Executive Summary: The "Joint Liability" Trap
Before you sign anything, you must understand one banking rule: Joint and Several Liability.
Even if you only own 50% of the house, the bank holds you 100% responsible for the debt.
If your friend loses their job and stops paying their half of the mortgage, the bank will not pursue them for 50%—they will pursue YOU for the full 100%.
Furthermore, when you go to buy your next home solo, most banks will calculate your servicing as if you hold the entire debt, drastically reducing your future borrowing capacity. This is why the legal structure matters.
Part 1: Joint Tenants vs. Tenants in Common
You will be asked to tick a box on the Transfer of Land document. Ticking the wrong box can have disastrous estate planning consequences.
Joint Tenants
Best for: Married Couples.
How it works: You own the property jointly. There are no "shares" (e.g., 50/50 doesn't exist).
The Kicker: The "Right of Survivorship." If you die, your interest automatically passes to the other owner. You cannot leave your share to your parents or siblings in your Will.
Tenants in Common
Best for: Friends, Siblings, Business Partners.
How it works: You own a specific share of the title (e.g., 50/50, 70/30, 99/1).
The Benefit: If you die, your share goes to whoever you name in your Will. It does not automatically go to your friend. This protects your family's inheritance.
Part 2: The "Co-Ownership Agreement"
Never buy with a friend based on a handshake. You need a legally binding Co-Ownership Agreement (or Minute of Agreement) drawn up by a solicitor.
This document is your "Pre-Nup" for the house. It must answer the "What Ifs":
- What if one person wants to sell? Does the other person have the "First Right of Refusal" to buy them out? How do we value the house?
- What if someone wants to move in? If one owner lives there and the other doesn't, does the occupier pay rent to the non-occupier?
- What happens if someone defaults? If you have to cover their mortgage payments, does that money become a loan to them?
Part 3: The "Split Loan" Structure
While you are Jointly Liable, you don't have to have a Joint Account.
We typically structure these loans as two separate loan accounts.
Loan A ($300k): In your name (Primary) and Friend's name (Guarantor).
Loan B ($300k): In Friend's name (Primary) and Your name (Guarantor).
This allows you to make extra repayments on your share of the debt without subsidizing your friend. You can also have separate offset accounts attached to your specific loan portion.
Part 4: The Exit Strategy
Friendships change. Partners change. Jobs change. You need a clear exit plan.
We recommend agreeing on a minimum timeframe (e.g., 5 years) where neither party can force a sale. This ensures you recover your Stamp Duty costs through capital growth.
After 5 years, the agreement should trigger a review: Sell, Refinance, or Hold.
Part 5: Frequently Asked Questions (FAQ)
Yes, but all applicants must be eligible. If you are a First Home Buyer but your friend has owned property before, you generally lose the Grant and the Stamp Duty concessions. You are assessed as a collective.
Yes. If you put in $100k deposit and your friend puts in $50k, we can structure the ownership as Tenants in Common (66% / 33%) to reflect the contribution. The loan repayments can also be split this way.
If you are Joint Tenants, the creditor can pursue the whole house. If you are Tenants in Common, they can usually only pursue your friend's share of the house. This offers you a layer of asset protection.
Conclusion: Get it in Writing
Co-ownership is a fantastic tool to unlock wealth, but it requires professional advice. We can handle the finance, and we can refer you to our preferred solicitors to draft the Co-Ownership Agreement.