Updated: April 2025  |  bremo.io financial guides

Using a Cosigner for a Loan in Canada

When your credit score, income, or credit history isn't strong enough to qualify for a loan on your own — or to qualify at a rate that makes sense — a cosigner can be the difference between approval and rejection. But cosigning carries significant risks for the person agreeing to help you, and both parties need to understand the full implications before proceeding.

Why Lenders Accept Cosigners

From the lender's perspective, a creditworthy cosigner reduces their risk. If the primary borrower can't repay, there's a second person with verified income and good credit who is legally obligated to cover the debt. This allows the lender to approve a loan they'd otherwise decline or to offer better terms than the primary borrower's profile would support.

How Cosigning Affects Both Parties' Credit

The Cosigner

When you cosign a loan in Canada:

• The loan appears on your credit report as if it were your own debt
• It affects your credit utilization and debt-to-income ratio
• Every payment — on time or late — is reflected on your credit report
• If the borrower defaults and the lender pursues you, any missed payments on your record will damage your score
• The debt counts against you if you apply for new credit (mortgage, car loan, etc.) — lenders see it as your obligation

The Primary Borrower

• The loan appears on your credit report and every on-time payment builds your credit history
• If you miss payments, your credit score drops and the cosigner's score drops too
• Successfully repaying the loan is one of the best ways to rebuild or establish credit

Cosigner vs. Co-Borrower: What's the Difference?

These terms are sometimes used interchangeably but have a distinction:

• Cosigner: Guarantees the debt but typically doesn't benefit from it (doesn't own the car, doesn't live in the home, doesn't receive the loan proceeds). Responsible only if the primary borrower fails to pay.
• Co-borrower (joint applicant): Applies with the primary borrower, shares equal responsibility from day one, and typically has an equal claim to whatever the loan finances. Both incomes are counted for qualification purposes.

For a personal loan, the distinction matters less — both arrangements make both parties equally liable. For a mortgage or car loan, the distinction between who owns the asset and who is on the loan can have legal and tax implications.

When to Use a Cosigner

A cosigner makes sense when:

• You're a new immigrant or young adult with limited Canadian credit history
• You've had past credit problems (collections, bankruptcy, consumer proposal) that are resolved but still on your report
• Your income alone is insufficient to qualify but adding a cosigner's income improves the DTI calculation
• You need a better rate than your own profile supports and a cosigner unlocks a lower tier

Risks for the Cosigner

This section deserves particular emphasis because cosigning is frequently treated too casually:

• Full liability: If the borrower stops paying for any reason — job loss, illness, relationship breakdown, irresponsibility — the lender comes to the cosigner for the full remaining balance
• Limited recourse: The cosigner may have difficulty recovering money paid from the primary borrower without a separate legal agreement
• Impact on cosigner's own borrowing: The cosigned debt is counted as the cosigner's own debt load, potentially preventing them from qualifying for a mortgage or other loan
• Relationship damage: Financial disputes are among the most common causes of family and friendship breakdown. Even with the best intentions, things go wrong.
• No easy exit: A cosigner cannot simply remove themselves from the loan. The only ways out are: the loan is paid in full, the primary borrower refinances without the cosigner, or the lender agrees to a cosigner release (rare and requires the primary borrower to qualify independently)

Protecting Yourself as a Cosigner

If you choose to cosign, take these steps:

1. Get online account access — Request the ability to monitor the loan account so you can see payment status in real time
2. Set up payment alerts — Know immediately if a payment is missed so you can step in before it impacts your credit
3. Create a written side agreement — A separate written agreement between you and the borrower outlining expectations, what happens if they miss a payment, and recourse is advisable (a lawyer can draft this for a few hundred dollars)
4. Verify the borrower's ability to repay — Review their actual income, expenses, and budget before agreeing
5. Only cosign what you could afford to repay yourself — This is the most important rule. Never cosign a debt you couldn't handle if it fell entirely to you

How to Get Released as a Cosigner

Getting off a cosigned loan requires one of:

• Full repayment: The loan is paid off and the obligation ends naturally
• Refinancing: The primary borrower, once their credit has improved, applies to refinance the loan in their name alone. If approved, the new loan pays off the old one and the cosigner is released.
• Cosigner release clause: Some lenders (particularly for student loans) offer a formal cosigner release after a certain number of on-time payments. Check the loan agreement for this option.
• Lender agreement: In rare cases, a lender may agree to release a cosigner if the primary borrower demonstrates sufficient creditworthiness

Alternatives to Using a Cosigner

If you can't find a cosigner or don't want to put someone in that position, consider:

• Secured loans using your own collateral (savings account, vehicle) to reduce lender risk
• Credit-builder loans specifically designed for people establishing credit
• Waiting 6–12 months to improve your credit score before applying
• Applying for a smaller loan amount that your profile alone supports
• Borrowing from a credit union with a relationship-based approach to underwriting