Refinancing to Buy Out a Co-Owner in Ontario: A Step-by-Step Guide

Shared ownership of property works until it doesn't. A relationship ends, a parent dies and leaves the family home to two siblings who now live in different cities, or business partners who once agreed on everything suddenly don't. Whatever brought you to this point, the practical question is the same: how does one person keep the property while the other walks away with their share of the equity?

Refinancing to buy out a co-owner in Ontario is one of the most common solutions — and one of the most legally intricate. Getting it right means coordinating an appraisal, a new mortgage, a title transfer, and the payment of land transfer tax, often all on the same day. This guide walks through each stage so you know what to expect before you call a lawyer.

Why the Situation Arises

The three scenarios we see most often:

• Separation or divorce — A couple owns a home together and one person wants to stay. Rather than sell and split the proceeds, the staying partner buys out the leaving partner's interest.
• Inherited property — A parent passes away and leaves the property to two or more adult children. One child wants to live there or hold it as an investment; the others want their cash now.
• Business partner split — A jointly owned investment or commercial property needs to be unwound when the partnership dissolves.

The legal mechanics are almost identical in all three situations, though the tax and exemption rules can differ significantly.

Step 1: Agree on the Property's Value

You cannot structure a buyout without knowing what the property is worth. The most defensible way to establish value is an independent appraisal by a licensed real estate appraiser. Both parties should ideally accept the same appraisal; if trust has broken down, each party may commission their own and negotiate from those numbers.

Lenders will almost always order their own appraisal anyway when you apply for the new mortgage, so the bank's number will be a third data point if the parties disagree.

Calculating the Buyout Amount

Once you have an agreed value, the buyout calculation is straightforward in principle:

1. Start with the agreed property value.
2. Subtract any outstanding mortgage balance.
3. The remainder is the net equity.
4. Divide the net equity according to each owner's ownership share (equal shares for most couples; sometimes unequal for siblings or business partners depending on how title was held).

The departing co-owner receives their share of the net equity. The staying co-owner must come up with that amount — typically through the new mortgage.

Step 2: Qualify for a New Mortgage

This is where many buyouts stall. The staying co-owner must qualify for a mortgage large enough to:

• Pay out the existing mortgage in full (lenders rarely let you just remove a name — they want to see a brand-new loan underwritten on the surviving borrower alone), and
• Pay the departing co-owner their equity share.

Lenders assess this based on the staying owner's income, credit, and debt ratios — without the co-owner's income to support the application.

What If You Can't Qualify Alone?

If the staying owner cannot qualify solo, a few paths exist:

• Add a co-signor or guarantor — a family member who goes on the mortgage (though not necessarily on title) to boost the application.
• Negotiate a vendor take-back arrangement — the departing co-owner effectively lends the staying owner a portion of the buyout, secured against the property, and is paid out over time. This requires careful legal drafting.
• Adjust the buyout terms — the departing co-owner accepts a smaller immediate payment and a promissory note for the balance, registered as a second charge on title.
• Sell the property — if none of the above work and no agreement can be reached, see the section on partition and sale below.

Step 3: The Title Transfer and Mortgage Registration

Once the mortgage is approved, your real estate lawyer coordinates what is called a "back-to-back" closing:

1. The new mortgage funds flow into the lawyer's trust account.
2. The old mortgage is discharged.
3. A transfer deed moves the departing co-owner's interest to the staying owner.
4. The new mortgage is registered against the now-solely-owned property.
5. The departing co-owner receives their buyout funds, net of any amounts owed.

All of this happens simultaneously — or as close to it as the land registry system allows. The departing co-owner signs a transfer deed and, crucially, a discharge or release of any obligations under the old mortgage (the lender handles the mortgage discharge separately).

Step 4: Land Transfer Tax — And the Spouse Exemption

Ontario charges land transfer tax on the value of consideration paid on a transfer. In a buyout, the "consideration" is generally the amount paid for the departing co-owner's share. Rates are tiered based on value — as of writing, verify the current rate schedule with your lawyer.

The Spouse Exemption on Marriage Breakdown

Ontario's Land Transfer Tax Act contains an exemption for transfers between spouses on the breakdown of a marriage or common-law relationship. If the transfer qualifies, no LTT is payable. The requirements are specific:

• The transfer must be between spouses (legally married or qualifying common-law partners under Ontario law).
• It must be in accordance with a separation agreement or court order.
• Both parties must be transferring their principal residence, or the property must otherwise meet the statutory criteria.

This exemption does not apply automatically in sibling or business-partner buyouts — those transfers are generally taxable. The Toronto municipal land transfer tax also applies to properties within the City of Toronto, effectively doubling the bill for city properties.

Your lawyer will calculate the exact LTT owing and remit it at the time of registration.

When You Cannot Agree: Partition and Sale

If the co-owners cannot reach an agreement on value or terms, Ontario's Partition Act gives either party the right to apply to court for an order to sell the property. A court can order the property listed and sold, with proceeds divided according to ownership shares, or in some cases can order one party to buy out the other at a court-determined price.

Partition proceedings are slow, adversarial, and expensive compared to a negotiated buyout. They are a last resort — but knowing the option exists can sometimes motivate the other party to negotiate in good faith.

Frequently asked questions