If you have a car loan and are thinking about refinancing your mortgage, you may wonder whether that monthly vehicle payment could affect your application.
The short answer is yes, a car loan can affect mortgage qualification, but it does not automatically prevent you from refinancing.
For Ontario homeowners, the important issue is not simply whether you have a financed vehicle. Lenders look at how your existing debt payments fit with your income, housing costs, credit profile, property value, home equity, and the mortgage you are requesting.
At Mortgage Brain, we encourage homeowners to look at both sides of a refinance: what the property can support and what the borrower’s income can support.
Quick Answer
A car loan can affect your ability to refinance your mortgage in Ontario because its required payment is generally included when calculating your Total Debt Service ratio, or TDS.
FSRA explains that TDS considers housing expenses plus other debts and obligations, including car loans and leases, credit cards, personal loans, and certain support payments.
A larger monthly car payment uses more of the income available within that calculation. Depending on the rest of the application, this may reduce mortgage borrowing capacity or affect whether the proposed refinance meets lender requirements.
However:
Having a car loan does not automatically mean you cannot refinance. The important factor is how that payment fits within your complete financial picture.
Income, credit, home equity, property value, other debts, employment stability, existing mortgage terms, the amount being requested, and lender requirements can all influence the outcome.
Key Takeaways
- A car loan does not automatically prevent mortgage refinancing.
- Car-loan and vehicle-lease payments are generally included in the Total Debt Service calculation.
- A larger monthly vehicle payment can reduce the amount of income available to support mortgage borrowing.
- Home equity and income qualification are separate parts of a refinance assessment.
- Paying off a car loan may change your debt-service calculation, but it does not guarantee mortgage qualification.
- Refinancing to consolidate a vehicle loan can involve trade-offs, including potentially extending repayment and securing the debt against your home.
Why Does a Car Loan Matter When Refinancing?
When you refinance your mortgage, lenders look beyond the amount of equity in your home.
They also assess whether your income can support the proposed mortgage along with your other financial obligations.
Two common calculations are used to help evaluate this.
Gross Debt Service Ratio
The Gross Debt Service ratio, or GDS, compares qualifying housing expenses with gross household income.
Housing expenses generally include items such as:
- Mortgage payments
- Property taxes
- Heating costs
- An applicable portion of condominium fees
Total Debt Service Ratio
The Total Debt Service ratio, or TDS, goes further.
It includes housing costs plus other required debt payments.
According to FSRA, these other obligations can include car loans and leases, credit cards, personal loans, and certain support payments.
This means your vehicle payment can affect the borrower side of a refinancing application even though it has nothing to do with the value of your home.
How Does a Car Payment Affect Your TDS Ratio?
A simplified TDS calculation looks at:
Housing costs + other required debt payments ÷ gross income
FCAC’s consumer mortgage guidance says total debt load generally should not exceed 44% of gross household income. Individual lender requirements and mortgage products can differ, however, and debt-service ratios are only part of the overall affordability assessment.
Consider a simplified example.
An Ontario household earns $10,000 in gross monthly income.
Its qualifying housing costs are $3,000 per month, with another $600 in qualifying monthly debt payments.
Without a car loan:
$3,000 + $600 = $3,600 in monthly obligations
Now suppose the household has a $750 monthly car payment:
$3,000 + $600 + $750 = $4,350 in monthly obligations
The car payment has not changed the home’s value or the homeowner’s equity.
It has changed the amount of monthly income already committed to debt payments.
This example is illustrative only. Actual lender calculations can vary based on the mortgage, qualifying rate, debt type, documentation, income and lender methodology.
Can You Have Plenty of Home Equity and Still Have Trouble Qualifying?
Yes.
This is an important distinction when considering a refinance.
Home equity answers a property question.
It helps establish how much of the property’s value is not already represented by secured debt.
Debt-service calculations answer an income question.
They help a lender evaluate whether the borrower’s income supports the proposed mortgage and other required obligations.
