156.8. A taxpayer may deduct, in computing the taxpayer’s income from a business for a taxation year, the aggregate of all amounts each of which is an amount otherwise deductible in computing that income for that taxation year and that is(a) an amount paid to an employee, after 23 March 2006, as the total or partial reimbursement of the cost of an eligible transit pass taking the form of a subscription for a minimum period of one month, valid after that date, that the employee acquired with a view to using it to commute between the employee’s ordinary place of residence and the employee’s work location;
(b) an amount paid to an employee, after 23 March 2006, as the total or partial reimbursement of the cost of an eligible paratransit pass, valid after that date, that the employee acquired with a view to using it to commute between the employee’s ordinary place of residence and the employee’s work location; or
(c) the cost to the taxpayer of an eligible transit pass or eligible paratransit pass that is supplied, after 23 March 2006, to an employee primarily to commute between the employee’s ordinary place of residence and the employee’s work location.