A loan split divides one loan into separate accounts under the same security, each with its own balance, repayment type and purpose. Property investors use splits to keep debt for different purposes apart, so each portion can be traced, repaid on its own terms and read clearly by the next lender.
On episode 108 of the podcast, Dion shared an example of an investor whose borrowing capacity was held back by a split she did not fully understand. This article explains what splits are for and how to check your own.
Why split a loan at all?
Because one loan can only be one thing. A single account has one balance, one repayment type and, on paper, one purpose. The moment it is used for two things, a home and an investment deposit for example, those two purposes are mixed in one number.
| One blended loan | Split by purpose | |
|---|---|---|
| Tracing | Hard to show what was used for what | Each purpose has its own account |
| Repayment type | One setting for everything | Chosen per split |
| Fixed or variable | One choice for the whole debt | Can differ between splits |
| Records for your accountant | Apportioning needed | Clean statements per purpose |
| The next lender | Reads one large commitment | Reads what each debt is for |
What three questions should every split answer?
Dion reduces the review to three questions for each split.
- Purpose. What was this money used for, and is the split recorded that way?
- Repayment type. Is it principal and interest or interest-only, and does that still suit its job in the portfolio?
- Balance. Does the balance reflect the debt that is actually needed against that purpose?
A split that cannot answer all three is one a lender may read differently from how you intended.
Why does repayment type belong in the review?
Because it is the setting investors most often choose once and never revisit. According to the Reserve Bank, around 40 per cent of new investor lending since 2018 has been interest-only (RBA Bulletin, May 2026). Each of those loans has an expiry date, and each is assessed by the next lender on a principal and interest basis over the remaining term.
Splits let the repayment type follow the purpose: often principal and interest on home debt and interest-only on investment debt. Which is right depends on the loan and the plan. See interest-only vs principal and interest.
How can a split restrict borrowing capacity?
A lender assessing your next application reads the structure as it stands, not as it was intended. Splits work against you when:
- The purpose has drifted. A split set up for one use has been redrawn for another.
- The repayment type no longer fits. An interest-only period has expired, or a short remaining term is inflating the assessed repayment.
- The balance or limit is larger than needed. Unused limits can be assessed as if fully drawn.
- Released equity was never separated. Funds for an investment sit inside the home loan.
In the example from the episode, working through the three questions for each loan allowed the structure to be corrected, and approximately $250,000 to $300,000 in additional borrowing capacity was identified for that investor.
Real client engagement. Individual circumstances differ; outcomes depend on assessment and lender criteria.
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How should equity be released?
Into its own split. When equity is drawn from a property to fund a deposit, the cleanest structure is a separate account for that amount, used only for that purpose. The debt for the new purchase is then visible from the first day.
This is also where splits and securities meet. A split separates debt by purpose. It does not separate the properties securing that debt. If several properties secure the same lending they are crossed, which is a different problem with a different fix. See cross-securing.
What does a split not do?
- It does not change your tax position by itself. Deductibility follows what borrowed money was used for. Splits make that easier to show. How it applies to you is a question for your accountant.
- It does not increase capacity by itself. It removes structure that was reducing it.
- It is not free to change. Restructuring can involve fees, a new assessment and, on fixed loans, break costs.
How do you review your own splits?
- List every loan account, with its balance, limit, repayment type and expiry dates.
- Write the purpose beside each one. If you cannot, that is the first finding.
- Note which property secures each account.
- Mark anything mixed, expired or larger than it needs to be.
- Take the list to your accountant and your finance strategist before the next purchase, not during it.
Common questions
What is a loan split?
A loan split divides one loan into separate accounts under the same security. Each split has its own balance, repayment type and purpose. Each can also be fixed or variable independently of the others.
Why do property investors split their loans?
To keep debt for different purposes separate. A split for each purpose makes the debt easier to trace, lets the repayment type suit the job of that debt and gives the next lender a clear picture. How any of it is treated for tax is a question for your accountant.
Can a loan split reduce my borrowing capacity?
A poorly set up split can. If the purpose, repayment type or balance no longer matches what the loan is doing, a lender may assess a higher commitment than necessary. Reviewing and correcting the structure can remove that drag, subject to assessment.
Is splitting a loan the same as uncrossing securities?
No. A split separates debt by purpose within a loan. Uncrossing separates the properties that secure the lending, so each property stands behind its own loan. They solve different problems and are often reviewed together.
The takeaway
A split is only useful while it still describes the debt inside it. Purpose, repayment type and balance: three questions, asked of every account, before the next application.
If you want your structure reviewed against your next purchase, Book a Call. Fifteen minutes with the team will tell you whether your splits are working for the portfolio or against it.
This article is general information only. It does not take your individual circumstances into account and is not credit, tax, legal or financial product advice. All lending is subject to individual assessment and lender criteria. Speak with your own advisers before acting. The tax treatment of interest and loan purpose is a matter for your accountant.