A homeowner could therefore have considerable home equity while also carrying:
- A large vehicle payment
- Multiple car loans
- Credit-card balances
- Personal loans
- Lines of credit
- Other required financial obligations
At Mortgage Brain, we find it useful to separate a refinance into three areas:
Property capacity: Does the property’s accepted value and available equity support the financing being requested?
Income capacity: Does qualifying income support the proposed mortgage and other debt obligations?
Overall suitability: Do the mortgage structure, costs, debts, cash-flow implications and longer-term goals make sense for the homeowner?
Strong home equity does not automatically solve an income-qualification issue, just as strong income does not automatically create sufficient home equity.
Does a Car Loan Affect GDS or TDS?
A typical vehicle loan or lease affects TDS rather than GDS.
GDS focuses on housing-related expenses.
TDS adds other debt obligations, including vehicle financing.
That makes TDS particularly relevant for homeowners who may comfortably carry their current housing expenses but have significant monthly obligations outside the mortgage.
A homeowner with a $900 monthly vehicle payment, for example, has a different debt profile from someone with the same income and mortgage expenses but no car payment.
Whether that difference changes the refinance outcome depends on the complete application.
Can a Car Loan Affect the Mortgage Stress Test?
A car loan does not change the stress-test rate itself, but the payment can affect the overall debt-service calculation used when qualifying.
For many newly underwritten uninsured mortgages at federally regulated lenders, OSFI’s current Minimum Qualifying Rate is the greater of:
the mortgage contract rate plus 2 percentage points, or 5.25%.
The qualifying mortgage payment may therefore be higher than the payment calculated using the actual contract rate.
Your existing debt obligations, including applicable car payments, are then part of the broader debt-service assessment.
OSFI provides an exception from the MQR for certain uninsured straight switches at renewal when there is no increase to either the mortgage amount or amortization. A refinance involving additional borrowing is different from that type of straight switch.
Does the Remaining Balance on Your Car Loan Matter?
Potentially.
Homeowners sometimes focus on the balance and overlook the monthly obligation.
For mortgage qualification, how the lender treats the required payment can be particularly important.
Suppose one homeowner owes $8,000 on a vehicle but has a relatively large required monthly payment. Another owes more but has a different payment structure.
Those debts may affect the application differently depending on lender methodology.
The remaining term can also matter under some lender policies. A loan that is nearly repaid may not always be treated the same way as a new five-year vehicle loan.
Because policies can vary, homeowners should avoid assuming that a car loan will automatically be ignored simply because only a few payments remain.
Should You Pay Off Your Car Loan Before Refinancing?
Not necessarily.
Paying off a vehicle loan could remove an existing monthly debt obligation once the loan is discharged. That may change the financial picture used for mortgage qualification.
But there is another side to the decision.
Using a large amount of savings to eliminate a car loan could leave you with less available cash for emergencies, refinancing expenses, property costs, or other financial needs.
Before paying off a car loan specifically for a mortgage application, consider:
- The remaining car-loan balance
- The required monthly payment
- How much time remains on the loan
- Your available savings
- Other debts
- The amount you want to refinance
- Refinancing costs
- Lender requirements
Paying off a car loan should not be treated as a guaranteed way to qualify for refinancing.
It can be useful to have the mortgage numbers reviewed first.
Can You Refinance Your Mortgage to Pay Off a Car Loan?
Potentially.
Some Ontario homeowners consider using a refinance to consolidate a car loan along with credit cards, personal loans, or unsecured lines of credit.
This may change monthly cash flow, but the monthly payment should not be the only consideration.
A vehicle loan is usually designed to be repaid over a shorter period than a mortgage. Moving that debt into mortgage financing could extend repayment considerably.
As a result, even if the new borrowing has a lower interest rate or required monthly payment, the total interest paid over time could be higher depending on the repayment structure.
The debt also becomes part of borrowing secured against the home.
