Perhaps one of the most commonly missed and often the most valuable tax credit available to people with disabilities is the Disability Amount. This credit is most often called the Disability Tax Credit (DTC). It is a non-refundable tax credit which can reduce the amount of tax that a person with a disability has to pay.
If the DTC is not required by the person with a disability to reduce their taxable income to zero, then it may be transferred in whole or in part to a family member who supplied some or all of the basic necessities of life such as food, shelter and clothing to the person.
This can save you THOUSANDS of dollars and is retroactive!