There are a few tax credits available solely to senior individuals (aged 65 or older) in Canada. In addition to province-specific home improvement tax credits (such as Ontario’s Seniors’ Home Safety Credit), and the medical expense tax credit, the Home Accessibility Tax Credit (HATC) is a federal credit that allows you to claim up to $20,000 of qualifying expenses for renovating or altering a home for accessibility for a senior or other qualifying individual.