Suitability depends on factors such as:
- Income
- Credit profile
- Home equity
- Property value
- Existing mortgage terms
- Car-loan balance
- Other debts
- Employment stability
- Refinancing costs
- Financial goals
- Lender requirements
Debt consolidation should therefore be evaluated based on the payment, total cost, repayment period and risk, not just the interest rate.
A Practical Ontario Homeowner Example
Consider two homeowners with the same gross household income and similar properties.
Both want to refinance.
| Monthly Obligation | Homeowner A | Homeowner B |
|---|---|---|
| Qualifying housing costs | $3,000 | $3,000 |
| Other debt payments | $500 | $500 |
| Vehicle payment | $0 | $850 |
| Total monthly obligations shown | $3,500 | $4,350 |
Their properties could have identical values and the same amount of home equity.
The difference is on the borrower side.
Homeowner B has an additional $850 monthly obligation that may need to be included when calculating TDS.
That does not mean Homeowner B will necessarily be declined. Income, credit, other debts, requested mortgage amount, qualifying rate, property details and lender requirements all matter.
The example demonstrates an important principle:
A car loan can reduce income-based mortgage capacity without reducing the equity in your home.
What If You Finance a Car During Your Refinance Application?
Be careful about taking on new debt while a mortgage application is underway.
A mortgage approval or commitment is generally based on the financial information provided to the lender.
FSRA notes that if a lender later identifies a new debt or obligation that was not previously disclosed, the mortgage may need to be renegotiated and the approval could potentially be affected.
A new:
- Car loan
- Vehicle lease
- Personal loan
- Line of credit
- Significant credit-card balance
could change your financial profile.
If your debts or financial circumstances change while refinancing, tell your mortgage professional promptly so the application can be reviewed using current information.
Important Terms to Understand
Car Loan: Financing used to purchase a vehicle and repaid through scheduled payments.
Vehicle Lease: An agreement to use a vehicle for a specified period in exchange for scheduled payments.
Gross Debt Service Ratio: A calculation comparing qualifying housing expenses with gross household income.
Total Debt Service Ratio: A calculation comparing housing expenses and other debt obligations with gross household income.
Home Equity: The difference between the property’s value and debt secured against it.
Mortgage Refinancing: Restructuring or replacing mortgage financing, often involving changes to the mortgage amount, amortization or borrowing purpose.
Mortgage Stress Test: A qualifying-rate requirement applied to many mortgage applications to assess whether the borrower can support the mortgage at a higher qualifying rate.
What Should You Consider Before Refinancing With a Car Loan?
Do not look at the car payment in isolation.
How Large Is the Monthly Vehicle Payment?
The payment affects monthly debt obligations and may influence TDS.
How Long Is Left on the Loan?
The remaining term may be relevant depending on lender policies.
What Other Debts Do You Have?
Credit cards, personal loans, lines of credit and other obligations can also affect total debt service.
How Much Home Equity Is Available?
Equity affects what the property may support, but it does not replace borrower qualification.
Why Are You Refinancing?
Accessing equity, consolidating debt and restructuring a mortgage can have different costs and considerations.
What Will the New Mortgage Cost Over Time?
Consider the interest rate, amortization, mortgage penalties, fees and total borrowing cost rather than focusing only on the monthly payment.
How Mortgage Brain Can Help
Mortgage Brain can help Ontario homeowners understand how a car loan and other debts fit into a potential mortgage refinance.
A review may consider:
- Mortgage balance
- Property value
- Available home equity
- Car-loan or lease payments
- Other consumer debts
- Income and employment
- Credit profile
- Debt-service calculations
- Mortgage terms and potential penalties
- Refinancing costs
- Debt-consolidation objectives
- Monthly cash flow
- Longer-term borrowing costs
The goal is not simply to determine whether a car payment is “too high.” It is to understand how the payment fits within the complete mortgage picture and what trade-offs may be involved.
