You may qualify for this valuable tax credit without even knowing it

financialpost.com:

The disability tax credit is a non-refundable credit that a taxpayer — or their family — can claim annually on their return. It reduces the tax payable to offset the increased costs resulting from physical or mental impairment. The disability tax credit is also a gateway to other financial incentives, and many people who qualify do not realize it.

According to Canada Revenue Agency (CRA), a taxpayer may be eligible if a medical practitioner certifies that they have a severe and prolonged impairment in a qualifying category. The categories include hearing, speaking, vision, walking, dressing, feeding, eliminating (bowel or bladder functions), or mental functions. The impairment must be considered a marked restriction, meaning it takes the person three times longer to complete a task than it would someone at a similar age without the impairment, even with therapy, medication and devices. The restriction must be expected to last for at least one year and be present at least 90 per cent of the time.

Alternatively, if a taxpayer does not qualify in a single category but has two or more categories with impairments, the cumulative effect may qualify them if, combined, the impact is as severe as a single category restriction. An example that the CRA gives is “if a person always takes a long time to walk and dress, and the extra time it takes to do these two activities is equivalent to being unable (or taking three times longer) to do just one of them, then they may be eligible.”

A third and final category to qualify is if a taxpayer receives life sustaining therapy to support a vital function. An example is if someone has type 1 diabetes, but many other health issues can qualify. The therapy must occur at least twice weekly,