Most taxpayers use the terms tax deduction and tax credit interchangeably. Since they are not accountants, this is perfectly fine unless you are particular about precision and strive for a greater understanding of tax. And while there a numerous technicalities and jargon in tax that are better left to tax professionals, this particular distinction is fairly straightforward , can useful to understand and might even save you some tax.

So, what is the difference? A tax deduction is a reduction of your net income on which your taxes payable are based, while a tax credit is a direct reduction of your taxes payable. These might sound very similar, but their impact on how much tax you pay is different. Since there are different tax brackets, a tax deduction results in a reduction of your taxes payable effectively at the highest tax bracket to which your income applies, while a tax credit (for simplicity we are only talking about the federal portion and not provincial) will only reduce your taxes by 15%, which corresponds to the lowest tax bracket. While this can get significantly more complicated, suffice it to say, if your income exceeds approximately $50k, tax deductions have a higher value i.e. they reduce your taxes by a greater amount than a tax credit since part of the $50k will be taxed based on a higher tax bracket.