A fixed rate on an investment loan locks in your interest cost for a set period, but the total cost of that certainty includes application fees, valuation charges, break costs if you exit early, and potentially higher ongoing rates compared to variable products.
For Bulimba investors adding a Queenslander or riverfront unit to their portfolio, the question is whether the certainty of a fixed rate justifies the additional cost structure, particularly when break fees can run into five figures if your circumstances or the property market shift before the fixed term ends.
Upfront Fees When You Fix an Investment Loan
Most lenders charge an application fee on investment loans, whether fixed or variable, ranging from $300 to $600 depending on the institution. Valuation costs sit separately, typically between $200 and $400 for a standard residential property in Bulimba, though waterfront or character homes may attract higher valuation fees due to the specialised assessment required.
Some lenders also apply a rate lock fee if you want to secure a fixed rate before settlement, particularly relevant when you are buying off the plan or managing a longer settlement period. Rate lock fees vary but generally sit around 0.15 per cent of the loan amount for a 90-day lock.
Lenders mortgage insurance becomes a cost factor when your deposit is below 20 per cent. For investment loans, LMI premiums are calculated on a higher risk weighting than owner-occupier loans, and the premium scales sharply as your loan-to-value ratio increases. At 90 per cent LVR on an investment property, LMI can add several thousand dollars to your upfront cost. The premium is usually capitalised into the loan rather than paid from your own funds, but it increases the total amount you are borrowing and therefore the interest you will pay over time.
How Fixed Rate Pricing Compares to Variable on Investment Loans
Fixed rates on investment loans are priced differently to variable rates and often sit higher, particularly for interest-only terms. Lenders price fixed rates based on wholesale funding costs and expected rate movements, not just current policy settings, so the margin between fixed and variable can widen or narrow depending on market conditions at the time you apply.
In our experience, the gap between a three-year fixed rate and a variable rate on an investment loan can range from 0.20 per cent to 0.80 per cent depending on the lender and the loan structure. That margin compounds over the fixed period and affects both your cashflow and the deductibility of your interest expense.
Consider an investor who borrows $600,000 on an interest-only basis to acquire a unit near Bulimba's Oxford Street precinct. If the variable rate sits at 6.20 per cent and the three-year fixed rate is offered at 6.50 per cent, the fixed option costs an additional $1,800 per year in interest. Over three years, that is $5,400 in additional deductible interest, which may be acceptable if the investor values certainty and expects rates to rise, but represents a tangible cost if rates fall or remain flat.
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Break Costs and How They Are Calculated
Break costs apply when you repay a fixed rate loan in full, or make a repayment above the allowable extra payment threshold, before the fixed term expires. The cost is calculated based on the difference between the rate you are paying and the rate the lender can now earn by reinvesting the funds for the remaining fixed period.
If market rates have fallen since you fixed, the lender faces a funding loss and passes that cost to you. If rates have risen, there is typically no break cost, and some lenders may apply a modest administration fee instead.
Break costs are not capped by regulation and can be substantial. We regularly see break costs in the $10,000 to $30,000 range on investment loans where the fixed rate is significantly above current wholesale rates and the remaining term is two years or more. The calculation is opaque and varies between lenders, but the key drivers are the size of the loan, the rate differential, and the time remaining.
For Bulimba investors, this becomes relevant when you want to sell the property, refinance to access equity for another purchase, or switch to a principal and interest structure after holding the loan interest-only during the fixed term. The break cost can erode a significant portion of your capital gain or refinance benefit, so the decision to fix should account for the likelihood you will need flexibility before the term ends.
Ongoing Account Fees and Offset Limitations
Fixed rate investment loans typically carry an annual package fee or ongoing account-keeping fee, similar to variable products, usually between $200 and $395 per year. Some lenders waive this fee if your total lending exceeds a certain threshold, commonly $150,000 or $250,000 depending on the institution.
Most fixed rate products do not offer offset accounts. Where an offset is available on a fixed loan, it is often a partial offset or capped at a percentage of the loan balance, and the fixed rate itself may be priced higher to accommodate the feature. For investors relying on offset balances to manage deductibility and quarantine non-deductible debt, the absence of a full offset on a fixed loan can create a structural disadvantage.
Redraw facilities are more common on fixed investment loans, but withdrawal restrictions apply. Many lenders limit redraw to once per year or impose a fee per transaction, and the treatment of redraw funds for tax purposes requires careful management to ensure you do not inadvertently mix deductible and non-deductible debt.
Split Loan Structures and Their Cost Implications
A split loan structure allows you to fix a portion of your investment loan and leave the remainder on a variable rate. This approach moderates your exposure to both fixed rate break costs and variable rate increases, and it preserves access to offset and redraw features on the variable portion.
