In an Ontario divorce, the mortgage remains a joint legal obligation until the home is sold or refinanced into one spouse's name. Under the Family Law Act, neither spouse can sell, refinance, or place a new mortgage on the matrimonial home without the other's written consent (FLA s. 21). To keep the home, the remaining spouse must qualify alone, passing the 2026 mortgage stress test.
Key Facts: Mortgage and Divorce in Ontario
| Factor | Detail |
|---|---|
| Filing Fee | $669 provincial (paid in two installments: $224 + $445) + $10 federal = $679 total |
| Waiting Period | One-year separation required before a divorce judgment issues |
| Residency Requirement | One spouse ordinarily resident in Ontario for 12 months before filing (Divorce Act s. 3(1)) |
| Grounds | Marriage breakdown via one-year separation, adultery, or cruelty (Divorce Act s. 8) |
| Property Division Type | Equalization of net family property (not 50/50 asset split) |
As of January 2026. Verify filing fees with your local Superior Court of Justice office, as Ontario fees adjust triennially based on the Consumer Price Index.
Who Is Responsible for the Mortgage During an Ontario Divorce?
Both spouses named on the mortgage remain fully responsible for the entire debt during an Ontario divorce, regardless of who lives in the home or whose name is on title. A mortgage is a contract between you and your lender, and your separation agreement does not change it. If your name is on the mortgage and your ex stops paying, the lender can pursue you for 100% of the balance and report missed payments against your credit.
This is one of the most misunderstood aspects of mortgage divorce in Ontario. A separation agreement that says "my ex will pay the mortgage" binds the two of you, but it does not bind the bank. The lender is not a party to your family law settlement. Until you formally refinance or sell, both borrowers carry joint and several liability, meaning each person is independently liable for the full amount. Courts typically order spouses to share the ongoing carrying costs (mortgage, property tax, and insurance) on an interim basis while ownership is resolved, but that interim arrangement does not protect your credit if payments are missed.
What Is the Matrimonial Home and Why Is It Treated Differently?
The matrimonial home in Ontario is any property ordinarily occupied as the family residence at the date of separation, and it receives unique protection under the Family Law Act that no other asset receives. Under Ontario Family Law Act § 18, a couple can even have more than one matrimonial home, such as a city house and a cottage. This special status overrides the normal property division rules.
The matrimonial home breaks two standard equalization rules. First, if you owned the home on the date of marriage and it is still the matrimonial home at separation, you do NOT receive a date-of-marriage deduction for it under the equalization formula. The home's full value at separation enters the calculation. Second, excluded property loses its protection if poured into the matrimonial home. For example, if you used a $50,000 inheritance to pay down the mortgage on the matrimonial home, that $50,000 is no longer excluded and becomes shareable. These rules can dramatically increase one spouse's equalization payment, so the mortgage history of the home matters financially.
Can My Spouse Refinance or Sell the Home Without My Consent?
No. Neither spouse can sell, transfer, or place a new mortgage on the matrimonial home in Ontario without the other spouse's written consent or a court order, even if only one spouse is on title. This protection comes from Ontario Family Law Act § 21, and it applies the moment a home qualifies as a matrimonial home, well before any divorce is filed.
The consequences of ignoring this rule are severe. If a spouse disposes of or encumbers the matrimonial home without consent, a court can set aside the transaction under Ontario Family Law Act § 23, unless the buyer acted in good faith without knowledge that the property was a matrimonial home (FLA s. 21(2)). In one recent Ontario case, a sale agreement was declared void because the seller's spouse had not consented, and the buyers recovered their deposit plus $10,000 in costs. Both spouses also hold an equal right of possession under Ontario Family Law Act § 19, meaning neither can lock the other out. If consent is unreasonably withheld, the spouse seeking to sell or refinance can ask the court to dispense with consent.
How Do You Remove a Spouse From the Mortgage in an Ontario Divorce?
Removing a spouse from a mortgage in Ontario requires a full refinance, and the remaining borrower must qualify on their individual income alone, not the former combined household income. The lender will not simply delete one name from the loan. Instead, the spouse keeping the home applies for a new solo mortgage, uses it to pay out the existing loan plus the buyout amount, and the departing spouse is released from the obligation and removed from title.
Removing a spouse from the mortgage typically follows a fixed sequence. First, an appraisal establishes current market value. Second, equity is calculated by subtracting the outstanding mortgage and secured debts. Third, the keeping spouse refinances and pays the agreed buyout, often funded by the equalization payment. The single biggest hurdle in mortgage divorce Ontario cases is qualification: a borrower who comfortably carried the loan on two incomes may fail to qualify on one. A signed separation agreement is almost always required by the lender before they will approve a spousal buyout, because it documents the agreed value and the title transfer. Ontario also exempts spouse-to-spouse transfers of a matrimonial home from land transfer tax when completed through a separation agreement or court order, potentially saving thousands of dollars.