You can also use the Mortgage Brain mortgage calculator to explore estimated mortgage-payment scenarios. Calculator results are estimates only and do not represent qualification, approval, or a guaranteed interest rate.
Frequently Asked Questions
Can I refinance my mortgage if I have a car loan?
Potentially. A car loan does not automatically prevent refinancing, but its required payment can affect your TDS calculation. Income, home equity, property value, credit, other debts and lender requirements also matter.
Does a car payment reduce how much mortgage I can qualify for?
It can. A required vehicle payment increases your monthly debt obligations and may reduce the mortgage amount supported by your income under a lender’s qualification requirements.
Does a car lease count toward mortgage qualification?
Yes. FSRA identifies car loans and leases as examples of obligations included when calculating TDS.
Should I pay off my car before refinancing?
It depends. Eliminating the payment may change your debt-service calculation, but using savings to pay off the vehicle can have other financial consequences. It is helpful to understand how the lender will treat the debt before making the decision.
What if my car loan only has a few payments remaining?
Lender treatment can vary. Do not assume a nearly completed loan will automatically be excluded from qualification.
Can I consolidate my car loan into my mortgage?
Potentially, subject to sufficient equity, qualification, suitability and lender requirements. However, extending a car balance over a longer mortgage repayment period could increase the time it takes to repay that debt and potentially increase total interest costs.
Will getting a new car loan during refinancing affect my application?
It can. New debt changes your financial obligations and may require the lender to reassess the application.
Does a paid-off vehicle improve mortgage qualification?
A paid-off vehicle does not create an ongoing car-loan payment. However, mortgage qualification still depends on income, credit, other debts, housing expenses, property value, the requested mortgage and lender requirements.
Final Thoughts
A car loan can affect mortgage refinancing in Ontario, but it does not automatically stop you from refinancing.
The main issue is the payment obligation.
A vehicle loan or lease can increase your Total Debt Service ratio, which may affect how much mortgage financing your income supports. At the same time, lenders consider home equity, property value, credit, income, employment, other debts and the mortgage being requested.
A simple way to remember the relationship is:
Home equity helps determine what the property may support. Debt-service calculations help determine what your income may support. Refinancing depends on the overall application meeting applicable lender requirements.
If you’re unsure whether a car loan, credit-card debt, personal loan or other obligation could affect your refinancing options, speaking with a Mortgage Brain advisor can help you better understand the numbers and available options before making a decision.
Sources Referenced
- Financial Services Regulatory Authority of Ontario, Mortgage Application Process
- Financial Consumer Agency of Canada, Preparing to Get a Mortgage
- Office of the Superintendent of Financial Institutions, Minimum Qualifying Rate for Uninsured Mortgages
Disclaimer
Mortgage Brain AI is a sub-brand of Matrix Mortgage Global, FSRA Licence #11108.
This article is for general educational purposes only and does not constitute financial, legal, tax, investment, credit-counselling, insolvency, automotive-financing, or personalized mortgage advice.
Mortgage refinancing, debt consolidation, HELOCs, and other home-equity solutions are subject to lender approval, income and employment verification, credit review, property valuation, applicable loan-to-value requirements, debt-service calculations, mortgage terms, documentation, regulations, qualification requirements, and individual lender policies.
The examples in this article are simplified illustrations. Actual lender calculations may differ depending on income, debt treatment, mortgage terms, qualifying rates, property characteristics, lender methodology, and other factors.
Using mortgage financing to repay a car loan or other debt may extend the repayment period and convert the balance into borrowing secured against the property. A lower interest rate or required monthly payment does not necessarily result in lower total borrowing costs.
Mortgage rates, qualification requirements, lender policies, products, regulations, property values, and fees may change.
Mortgage Brain does not guarantee mortgage approval, refinancing eligibility, debt consolidation, access to home equity, a particular interest rate, lower payments, savings, or any specific financial outcome.
