If you're struggling to qualify for a mortgage in Canada due to a limited credit history or income verification issues, this guide explains how adding a mortgage guarantor to your application can help and whether it might be right for you.
Despite years of saving, most Canadians still require a mortgage to purchase a home. Although ownership costs have somewhat eased from their peak in 2022, home prices in major housing markets like the Toronto housing market and the Vancouver housing market remain significantly high, making it difficult for some buyers to get mortgage approval. Some homebuyers may need additional support to qualify, which is where a mortgage guarantor can help. By providing added assurance to the lender, a guarantor can strengthen the homebuyer's application, particularly for borrowers with lower credit scores or inadequate income.
A guarantor signs a guarantee document as part of the mortgage agreement, agreeing to make the mortgage payment if the primary borrower fails to do so. This reduces the risk for the lender, increasing the chances of approval. Usually, a guarantor is liable for making the payments only after the lender has exhausted all other collection avenues. Oftentimes, a guarantor helps secure a mortgage for borrowers who have adequate income and are capable of making payments but cannot be approved due to other reasons, such as credit problems.
Guarantors can help secure mortgage approval for borrowers who are financially able to make the monthly payments but require additional support on their application due to scenarios such as:
Having a guarantor may also help some primary borrowers bargain the rate of interest on their mortgages.
✅ Eligibility & Risk Checklist
Borrower is a good fit for a guarantor if…
Guarantor should ideally meet…
Both a mortgage co-signer and a guarantor are responsible for your debt if you fail to make payments; however, there are a few key differences between the two. A co-signer is closer to a co-borrower in terms of signing documents, ownership and risk. The table below explains the differences between a guarantor, co-signer and a co-borrower.
| Feature | Guarantor | Co-Signer | Co-Borrower |
|---|---|---|---|
| Listed on Property Title | ❌ Not on title | ✔️ On title | ✔️ On title |
| Signs Mortgage Documents | Signs only the guarantee document | Signs all mortgage documents | Signs all mortgage documents |
| Ownership Rights | Has no ownership rights | Has partial ownership | Has full joint ownership (shared borrower) |
| Liability for Mortgage Payments | Liable only if the primary borrower defaults and the lender has exhausted all other collection methods | Liable for missed payments immediately | Fully liable for all mortgage payments as a joint borrower |
| Primary Use Case | Borrower has high income but weak/thin credit or needs slight support | Borrower's income/credit file is weak and requires significant support | Borrower's income alone is insufficient to qualify; both incomes are combined to meet GDS/TDS ratios |
| Impact on Their Own Borrowing Capacity | Debt may or may not appear in credit calculations, depending on the lender; it is still considered a contingent risk | Mortgage appears on credit; it affects ratios and borrowing capacity | Mortgage appears on credit; it significantly affects borrowing power |
| Risk to Helper | Medium — steps in only after the lender fails to collect from the borrower | High — any missed payment affects their credit immediately | High — fully responsible for payments from day one |
| Property Rights in Relationship Changes | None | May require legal removal from title | Full shared ownership — removal requires refinancing or transfer of title |
| Ease of Removal | Usually removed at renewal/refinance once the borrower fully qualifies | Requires refinance + title transfer | Requires refinance + title transfer |
| Typical Lender Availability | Not all lenders allow guarantors | Most lenders accept co-signers | Universally accepted (standard mortgage structure) |
A guarantor is usually added to applications where the primary borrower meets the income requirement but has credit issues. Meanwhile, a cosigner is usually required for applications where the primary borrower fails to meet income requirements, often because they don't have adequate documents to prove their income. Guarantors usually need to have a better financial standing than a co-signer.
Joint mortgages also involve multiple parties, but differ from a guarantor or a cosigner arrangement. In a joint mortgage, all the borrowers are co-owners of the property and are equally responsible for making the mortgage payments. In a joint mortgage, the financial resources of multiple individuals are combined to qualify for a mortgage. Meanwhile, guarantors and co-signers take responsibility for the mortgage payments only to help the principal borrower qualify.
A mortgage guarantor is usually a spouse, parent, or immediate relative who is willing to take responsibility for the mortgage payments when the primary borrower fails to make the payments. For example, parents may become guarantors for their kids' mortgages, or a sibling may agree to be a guarantor for a mortgage taken by their sibling. A person has to meet some requirements to qualify as a guarantor. The general eligibility requirements for becoming a guarantor are
A lender typically runs a credit check on the guarantor to ensure the creditworthiness of the guarantor. In addition, the guarantor also has to provide their financial information to the lender, including their income, assets and existing debt.
If you cannot get approved for a mortgage by yourself, a lender may suggest you get a guarantor or a co-signer based on your situation. The following steps can help you get a guarantor for your mortgage application:
1. Find a Guarantor: The first and foremost step is to find someone who is willing to sign your mortgage agreement as a guarantor. This person should be a close friend or a relative with whom you must share mutual trust. The person should have a sound financial background and must be willing to help you. You should also ensure that they are aware of the risks of becoming a guarantor.
2. Find a Lender: The next step is to find a lender that allows a guarantor. While many lenders accept a guarantor, there are some lenders that do not allow for guarantor-backed mortgages. You will have to research different lenders and talk to them about making a mortgage application backed by a guarantor. Alternative lenders generally offer subprime mortgage solutions. You should ask the lenders about the different interest rate options offered by them and inquire if the rate will be different if a guarantor is a part of the agreement.
3. Submit the Mortgage Application and Documents: Once you find a lender and a guarantor, you will have to complete all the paperwork and submit it. You will also have to submit your guarantor's financial documents along with your mortgage documents to prove their eligibility. Documents that are typically submitted include identification documents, paystubs, bank statements, proof of assets, and any other documents that can help prove the financial ability of the guarantor. The lender will use these documents to approve or reject the guarantor.
4. Get the Guarantee Document Signed: Once the guarantor is approved, they will have to sign the guarantee document that legally binds them to repay the mortgage if the primary borrower fails to do so.
While becoming a guarantor for a loved one may help them get a mortgage, it may pose some risks for you. Listed below are the risks you should consider before becoming a guarantor for someone.
If someone has asked you to be a guarantor for them, asking the following questions can help you decide whether or not you should agree to be the guarantor.
In general, a guarantor is released from a mortgage only when the primary borrower is able to assume the mortgage on their own merit. If the primary borrower's financial situation improves, they can request the mortgage lender to remove the guarantor from the mortgage. It is likely that the primary borrower will have to refinance the mortgage or qualify for a new mortgage in this situation. There may be additional fees for the process of removing a guarantor.
Yes. While the mortgage may not always appear as a loan on the guarantor's credit report, lenders will consider the guaranteed debt when assessing the guarantor's borrowing capacity. If the borrower misses payments, it can negatively affect the guarantor's credit.
Yes, but typically when the borrower refinances or qualifies on their own at the time of renewal. The lender must approve the removal, and the borrower must meet income and credit requirements independently.
Most lenders require guarantors to have strong credit, stable income, and sufficient financial capacity. They are often close family members.
No. A guarantor is responsible for the mortgage debt but is not automatically added to the property title.
If the borrower stops making payments, the guarantor becomes legally liable for repaying the mortgage.
A guarantor can help boost the mortgage application of individuals who meet most of the lending criteria but are not qualified due to some issues. A guarantor is usually a parent, spouse or close relative who is willing to help you by guaranteeing the mortgage payments. That said, being a guarantor is a legal liability, and one must carefully consider the pros and cons of becoming a guarantor before agreeing to be one.
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