Investment Loans: What to Compare and Why It Matters

Not all investor loans are structured the same. Comparing rate, flexibility and tax treatment before you commit can shift your cashflow by thousands each year.

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Comparing investor loans means looking past the advertised rate to the structure that fits your cashflow, your tax position and your plans for the portfolio.

Many borrowers in Cannon Hill pick a lender based on headline rate alone, then find themselves locked into repayment terms or features that work against their strategy. The difference between a well-matched loan and one chosen for rate alone can show up in annual cashflow, refinancing costs and the speed at which you can add to your holdings.

What Makes an Investment Loan Different From a Standard Home Loan

An investor loan is assessed and priced differently because the security is not your home and the income source includes rent, not just your salary. Lenders apply higher risk weights under prudential standards, which generally results in higher rates and stricter serviceability tests. The loan also needs to support a tax structure where interest is deductible and cashflow may be negative for part of the year.

The structure you choose should reflect whether you plan to hold the property long term, whether you need access to equity for further purchases, and whether your income is stable or variable. A loan that looks appealing on a comparison site may lack the offset access, redraw flexibility or interest-only option that keeps your strategy on track.

Variable or Fixed Rate for an Investment Property

Variable rates give you flexibility to make extra repayments, access offset accounts and refinance without break costs. Fixed rates lock in your repayments and protect you from rate rises, but you lose redraw access during the fixed term and you may face significant costs if you need to exit early.

Consider an investor who purchases a townhouse in Cannon Hill and expects rental income to cover most of the repayment. A variable rate with full offset lets them park any surplus rent or personal savings in the offset account, reducing interest without losing access to the funds. If the same borrower fixes the rate, those surplus funds sit in a separate account earning minimal interest while the full loan balance accrues interest at the fixed rate. Over a few years, the difference in effective interest paid can exceed several thousand dollars, even if the fixed rate itself was lower at the outset.

In our experience, investors who plan to refinance within three years or who expect to sell or renovate within five years are better served by variable rates. Those who want repayment certainty and have no plans to adjust the loan structure during the fixed term may benefit from fixing part or all of the balance.

Interest Only or Principal and Interest Repayments

Interest-only repayments reduce your monthly outgoings and maximise your deductible interest, which can improve cashflow and tax outcomes in the early years of ownership. Principal-and-interest repayments reduce your debt over time and may qualify for a slightly lower rate, but they also reduce the tax deduction and increase the amount of equity tied up in one property.

For properties acquired after May 2026 and settled after that date, negative gearing restrictions will apply from the 2027-28 income year unless the property is a qualifying new build. For those properties, excess interest may no longer be deductible against wage income, which changes the cashflow benefit of interest-only terms. Investors holding properties acquired before that date or purchasing new builds still have full access to negative gearing and should weigh the cashflow and tax benefit of interest-only terms more heavily.

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Book a chat with a Finance & Mortgage Broker at LBK Lending today.

Offset Accounts and Redraw on Investor Loans

An offset account linked to your investment loan reduces the interest you pay without reducing the loan balance, which preserves your deductible interest and keeps funds accessible. Redraw allows you to withdraw extra repayments you have made, but some lenders restrict or charge for redraw access, and using redraw can reduce your tax-deductible interest if the withdrawn funds are used for private purposes.

If you plan to use surplus income or rent to reduce interest costs while maintaining access to those funds, an offset account is the clearer option. If you are confident you will not need access to surplus repayments and you want to reduce the loan balance, principal-and-interest with redraw may suit. Offset is more common on variable rate loans. Fixed rate products rarely offer offset, and when they do, the rate premium often outweighs the benefit.

Loan to Value Ratio and Deposit Size

Lenders generally cap investor loans at 90 per cent LVR, and most will charge Lenders Mortgage Insurance above 80 per cent. At 90 per cent LVR, LMI can add several thousand dollars to your upfront costs, depending on the loan amount. Some lenders offer no LMI loans for specific borrower profiles or through employer arrangements, which can reduce or eliminate that cost.

Your LVR also affects the rate you are offered. A borrower with a 70 per cent LVR will typically receive a lower rate than one borrowing at 85 per cent, even from the same lender. If you have access to additional deposit or equity from another property, comparing the rate saving against the opportunity cost of tying up that equity is worthwhile. In some cases, borrowing at a higher LVR and paying LMI leaves more capital available for further purchases or renovations, which may outweigh the cost of the premium.

