Add Comment Question: What exactly is disability tax credit? Answer: The disability tax credit (DTC) is a non-refundable tax credit that helps people with disabilities, or their supporting family member, reduce the amount of income tax they may have to pay. You can read more about it, and apply, at: https://www.canada.ca/en/revenue-agency/services/tax/individuals/segments/tax-credits-deductions-persons-disabilities/disability-tax-credit.html. Your Comment * Your Email * Your Name * Your City Note, your name, city and email is not displayed on the website. It is used to notify you that we have approved your comment.