Home Loans to Purchase a Larger Home for Growing Families

Borrowing Capacity When You Already Own a Property

Your borrowing capacity shrinks when you apply for a second home loan while still holding your current property. Lenders assess your serviceability using your existing mortgage repayments, household expenses, and the new loan you're applying for, all at the same time. The rental income from your current home, if you're planning to lease it out, is only counted at 80 per cent of market rent to allow for vacancies and maintenance. That reduces the amount you can borrow for the larger property.

Consider a scenario where you currently owe $450,000 on a home worth $750,000 in a Brisbane suburb, with repayments of around $2,800 per month. You're looking to purchase a four-bedroom home for $900,000. If your current property could rent for $650 per week, lenders will assess $520 per week as income, which offsets some but not all of your existing loan commitment. Your salary as an aged care pharmacist supports the borrowing, but the overlap period where both loans are active will be the main constraint. Structuring the purchase to minimise that overlap, or accepting a slightly smaller loan and contributing more deposit, can make the difference between approval and decline.

Using Equity Without Selling First

You can access the equity in your current home to fund the deposit and costs for the new property without selling. Equity is the portion of your home you own outright, calculated as the property value minus the outstanding loan balance. Lenders allow you to borrow against that equity, usually up to 80 per cent of the property value without LMI, or higher if you're willing to pay the premium.

Using the previous scenario, a property valued at $750,000 with $450,000 owing leaves $300,000 in equity. At 80 per cent LVR, you could borrow up to $600,000 against that property, which means an additional $150,000 could be released for the deposit on the larger home. That amount covers a 15 per cent deposit on a $900,000 purchase plus settlement costs. The equity is accessed by refinancing your current loan or applying for a top-up with your existing lender. You'll hold two loans at the same time until you decide whether to sell the original property or keep it as an investment. This structure is common when upsizing and is one of the clearest uses of equity release.

Bridging Finance for Overlapping Settlements

Bridging finance covers the gap when you've committed to purchasing the new property but haven't yet settled the sale of your current home. The bridging loan is secured against both properties and is repaid in full once your original home sells. Interest is typically capitalised during the bridge period, which means it's added to the loan balance rather than paid monthly, reducing the cash flow pressure during the transition.

This option is most relevant when you've already found a buyer for your current home and both contracts are exchanged, but settlement dates don't align. Bridging periods usually run between one and six months. Lenders assess your ability to service both loans simultaneously, even though one is temporary, and will require evidence of the sale contract for your current property. Some lenders offer peak debt bridging, where the full balance of both properties is funded for a short period, while others require you to contribute the deposit from savings or released equity. You can find more detail on structure and timing through our bridging loans page.

Fixed Rate, Variable Rate, or Split When Upsizing

The loan structure you choose affects both repayment predictability and flexibility during the transition. A fixed rate locks your repayments for a set term, usually between one and five years, which can help with budgeting when managing two properties or a larger single loan. A variable rate allows you to make extra repayments without penalty and gives you access to features like offset accounts, which reduce the interest charged on your loan balance. A split loan combines both, giving you partial certainty on repayments while retaining flexibility on the variable portion.

If you're planning to rent out your current property after moving, a variable or split structure on that loan allows you to make lump sum repayments from rental income or salary without incurring break costs. For the new owner-occupied loan, a split structure can work well if you want to protect part of your repayment from rate rises while keeping an offset account linked to the variable portion. Current variable rates sit higher than fixed rates for many lenders, but that margin has narrowed over the past year. The decision depends more on your cash flow position and whether you value access to funds over rate protection.

Offset Accounts and Managing Two Loans

An offset account is a transaction account linked to your home loan that reduces the interest charged on your loan balance. If you have $40,000 sitting in an offset account and a loan balance of $600,000, you only pay interest on $560,000. The account earns no interest itself, but the interest saving is typically higher than any transaction account rate, and the saving is not taxable.

