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Guides · Canada · 2026

Co-Buying a Home in Canada

Lenders commonly allow 2 to 4 borrowers on one mortgage, with no single maximum. The lender adds every borrower's income and debts, then qualifies one stress-test payment. Title is joint tenancy (equal shares, survivorship) or tenants in common (unequal shares allowed). Each buyer who still qualifies as a first-time buyer keeps their own FHSA and Home Buyers' Plan room.

Source: Financial Consumer Agency of Canada

Reviewed by Scott Dillingham · Licensed mortgage agent with Mortgage Architects Inc. (FSRA #12728), Level 2 (Ontario) · Updated

How many people can be on a mortgage

Lenders commonly allow 2 to 4 borrowers on one note. That is a common underwriting practice, not a statute with a hard maximum. Every person on the application is underwritten. More incomes can help. More debts, and the lower credit score, can hurt. Confirm the lender’s own cap before you offer.

  • 2 borrowers is the usual couple or pair of buyers
  • 3 or 4 borrowers are possible when the lender accepts every name on the note
  • Someone who is not on the mortgage is not qualified and is not liable for it

Related: Joint mortgage in Canada

How lenders qualify co-buyers

The lender adds the borrowers’ gross incomes and adds their monthly debts, then tests one mortgage payment at the stress-test rate: the contract rate plus 2 percentage points, or 5.25%, whichever is higher. Housing costs use a 39% GDS cap and all debts use a 44% TDS cap, the same limits as the affordability calculator. Half of condo fees count.

  • One stress-test payment, not one payment per borrower
  • GDS is 39% of gross income. TDS is 44%
  • The guide chapter says lenders price from the lower credit score

Related: Affordability calculator

Joint tenancy vs tenants in common

Joint tenancy is equal shares with a right of survivorship. Tenants in common can be unequal, and a deceased owner’s share passes by will instead of automatically to the other owners. Friends, siblings, and parent-and-child purchases usually fit tenants in common. A lawyer should register the structure you actually want.

  • Joint tenancy: equal shares, survivorship
  • Tenants in common: unequal shares are allowed, no survivorship
  • The co-buying chapter walks through both, including the four unities of joint tenancy

Related: Buying with a friend, partner, or family — full chapter

Programs each buyer keeps

FHSA and HBP limits attach to the person, not the house. An eligible first-time buyer keeps their own FHSA ($8,000 a year, $40,000 lifetime) and their own HBP withdrawal room ($60,000). The home buyers’ amount is the $1,500 credit already stated on the HBP and incentives pages. If only one of you is a first-time buyer, the other does not get a second copy of your room, and you do not lose yours.

Related: Only one of you is a first-time buyer?

The co-ownership agreement

Write down ownership shares, who paid the deposit, how monthly costs are split, how repairs are approved, how someone exits, what happens on death or a breakup, and how disputes are resolved. That is a co-ownership agreement. It is not a substitute for title or for the mortgage. Each buyer should have a lawyer review it.

Related: Co-ownership agreement checklist

When someone wants out

A buyout is a new transaction. The person who stays needs the lender to rewrite the mortgage, and a lawyer has to transfer title. The departing owner does not drop off the note because everyone agreed at the kitchen table. Run the remaining balance and the buyout as one new mortgage before you promise a number.

Related: Buying out a co-owner

Frequently asked questions

How many people can be on a mortgage in Canada?
Lenders commonly allow 2 to 4 borrowers on one mortgage. The guide does not state a legal maximum. The lender still has to accept every borrower, and some lenders cap the file. Ask before you offer.
How do lenders qualify people who buy together?
They add incomes and add debts, then test one payment at the stress-test rate (contract rate plus 2 percentage points, or 5.25%, whichever is higher). The affordability calculator caps housing at 39% of gross income (GDS) and all debts at 44% (TDS). The co-buying chapter says pricing uses the lower credit score.
What is the difference between joint tenancy and tenants in common?
Joint tenancy is equal ownership with survivorship. Tenants in common can be unequal, and a share passes by will. The co-buying chapter is the full walk-through, including when friends or family should avoid joint tenancy.
Does each buyer keep their own FHSA and HBP?
Yes, if that buyer still qualifies as a first-time buyer. FHSA room is $8,000 a year and $40,000 lifetime. HBP room is $60,000 per person. Co-buying does not merge those rooms or create an extra one.
What should a co-ownership agreement cover?
Ownership shares, unequal deposits, monthly costs, repairs, an exit, death or a breakup, and disputes. It is an education checklist, not a law-firm template. Have a lawyer paper it.
What happens when one co-owner wants out?
The person staying has to qualify for the remaining mortgage plus any buyout the agreement requires. A lawyer transfers title and the lender has to paper the new loan. It is not automatic.

Financing a co-purchase — talk to LendCity

Co-ownership changes qualification, title, and registered-account rules. Align financing before you offer.

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