10/15/2026
Tax credits and tax deductions are often treated as interchangeable.
They are not.
A deduction reduces the income your tax is calculated on.
A credit reduces your tax after that calculation has been made.
At $80,000 of taxable income, a $1,000 deduction saves about $205 in federal tax because that income falls within the 20.5% federal bracket.
A $1,000 eligible amount for most federal non-refundable credits reduces federal tax by $140 because the 2026 credit rate is 14%.
Provincial tax is separate, and some credits follow different rules.
There is another difference that often gets missed.
Some deductions, including RRSP deductions, can lower the net income used to calculate CCB, the GST/HST credit, OAS recovery tax and other income-tested amounts.
A non-refundable tax credit generally reduces tax owing but does not lower your net income. It can reduce tax to zero, but it cannot create a refund on its own.
Before comparing tax deductions and credits, ask:
1. Does it reduce my income or my tax?
2. Is the credit refundable or non-refundable?
3. Could it affect benefits or clawbacks?
Save this for tax season. Share it with someone who uses “credit” and “deduction” as if they mean the same thing.
Sources: Canada Revenue Agency and Department of Finance Canada, 2026.