When holding two properties, offset accounts help you manage surplus cash flow without locking funds into the loan. If your current property becomes an investment and generates rental income, parking that income in an offset linked to your new owner-occupied loan reduces the non-deductible interest you're paying. Interest on an investment loan is tax deductible, so you want to maximise that balance, while interest on your owner-occupied loan is not, so you want to minimise it. Structuring your loans with separate offset accounts for each property gives you control over where surplus funds are applied. You can read more about this setup on our page covering home loan features.

Retaining Your Current Property as an Investment

Keeping your current home as an investment rather than selling can support long-term wealth building, but it changes your tax position and borrowing structure. Once the property is rented out, the interest on that loan becomes tax deductible, along with other expenses such as rates, insurance, maintenance, and property management fees. Rental income is assessable, but deductions often exceed income in the early years, creating a tax loss that reduces your overall taxable income.

From a lending perspective, retaining the property means both loans remain active. Lenders assess rental income at 80 per cent when calculating serviceability, as noted earlier, so your borrowing capacity for the new home will be lower than if you sold and cleared the debt. You'll also need to maintain both repayments from your salary and rental income combined. In our experience, this structure works well for aged care pharmacists with stable employment income and modest existing debt, but it requires a clear understanding of cash flow during the first 12 months. The same structure is covered in more detail on our investment loans page.

Pre-Approval and Timing Your Purchase

Pre-approval confirms how much you can borrow before you start looking for a property. It's based on your current financial position, including income, expenses, existing debts, and the equity available in your current home. Pre-approval is usually valid for three to six months and gives you a clear price range when attending inspections or making offers.

When upsizing, pre-approval becomes more important because your borrowing capacity depends on assumptions about rental income, settlement timing, and whether you're selling or retaining your current property. Getting pre-approval early clarifies whether you need to sell first, use bridging finance, or rely on equity release. It also speeds up the formal application once you've found a property, which can be the difference between securing a home in a competitive market and missing out. Lenders reassess your position at formal application, so any changes to income, expenses, or debt between pre-approval and settlement need to be disclosed. More information on how pre-approval works is available on our loan pre-approval page.

Interest-Only Repayments During Transition

Interest-only repayments can reduce your monthly outgoings during the period when you're holding two properties. Instead of paying both principal and interest, you only pay the interest component, which lowers the repayment amount. This structure is commonly used on investment loans, but it can also apply to owner-occupied loans for a limited period, usually up to five years.

If you're keeping your current property as an investment, switching that loan to interest-only frees up cash flow to support the new owner-occupied loan. The principal balance doesn't reduce during the interest-only period, but the lower repayment can make the transition more manageable. Once you've settled into the new property and stabilised your income and expenses, you can revert to principal and interest repayments. Some lenders allow you to switch between repayment types without refinancing, while others require a formal variation. The option is worth considering if cash flow is tight during the first 12 months, and you can explore the structure further on our interest-only loans page.

Stamp Duty and Upfront Costs When Buying Again

Stamp duty is a state-based tax on property transfers and is one of the largest upfront costs when purchasing a home. The amount depends on the property value and the state or territory where you're buying. First home buyer concessions don't apply when you already own property, so you'll pay the full rate. In New South Wales, stamp duty on a $900,000 property is around $34,000. In Victoria, it's approximately $48,000. In Queensland, it's roughly $31,000.

Other costs include loan application fees, conveyancing, building and pest inspections, and any LMI if your deposit is below 20 per cent. These add up to between 3 and 5 per cent of the purchase price. If you're borrowing the deposit using equity from your current home, you'll need to factor these costs into the total amount you release. Underestimating upfront costs is one of the most common reasons buyers face shortfalls at settlement, particularly when they've assumed the deposit alone will be sufficient.

Call one of our team or book an appointment at a time that works for you. We'll review your current position, calculate how much equity you can access, confirm your borrowing capacity across both properties, and structure the lending to support the move without unnecessary cost or delay.

Frequently Asked Questions