A 2026 Guide for Australian Investors
What Is Cross Collateralisation?
Cross-collateralisation happens when a lender uses more than one property as security for a single loan or group of loans. Instead of each property backing its own individual loan, the lender links two or more properties under one financial structure – typically with the same lender.
Why Does Loan Structure Matter More in 2026?
The 2026 lending environment has added new reasons for property investors to think carefully about how their loans are structured. From 1 February 2026, APRA introduced debt-to-income (DTI) limits capping high-DTI lending at 20 per cent of new loans – with specific limits applied separately to investor and owner-occupier portfolios.
Cross Collateralisation vs Standalone Loans: How Do They Compare?
| Cross Collateralisation | Standalone Loan Structure | |
| Security arrangement | Multiple properties linked under one lender | Each property secured against its own loan |
| Deposit required | May be zero – equity used across properties | Deposit or equity release required per purchase |
| Lender choice | Locked to one lender for all linked properties | Each property can sit with a different lender |
| Refinancing flexibility | Requires lender approval to change any part | Each loan can be refinanced independently |
| Selling a property | Lender may require proceeds to pay down linked loans first | Sale proceeds are yours to manage |
| Negotiating power | Reduced – you can’t easily move your portfolio | Stronger – each lender competes for your business |
| Borrowing capacity over time | Can tighten as portfolio grows with one lender | More flexibility to spread across lenders |
| Valuation costs | All properties revalued together on any change | Only the relevant property revalued |
| Complexity to unwind | Time consuming and potentially costly | Straightforward – loans are already separate |
Why Some Investors Use This Strategy
Used in the right circumstances, cross-collateralisation can open doors that might otherwise be closed:
Borrow without a cash deposit. If you have sufficient equity in your existing property, the lender may structure the new purchase without requiring a cash deposit. For investors looking to act quickly in a competitive market, this removes the savings constraint.
Avoid Lenders Mortgage Insurance (LMI). LMI is charged when your Loan-to-Value Ratio (LVR) exceeds 80 per cent. By using equity from your existing property to keep the combined LVR across both properties under 80 per cent, you can avoid this cost – which on a $600,000 investment property purchase with a 10 per cent deposit can run to $10,000 or more.
Fund purchase costs. Stamp duty, legal fees, and other costs add up. In Queensland, for example, stamp duty on a $700,000 investment property is approximately $24,500 for an investor. Cross collateralisation can allow these costs to be folded into the loan structure rather than paid from savings.
Simplify administration (in the short term). Having all loans with one lender means one relationship, one set of statements, and one point of contact. For investors early in their journey with no immediate plans to sell or refinance, this can feel more manageable.
The Trade-Offs to Be Aware Of
You give the lender significant control. When your properties are linked, your lender effectively holds security over your entire portfolio. If you want to sell one property, the lender can require you to use the sale proceeds to reduce the combined debt before releasing the property. What you do with your own assets becomes subject to their approval.
Refinancing becomes complicated. If a competitor lender offers a better rate or product, moving one loan means untangling the entire structure. In practice, investors in cross-collateralised structures often stay with their lender longer than is financially optimal – not by choice, but because the cost and complexity of moving is prohibitive.
Your borrowing capacity can tighten. As your portfolio grows with a single lender, you reach that lender’s exposure limits faster. Spreading loans across lenders means each lender sees a smaller portion of your total debt. This is one of the most practical reasons experienced investors avoid cross-collateralisation.
Revaluation costs add up. With linked properties, the lender revalues all properties in the structure whenever there is a significant change – a new purchase, a sale, a refinance. Professional valuations typically cost $300-$600 each. For a portfolio of three or four properties, this adds up quickly.
The structure is hard to unwind. Uncrossing a portfolio requires refinancing one or more loans, co-ordinating valuations, and in some cases negotiating break costs on fixed-rate components. It is possible – but it is far easier to structure correctly from the start than to fix it later.
How the 80/20 Structure Works as an Alternative
One of the most effective ways to use equity without cross-collateralising is the 80/20 split structure. We have covered this in detail here, but the core concept is this:
Instead of linking both properties under one lender, you release equity from your existing property as a standalone equity loan, then use that as the deposit for a separate loan on the new property – often with a different lender.