The cost of a split structure depends on how your lender prices the individual components. Some lenders charge a separate application fee for each split, others charge a single fee and treat the splits as a package. You may also incur two valuation fees if the lender requires separate security documentation for each portion.
Consider an investor who borrows $700,000 to purchase a renovated character home in Bulimba and splits the loan into $400,000 fixed for three years and $300,000 variable with an offset account. The fixed portion provides rate certainty on the majority of the debt, while the variable portion allows the investor to park surplus rental income or salary in the offset to reduce interest on that component. If the investor needs to sell or refinance within the fixed term, the break cost applies only to the $400,000 fixed portion, not the entire loan.
Split structures add complexity to your loan administration and require you to nominate the split proportions upfront, but they offer a middle path for investors who want some certainty without locking in the entire loan amount.
Tax Deductibility of Fees and Break Costs
Application fees, valuation fees, and ongoing account-keeping fees on an investment loan are generally deductible in the income year they are incurred, provided the loan is used to acquire or hold an income-producing property. LMI premiums are also deductible, but the deduction is spread over five years or the term of the loan, whichever is shorter, unless the premium is less than $100.
Break costs are treated as a prepayment of interest and are deductible over the remaining term of the loan or five years, whichever is shorter. This means a $20,000 break cost paid when refinancing an investment loan with three years remaining would be deducted at $6,667 per year over the following three years, not as a lump sum in the year the cost is incurred.
Rate lock fees and other incidental costs associated with establishing or varying the loan are generally deductible in the year they are paid, provided the loan is used for income-producing purposes. Investors should retain all invoices and settlement statements to substantiate these deductions.
How APRA Settings Affect Fixed Rate Investment Loan Costs
Lenders assess all new investment loans under the current APRA serviceability buffer, which requires them to test your ability to repay the loan at a rate at least 3.0 percentage points above the loan product rate. For a fixed rate investment loan, the test rate is the fixed rate plus the buffer, not the variable rate, which can affect how much you can borrow.
Debt-to-income limits also apply from February 2026, with lenders restricted to offering no more than 20 per cent of new investor loans to borrowers with a total DTI ratio of six times or greater. These settings do not change the fees or costs you pay, but they do influence the loan amount you can access and therefore the scale of the fees, particularly LMI, that you will incur.
Higher capital requirements under APRA's prudential standards mean investment loans generally carry higher interest rates than owner-occupier loans, and fixed rates on investment loans are priced with an additional margin to reflect the regulatory capital cost. Understanding this helps explain why fixed investment loan rates are often less competitive than the headline rates advertised for owner-occupiers.
When Fixed Rate Costs Work for Portfolio Growth
Fixed rate costs make sense when the value of certainty exceeds the premium you pay and when you are confident the property will remain in your portfolio for the full fixed term. Investors building a portfolio across multiple properties often fix one or two loans to create a stable cashflow baseline while keeping other loans variable to retain flexibility for further acquisitions.
For Bulimba investors, the local market has seen steady demand from tenants and owner-occupiers, supported by proximity to the CBD, the Oxford Street dining precinct, and the riverfront parklands. A fixed rate on a well-located investment property in this suburb can provide income certainty while you build equity and prepare for the next purchase.
Fixed rate costs work less well when your investment strategy involves frequent refinancing to access equity, when you are likely to sell within the fixed term, or when the rate premium over variable products is high relative to your expected rate risk.
Call one of our team or book an appointment at a time that works for you. We work with Bulimba investors to structure investment loan options that balance cost, flexibility, and long-term portfolio growth, and we can model the total cost of fixing versus holding variable based on your specific circumstances and property type.
Frequently Asked Questions
What upfront fees do I pay on a fixed rate investment loan?
Most lenders charge an application fee of $300 to $600, plus a valuation fee of $200 to $400. If your deposit is below 20 per cent, you will also pay lenders mortgage insurance, which is higher on investment loans than owner-occupier loans and scales with your loan-to-value ratio.
How are break costs calculated on a fixed rate investment loan?
Break costs are calculated based on the difference between your fixed rate and the rate the lender can now earn by reinvesting the funds for the remaining term. If market rates have fallen, the cost can be substantial, often $10,000 to $30,000 or more depending on the loan size and remaining term.
Can I claim fixed rate loan fees and break costs as tax deductions?
Application fees, valuation fees, and ongoing account fees are generally deductible in the year incurred. Break costs are treated as prepaid interest and are deductible over the remaining loan term or five years, whichever is shorter.
Do fixed rate investment loans offer offset accounts?
Most fixed rate investment loans do not offer full offset accounts. Where an offset is available, it may be partial or capped, and the fixed rate is often priced higher to include the feature.
When does a split loan structure reduce fixed rate costs?
A split loan structure fixes part of your debt and keeps the rest variable, which limits break costs to the fixed portion only if you sell or refinance early. It also preserves offset and redraw features on the variable portion while providing rate certainty on the fixed component.