More First-Time Buyers Are Qualifying With a Co-Borrower — Here's What That Actually Means

What Equifax's Own Numbers Show

A first-time buyer qualifying for a mortgage alone is increasingly the exception rather than the rule, according to Equifax Canada's own newsroom release on its Q2 2026 Market Pulse figures, published this month.

The numbers are specific: 70.9% of first-time homebuyer mortgages nationally were joint in the second quarter of 2026, up from 57.6% back in 2016. That is not a one-quarter blip — it is a decade-long climb, and it means a solo first-time purchase has gone from roughly four in ten deals to fewer than three in ten.

Ontario and British Columbia stand out further inside that national number. Equifax found the two provinces carry roughly twice the share of joint mortgages where the two borrowers are 20 or more years apart in age, compared with the rest of the country — a pattern the company reads as a sign of parental or family support behind the purchase, not two peers buying together.

What a Joint Mortgage Actually Involves

A joint mortgage means exactly what it sounds like: two or more people apply together, and the lender qualifies the application on their combined income and combined debt obligations rather than one person's alone. That combined view is usually the whole reason to do it — it can turn a purchase that doesn't work on one income into one that does.

It is not the same thing as a guarantor arrangement, where a second person backs the mortgage without necessarily going on title or living in the home. A joint borrower is typically on both the mortgage and the title, with an ownership stake in the property. The distinction matters for tax, for estate planning and for what happens if the arrangement ever needs to be unwound — our downloadable guide at First Home Hub's parent-assisted qualifying section walks through the practical difference in more detail.

What doesn't change with either structure: every person named on the mortgage is on the hook for the full balance, not a proportional slice of it. If one co-borrower stops paying, the lender can pursue any or all of the others for the entire outstanding amount. A joint mortgage is a shared full liability, not a shared partial one.

Why This Is Happening Now

Equifax's own explanation ties the trend directly to affordability. Rebecca Oakes, vice-president of advanced analytics at Equifax Canada, pointed to several years of elevated borrowing costs, renewal payment shocks and higher living costs squeezing what a single income can qualify for — pushing more first-time buyers toward a second name on the application to close the gap.

That reading lines up with what a Waterloo Region or southwestern Ontario buyer is actually up against: home prices that outpaced income growth for years, a stress test that has to be cleared on the combined household picture, and closing costs that land on top of a down payment already stretched thin. A parent or sibling co-signing, or a couple buying with one partner's family backing the application, is often the difference between qualifying this year and waiting several more.

What to Work Through Before Adding a Co-Borrower

None of this is a reason to avoid a joint mortgage — for a lot of Ontario households right now, it's the realistic path to ownership. It is a reason to go in with the mechanics worked out ahead of time, not discovered later.

• Confirm whether the co-borrower goes on title, and in what ownership share — this is a legal question, not a mortgage one, and worth a real estate lawyer's input.
• Check your own credit report and your co-borrower's together, and use our Mortgage Calculators to see how the qualifying math changes with combined income and combined debt.
• Agree in writing, separately from the mortgage documents, on what happens if one person wants out, stops contributing, or the relationship changes — a co-ownership agreement is the tool for this, and it costs far less up front than resolving a dispute later.
• Understand that a missed payment shows up on every co-borrower's credit file, not just the one who missed it.
• Ask how a straight renewal is handled if a co-borrower's situation changes by the time the term is up — a lender doesn't automatically re-run the stress test at renewal the way it does when you switch lenders, which our Mortgage Renewal page covers in full.

The written agreement is the piece people skip most often, usually because the mortgage paperwork already feels like enough documents to sign. It's a conversation worth having with a lawyer before the closing date rather than after a disagreement — our Collective network includes one who can be brought in for exactly this.