Why co-buying is growing in Canada
With average home prices above $650,000 nationally — and detached homes exceeding $1 million in Toronto and Vancouver — roughly 1 in 4 first-time buyers now purchases with someone other than a spouse. Combining two incomes, down payments, and closing costs makes homeownership reachable years sooner.
Legal ownership: joint tenancy vs tenants in common
Joint tenancy means equal shares with automatic survivorship — common for married couples. Tenants in common allows unequal shares (60/40, 70/30) and each owner can leave their share via will — better for friends, siblings, and parent-child arrangements. Discuss structure with a real estate lawyer before closing.
Government programs when co-buying
Each co-buyer who qualifies as a first-time buyer can use their own FHSA ($40,000), HBP ($60,000), and HBTC ($1,500). A couple of first-time buyers could access up to $200,000 from registered accounts. If one buyer is not a first-time buyer, the other still claims their own programs — land transfer rebates are typically prorated by ownership share.
Protect yourself with a co-ownership agreement
Before closing, hire a lawyer to draft a co-ownership agreement covering ownership percentages, cost sharing, exit scenarios (right of first refusal, buyout terms), default remedies, and dispute resolution. Expect $1,500–$3,000 — far less than a $50,000 legal dispute later.
Three or four buyers on one mortgage
Yes — three or four people can buy a house together in Canada if a lender will put every borrower on the note. More incomes help GDS/TDS; more debts and the lowest credit score work against you. Unequal cash (for example 40/30/20/10) almost always means tenants in common plus a written agreement. Some lenders cap the number of borrowers — confirm before you write an offer.
Frequently asked questions
- Can 4 people buy a house together in Canada?
- Yes. Four people can hold title and a mortgage together if the lender accepts the file. Most lenders will underwrite every borrower on the note. Combined GDS/TDS and the stress test still apply to the household. Use tenants in common when ownership shares are unequal, and sign a co-ownership agreement before closing.
- Can you split a mortgage between two people?
- Yes. Two people can split a mortgage as co-borrowers (both on title and the note) or one can co-sign (on the note only). Co-borrowers share equity and liability. A co-signer is fully liable but owns no share unless they are also on title. Lenders use the lower credit score for pricing.
- Can two first-time buyers each use their own FHSA?
- Yes. Each co-buyer who qualifies as a first-time buyer can contribute to and withdraw from their own FHSA independently. Two first-time buyers can combine up to $80,000 from FHSAs alone, plus up to $120,000 from RRSP HBP.
- What is the difference between a co-borrower and a co-signer?
- A co-borrower is on both the mortgage and property title — they build equity and share liability. A co-signer is on the mortgage only, helps you qualify, but owns no part of the home and is fully liable if you default.
- Do I need a co-ownership agreement when buying with a partner?
- Yes — even for romantic partners, especially common-law couples who lack automatic property division rights in some provinces. The agreement covers exit scenarios, cost sharing, buyout terms, and dispute resolution.
- How does co-buying affect mortgage qualification?
- Lenders combine both incomes but also both debts. They use the lower credit score for rate pricing. Combined GDS is capped at 32% and TDS at 44% of gross household income, calculated at the stress-test qualifying rate.