The Student Loan Interest Tax Credit in Ontario: How It Works

Paying down student debt is hard enough without wondering whether the interest is doing anything for you at tax time. The good news is that interest paid on certain government student loans qualifies for a non-refundable student loan interest tax credit — but the eligibility rules are narrower than many graduates assume, and one common financial move can eliminate the credit entirely.

This guide explains what makes a loan "eligible," who can claim the credit, how the carryforward feature works, and the mistake — consolidating a government loan into a regular bank loan — that most often costs graduates this credit permanently.

What Makes a Student Loan "Eligible"

The credit applies only to interest paid on a loan made under specific government student loan programs — the federal Canada Student Loans Act and its Ontario provincial counterpart, along with certain other recognized government student loan and financial assistance programs. It does not apply to:

• Personal lines of credit, even if used to pay for education
• Loans from a bank or credit union that aren't part of a government student loan program
• Loans from a foreign educational institution, unless made under a qualifying program
• Credit card debt used to cover school costs

Who Can Claim the Interest

Only the student who took out the loan can claim this credit — even if a parent, grandparent, or someone else actually paid the interest on the student's behalf. The credit follows the loan, not the payment source. If a family member wants to help, the practical approach is for them to give the student the money to make the payment, so the student can claim it.

The Carryforward Feature

If you don't have enough tax payable in a given year to use the full credit, the unused amount doesn't simply disappear — student loan interest credits can be carried forward for a limited number of years and claimed in a future year once you have tax payable to offset. The exact number of carryforward years is set out in the Income Tax Act and should be confirmed against current CRA guidance rather than assumed, since students often want to plan several years ahead around this feature.

The Mistake That Eliminates the Credit: Consolidation

One of the most consequential mistakes graduates make is consolidating a government student loan into a regular bank loan or line of credit — often to get a lower interest rate or simplify payments. Once that happens, the debt is no longer a government student loan for tax purposes, even though it originated as one, and interest paid on it afterward is no longer eligible for this credit. Weigh this trade-off carefully against any interest-rate savings before consolidating.

How to Claim It

You claim the credit on your personal tax return for the year the interest was paid, or in a later year using the carryforward. Keep your loan statements showing the interest portion paid during the year — student loan providers typically issue a tax slip or statement summarizing this, but it's worth confirming the figure against your own account records.

Records Worth Keeping

• [ ] Annual interest statements from your government student loan provider (federal and, if applicable, Ontario)
• [ ] Confirmation of which portions of your consolidated debt, if any, originated from a government student loan
• [ ] A record of the credit amount claimed and carried forward each year, so you don't lose track of how much remains available
• [ ] Proof of payment if a family member transferred funds to you specifically to make a loan payment

Small as it seems, this credit is one of the easier ones to overlook entirely — graduates juggling several debts at once sometimes forget the government portion qualifies for anything at all, and simply never claim it.

Frequently asked questions