Here is how it works using the same $800,000 purchase scenario:
- Your existing property is worth $1,200,000. You owe $400,000. Your usable equity (to 80 per cent LVR) is $560,000.
- You release $200,000 from your existing property as an equity loan. This sits against your existing property only.
- You use that $200,000 as a deposit (25 per cent) on the $800,000 new purchase.
- You take out a separate $600,000 loan against the new property at 75 per cent LVR.
- Both loans are below 80 per cent LVR. No LMI applies. No cross collateralisation.
The result: each property is secured against its own loan. You have borrowed 100 per cent of the purchase price without a cash deposit, without LMI, and without giving any lender control over both properties.
When Does Cross Collateralisation Actually Make Sense?
It is not universally the wrong choice. At Borro, we assess the full picture before recommending a structure. Cross-collateralisation may be appropriate when:
- You have strong equity in your existing property and a clear, limited purpose for the new purchase
- You are not planning to sell either property in the short to medium term
- You are not planning to build a multi-property portfolio over time
- You want to avoid LMI and the equity split structure does not achieve this cleanly
- You have been through the alternatives with your broker and cross collateralisation genuinely produces a better outcome for your specific situation
We will always compare this with the standalone structure before recommending an approach. The property investment terminology and mechanics can be complex, but the decision should come down to what gives you the most flexibility over the full life of your investment – not just what gets the deal done today.
A Note on the 2026 Lending Environment
With APRA’s DTI limits now in force and investor lending volumes at decade highs, lender appetite and policy settings are shifting. According to Cotality research director Tim Lawless, the DTI limits are expected to have a more meaningful impact on investors who are already stretched on servicing, particularly those holding multiple properties with a single lender.
The key practical implication: investors in cross-collateralised structures with one lender may find that lender’s willingness to extend additional credit becomes more constrained as their debt-to-income ratio rises. Investors with standalone loans spread across multiple lenders maintain more flexibility to continue growing their portfolio.
Use our loan repayment calculator to model repayments across different loan structures before speaking to your broker.
Frequently Asked Questions
Cross-collateralisation links two or more properties under a single loan structure with one lender, so both act as security for each other’s debt. Releasing equity involves accessing the built-up value in one property as a standalone loan, which you then use as a deposit for a separate purchase – keeping the two properties and their loans independent. Releasing equity via the 80/20 structure is typically the preferred approach for investors building a portfolio, as it preserves flexibility and avoids giving one lender control over multiple properties.
Yes – in many cases. The 80/20 equity release structure achieves the same outcome: each loan stays under 80 per cent LVR, so no LMI applies, without linking the properties together. Whether this is achievable depends on how much usable equity you have in your existing property. Your broker will calculate this based on current valuations and your existing loan balance.
From 1 February 2026, lenders can only issue up to 20 per cent of new investor loans at a debt-to-income ratio of six or more. For most borrowers this limit is not immediately binding – APRA data shows only around 10 per cent of new investor loans exceeded the threshold at the time of the announcement. However, investors with multiple properties concentrated with a single lender may find that lender reaches its DTI exposure limits faster. Spreading loans across lenders helps maintain access to credit as a portfolio grows.
When you sell a property that is linked under a cross-collateralised structure, your lender has the right to use the sale proceeds to reduce the combined debt across the structure before releasing the security. This means you may not receive the net sale proceeds freely – the lender can require part or all of them to be applied to the remaining loan, or require you to reapply under revised lending conditions. This is one of the most cited reasons experienced investors avoid cross collateralisation.
Yes, but it requires refinancing one or more loans, arranging new valuations on all linked properties, and potentially dealing with break costs if any loan component is on a fixed rate. The process is manageable but time consuming and has associated costs. It is significantly easier to set up the correct structure from the start. If you are currently in a cross-collateralised structure and want to assess your options, book a free chat with the Borro team.
Get in touch with Borro
A cross collateral loan strategy can work – but the default position for most investors building a portfolio over time is to keep loans separate and preserve your flexibility. If you are considering using equity to buy your next property, talk to one of our brokers about the structure that gives you the best outcome, not just for this purchase, but for where you want to be in five years.
Book a free chat with the Borro team today to find out if this strategy could work for you.
This article is general information only and does not constitute financial advice. Your personal circumstances may differ. Talk to your broker about your specific situation.
