income for a taxation year from carrying on an insurance business in Canada, except to the extent provided for in section 842.1.