What Happens to a Joint Mortgage When You Separate? (Australia 2026)

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What Happens to a Joint Mortgage When You Separate? (Australia 2026)

Separation is one of the most common reasons Australians need to resolve a joint mortgage. Both parties remain legally liable for the full loan until it is formally dealt with — making it important to understand your options and act promptly.

The Key Point: Separation Doesn’t Change the Mortgage

When you separate, your joint mortgage obligations do not automatically change. Both parties remain jointly and severally liable for the full loan regardless of who lives in the property, who is “keeping” the property, or what you have agreed between yourselves.

The lender’s rights are unaffected by your personal separation. If repayments are missed — for any reason — both borrowers’ credit files are affected.

Your Options for the Property

Option 1: One Partner Buys Out the Other

The most common resolution. One partner retains the property and the departing partner is bought out of their equity share.

What this requires:

  • Agreeing on the property’s value (usually via an independent valuation)
  • The remaining partner refinancing the loan into their sole name
  • The lender assessing the remaining partner’s ability to service the full loan alone
  • A transfer of equity registered with the state land registry

Stamp duty: In most Australian states, transfer of equity following separation (under a Binding Financial Agreement or Consent Order) is exempt from stamp duty. Seek legal advice to ensure the transfer is structured correctly.

CGT: Where the property was the main residence throughout ownership, the main residence CGT exemption applies. Family law orders can provide CGT rollover relief in some circumstances.

→ See Removing Someone From a Mortgage — Transfer of Equity

Option 2: Sell the Property and Split the Proceeds

If neither partner can service the loan alone, or if both parties prefer a clean break, selling is the most straightforward resolution.

Process:

  1. Agree to sell (or have a court order it)
  2. Engage a real estate agent and sell at market
  3. From sale proceeds: repay the outstanding mortgage, real estate agent fees, conveyancing fees
  4. Remaining equity is split per the agreed (or court-ordered) arrangement

Both parties remain responsible for the mortgage during the sale period — make sure repayments continue to avoid credit damage.

Option 3: Continue Co-owning Temporarily

In some situations — particularly where children are in school age or the market is poor — separated couples choose to retain the property jointly for a period before selling.

Risks:

  • Continued financial entanglement with an ex-partner
  • Difficulty obtaining other credit while the joint mortgage is on your file
  • Disputes about maintenance, costs, and eventual sale

If continuing co-ownership is temporary, get a written agreement covering repayments, maintenance, and the timeline for resolution.

Option 4: Court Order (Family Court)

If parties cannot agree, either can apply to the Federal Circuit and Family Court of Australia (FCFCA) for property settlement orders. The court can order:

  • A sale of the property
  • A transfer to one party
  • A buyout arrangement

Court proceedings are costly and slow — most parties benefit from attempting mediation or collaborative legal processes first.

The Family Law Process

For married couples: the Family Law Act 1975 governs property settlement. You generally have 12 months from the date of divorce to apply for property settlement.

For de facto couples: similar provisions apply under Part VIIIAB of the Family Law Act. The time limit is 2 years from the date of separation.

Binding Financial Agreement (BFA): A private agreement (not requiring court approval) that documents the agreed property settlement. Must be prepared by a solicitor with independent legal advice for both parties.

Consent Orders: Property settlement agreed between parties but approved by the court — provides court-order protection (including stamp duty and CGT exemptions in most states).

Continuing Repayments During Separation

Both parties remain responsible for the mortgage regardless of who lives in the property. In practice:

  • The party remaining in the property often continues making repayments
  • The departing party is at risk if the remaining party defaults — both credit files are affected
  • Consider a formal written agreement about who pays what during the separation period

If the property will be sold — continue making repayments to avoid default, missed payment listings on credit files, and additional interest costs.

Frequently Asked Questions

Can I force a sale if my ex-partner won’t agree?

As tenants in common, you can apply to a court for a partition order — which effectively forces a sale. This is a last resort and involves legal costs. As joint tenants, the process is similar. A family law application is more common for married and de facto couples.

Can I stop making repayments once I move out?

No — you remain legally liable for the full loan until formally removed. Stopping repayments will damage your credit file and may expose you to lender enforcement action.

Does the lender need to be involved in our property settlement?

The lender’s consent is required for any changes to the mortgage (removing a borrower, refinancing). However, the lender does not need to be party to your financial agreement or consent orders.

This article provides general information about joint mortgages and separation in Australia. Family law property settlements are complex — seek independent legal advice from a family law solicitor. For mortgage advice during separation, find a licensed broker through MoneySmart.