What Is the 2026 Mortgage Stress Test and How Does It Affect Buyouts?
The 2026 Canadian mortgage stress test requires the spouse keeping the home to qualify at the greater of their contract rate plus 2% or the federal benchmark rate, on their income alone. This single rule determines whether most Ontario spousal buyouts succeed or fail. A borrower must prove they can carry the payment at the inflated qualifying rate, not just the actual rate they will pay.
The income math is unforgiving. At a 5.5% qualifying scenario with a 25-year amortization, a $775,000 mortgage requires roughly $110,000 or more in gross annual income to keep the Gross Debt Service ratio under 32%. A spouse earning $85,000 cannot qualify alone at that loan size and must restructure the deal: a larger down payment funded by the equalization offset, a co-signer, or selling the home. Lenders cap the Gross Debt Service ratio (housing costs) around 32% and the Total Debt Service ratio (all debts) around 44%. For buyouts exceeding 80% loan-to-value, default insurance premiums apply, and specialized spousal buyout programs may allow financing up to 95% of the home's value when the funds are used to settle a matrimonial property division. Underwater mortgage divorce situations, where the loan exceeds the home's value, often force a sale because no equity exists to fund a buyout.
What Are Your Options for the Mortgage and Home?
Ontario divorcing spouses generally have three options for the mortgage: refinance into one name, assume the existing mortgage, or sell the home and split the proceeds. Each option carries different qualification hurdles, costs, and timelines, and the right choice depends on equity, income, and whether either spouse can pass the stress test alone.
| Option | How It Works | Key Requirement | Best When |
|---|---|---|---|
| Refinance (solo) | One spouse takes a new mortgage, pays out the old loan and the buyout | Qualify alone at the 2026 stress test rate | One spouse has strong income and wants to keep the home |
| Mortgage assumption | The keeping spouse takes over the existing loan and rate | Lender must permit assumption and approve the borrower | Existing rate is below current market and lender allows it |
| Sell the home | List, sell, and divide net proceeds after the mortgage is paid | Both spouses consent (FLA s. 21) | Neither spouse qualifies alone or the mortgage is underwater |
Mortgage assumption divorce arrangements can preserve a favourable below-market interest rate, but most Ontario lenders still require the assuming spouse to re-qualify, so it is not an automatic escape from the stress test. When neither spouse can qualify and the home is not sold, both borrowers must remain on the mortgage until income rises or the property is sold, an arrangement that keeps both financially exposed.
How Does the Mortgage Affect Equalization of Property?
The outstanding mortgage balance is subtracted as a debt in Ontario's equalization of net family property calculation, reducing the net value each spouse reports. Ontario does not split assets 50/50; instead, each spouse totals their net family property (assets minus debts accumulated during the marriage), and the spouse with the higher figure pays the other half the difference as an equalization payment.
Values are locked in at the separation date, not the divorce date. A home worth $900,000 on the separation date stays at $900,000 for equalization purposes even if it rises to $1,100,000 before the divorce finalizes, and the mortgage balance is likewise fixed at the separation-date figure. This timing rule can create winners and losers in a rising market. Because the matrimonial home receives no date-of-marriage deduction under Ontario Family Law Act § 4, the way the mortgage was paid down during the marriage directly shapes the equalization result. A spouse who used pre-marriage or inherited funds to reduce the mortgage on the matrimonial home generally cannot recover those contributions, because they merged into a shareable asset the moment they were applied to the home.
Who Gets to Stay in the Home and Keep Paying the Mortgage?
Either spouse can apply for exclusive possession of the matrimonial home in Ontario, allowing them to remain living there regardless of whose name is on title or mortgage. Under Ontario Family Law Act § 24, a court can grant temporary or final exclusive possession to one spouse, but this order does not transfer ownership or relieve anyone of mortgage liability.
Courts weigh specific factors under FLA s. 24(3) before granting exclusive possession: the best interests of any children, the financial position of both spouses, any existing orders or written agreements, the availability of other affordable accommodation, and whether there has been violence by one spouse against the other or the children. When children are involved, courts often prioritize stability by keeping them in the family home with the parent who has primary parenting time. Importantly, exclusive possession does not override the s. 21 consent requirement, so the spouse living in the home still cannot sell or refinance it unilaterally. The spouse granted possession typically becomes responsible for the carrying costs, including the mortgage, during the possession period, though the court can apportion these costs differently.