Separating from a partner when you have a joint mortgage is one of the more complex financial situations you can face. The decisions made during property settlement have lasting financial consequences. This guide covers the main options and processes.
Selling is the cleanest option when neither party can afford the property alone, or when both want a complete financial separation. Both parties must agree on selling — if one refuses, the other can apply to the Family Court for an order compelling the sale.
Net proceeds (sale price minus mortgage payout, agent fees, and legal costs) are then divided according to the property settlement agreement. This is typically the point where the parties need lawyers or mediators to establish the split percentage.
If one party wants to keep the property, the process is:
Example: Property value $800,000, outstanding mortgage $500,000, net equity $300,000. Equal 50/50 split means the staying party owes the departing party $150,000. The staying party must refinance a $650,000 loan on their sole income.
The critical gate is serviceability. The lender must approve the new sole borrower on their income alone. If they cannot demonstrate they can service the full refinanced loan, the refinance will be declined and selling may become the only viable path.
You cannot remove a name from a joint mortgage by simply requesting it. The lender agreed to lend to both parties jointly — removing one requires re-assessing the remaining borrower's ability to service the full loan alone. This is done through a refinance, either with the current lender or with a new one. The departing party remains legally liable for the mortgage until the refinance is complete, meaning missed repayments damage both credit files regardless of the separation.
Property settlements in Australia are handled by the Federal Circuit and Family Court. The court considers financial contributions (deposits, repayments, renovations), non-financial contributions (homemaking, raising children), and each party's future needs (primary carer role, health, earning capacity). You do not need to go to court if you can agree — Consent Orders (filed with the court for approval) are enforceable without a hearing and are generally preferred.
A Binding Financial Agreement (BFA), sometimes called a "financial agreement" or colloquially a "prenup", can also formalise property settlement. Unlike Consent Orders, BFAs are not court-approved — they rely on both parties having received independent legal advice. They are occasionally set aside by courts if procedural requirements were not followed, so Consent Orders are generally considered the more reliable option for real estate settlements.
After separation, your borrowing capacity is assessed on individual income and expenses. Child support you pay reduces your assessed income; child support you receive may be counted if you can demonstrate 12 months of consistent receipt (typically at 80% by most lenders). Net childcare costs reduce borrowing capacity by roughly $3,000–$6,000 per child per month if attending 4–5 days per week after the Child Care Subsidy.
Do not stop making repayments during a dispute. Even if your partner has left and is being uncooperative, missing repayments creates defaults on both credit files. Continue paying, document every payment, and address the cost-sharing through the legal process.
What it costs to refinance to a new lender as a sole borrower.
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