How Rental Income Is Assessed by Lenders

Lenders typically shade rental income by 20 per cent to account for vacancy, maintenance and management costs. Some lenders apply a lower shading percentage if you can demonstrate a strong rental history or if the property is in a high-demand area. The shaded income is then added to your other income when calculating borrowing capacity.

Cannon Hill sits close to major employment centres including the Port of Brisbane precinct and Wynnum Road commercial corridor, and rental demand in the area has remained consistent due to proximity to schools, Moreton Bay and the Gateway Motorway. A property near Cannon Hill Station or within walking distance of Oxford Street shops may attract higher assessed rental income due to location appeal, though lenders will still apply their standard shading formula.

If your rental income is borderline for serviceability, switching to a lender with lower shading or one that allows you to capitalise LMI rather than pay it upfront can make the difference between approval and decline.

Debt to Income Limits and Investment Borrowing

From February 2026, lenders have been restricted to offering no more than 20 per cent of new investor loans to borrowers with a debt-to-income ratio of six times or more. If your total borrowings, including the new loan, exceed six times your gross income, you may find fewer lenders willing to approve your application or you may need to increase your deposit to bring the loan amount down.

Consider a scenario where a borrower earning $120,000 per year already holds $500,000 in owner-occupier debt and applies for a $400,000 investor loan. Total debt would be $900,000, which is 7.5 times income. That borrower may be subject to the DTI limit and may need to approach multiple lenders or reduce the loan amount to gain approval. Working with a broker who understands which lenders have capacity within their DTI quota in any given quarter can save weeks of back-and-forth.

Refinancing an Existing Investment Loan

Refinancing lets you access a lower rate, switch loan features or release equity for further investment. Most lenders will reassess your income, your existing debt and the current value of the property before approving a refinance. If your property has increased in value or your rental income has risen, you may be able to borrow additional funds without increasing your LVR above 80 per cent.

If you are on a fixed rate and considering refinancing before the term ends, compare the break cost against the ongoing saving from the new rate. Break costs can be substantial if rates have fallen since you fixed. If you are on a variable rate, there is typically no break cost, and refinancing is a matter of comparing application fees, valuation costs and the rate differential.

Many investors in the Cannon Hill area refinance every few years to access equity for their next purchase or to move from interest-only back to principal-and-interest as their income increases. Running a loan health check at least once a year ensures you are not paying more than you need to or missing features that would support your next move.

Where to Start When Comparing Investment Loan Options

Start by defining what you need the loan to do. If your priority is cashflow, look for variable rate products with offset and interest-only options. If you want rate certainty and have no plans to adjust the loan, compare fixed rates with low application fees. If you are planning to build a portfolio, prioritise lenders who allow equity release and multiple security properties without cross-collateralisation.

Once you have a shortlist, compare the total cost over the period you expect to hold the loan, not just the advertised rate. Include application fees, valuation fees, annual fees and any LMI premium. Factor in the tax benefit of interest deductions and the effect of offset or redraw on your effective rate.

Call one of our team or book an appointment at a time that works for you. We will walk through your circumstances, compare the investor loan products that match your strategy, and help you structure the loan to support both your immediate cashflow and your longer-term plans.

Frequently Asked Questions

What is the main difference between an investment loan and a home loan?

Investment loans are assessed using stricter serviceability criteria and generally attract higher rates because the property is not owner-occupied. Rental income is shaded by around 20 per cent when calculating borrowing capacity, and the loan structure is designed to support tax deductions and portfolio growth.

Should I choose a variable or fixed rate for an investment property loan?

Variable rates offer flexibility for extra repayments, offset access and refinancing without break costs. Fixed rates provide repayment certainty but limit your ability to make changes during the fixed term. Your choice depends on whether you value flexibility or predictability more.

What is the benefit of an interest-only investment loan?

Interest-only repayments reduce your monthly outgoings and maximise your tax-deductible interest, which improves cashflow in the early years. However, they do not reduce your debt over time, and properties acquired after May 2026 may face limits on negative gearing from the 2027-28 income year unless they qualify as new builds.

How does my loan to value ratio affect my investment loan?

A lower LVR typically results in a lower interest rate and may avoid Lenders Mortgage Insurance, which is usually required above 80 per cent. Borrowing at a higher LVR increases your upfront costs but leaves more capital available for other investments or deposits.

Can I refinance my investment loan to access equity for another property?

Yes, refinancing allows you to release equity if your property has increased in value or your rental income has improved. Lenders will reassess your borrowing capacity and the current LVR before approving additional funds.


Ready to get started?

Book a chat with a Finance & Mortgage Broker at LBK Lending today.