The tax rate of the lowest tax bracket was 15 percent, so the value of the Disability Tax Credit was $1,165 (15 percent of $7,766) in 2014. [...] According to the Report, the federal Department of Finance sees the purpose of the Disability Tax Credit as promoting ‘horizontal equity’ [Technical Advisory Committee on Tax Measures for Persons with Disabilities 2004]. [...] A Refundable Disability Tax Credit A tax credit that pays its full value to a tax filer, regardless of the amount of income tax the tax filer owes, is called a ‘refundable’ tax credit. [...] However, this Refundable Credit would completely replace the current Disability Tax Credit, so we need to subtract the cost for working age people of the current Disability Tax Credit to find the incremental federal cost of the proposed Refundable Credit. [...] The provinces and territories and the Disability Tax Credit Table 1 Net federal cost of a Refundable Disability Tax Credit (RDTC) in 2014 for ages 18-64.