The easiest way to finance a rental property

Buying a rental property starts with working out how much you can borrow and what that borrowing will cost you.

Most lenders assess investment loans differently to owner-occupier home loans because the income comes from a tenant, not your salary alone. They apply a buffer to rental income, usually factoring in only 80 per cent of the expected rent to account for vacancy periods and maintenance costs. At the same time, they add your proposed loan repayment to your existing commitments when calculating serviceability. That means your borrowing capacity for an investment property is often lower than it would be for a home you plan to live in, even if the purchase price is identical.

How lenders assess your investment loan application

Lenders calculate serviceability by adding at least 3 percentage points to the interest rate on your proposed loan, then checking whether you can still afford the repayment alongside your other debts and living expenses.

Consider a buyer who earns $95,000 a year and wants to purchase a unit in Mountain Creek at the current median of $805,500 with a 20 per cent deposit. The loan amount would be $644,400. At current variable rates, the actual repayment on a principal and interest loan might sit around $4,100 per month. But the lender assesses serviceability at a rate 3 percentage points higher, which could push the test repayment above $5,200 per month. If this buyer already has a car loan and a modest credit card limit, those commitments reduce the amount available for the investment loan. The rental income from the property, say $845 per week based on the Mountain Creek median for units, gets shaved to around $676 per week in the serviceability calculation after the lender applies an 80 per cent buffer. That extra income helps, but it does not offset the loan repayment dollar for dollar.

The outcome is that buyers often need a larger deposit or higher income to secure the same loan amount for an investment property compared to an owner-occupied purchase. Lenders also price investment loans with a small margin above equivalent home loans, typically between 0.20 and 0.50 percentage points depending on whether you choose a variable or fixed rate.

Interest-only loans and how they affect cash flow

An interest-only loan lets you pay only the interest portion of the debt each month, without reducing the principal, for a set period, usually between one and five years.

This structure lowers your monthly repayment in the short term, which can improve cash flow if the rent does not quite cover a principal and interest repayment. In our experience, interest-only loans suit buyers who want to hold multiple properties or who plan to use surplus income to pay down other debts first, such as a mortgage on their own home. Once the interest-only period ends, the loan reverts to principal and interest, and the repayment increases because you are then paying off the original loan amount over the remaining term.

The trade-off is that you do not build equity in the property through loan repayments during the interest-only period. Your only equity gain comes from capital growth. For a property in Mountain Creek purchased at the current house median of $1,210,000 with a 20 per cent deposit, an interest-only repayment at current variable rates might sit around $5,150 per month, compared to around $6,500 per month on principal and interest. That difference of $1,350 per month can be meaningful if you are also managing rates, insurance, and body corporate fees. But when the interest-only term expires, the repayment jumps sharply unless you refinance or extend the interest-only arrangement, which is not always approved by lenders on the same terms.

Variable or fixed rates for investment properties

Variable rates on investment loans move with the market, which means your repayment can increase or decrease depending on what the Reserve Bank and your lender do with rates.

Fixed rates lock in your repayment for a set term, usually between one and five years, which gives you certainty over your cash flow during that period. Most lenders let you fix the entire loan amount or split it between variable and fixed portions. A split structure gives you some repayment certainty while keeping part of the loan flexible, so you can make extra repayments or access an offset account on the variable portion without penalty.

For rental properties, offset accounts only work on the variable portion of your loan, and they need to be in credit to reduce the interest you are charged. If you fix the whole loan and want to exit before the fixed term ends, the lender may charge break costs, which can run into thousands of dollars depending on how far rates have moved since you locked in. In our experience, most investors either stay fully variable to preserve flexibility or split the loan 50/50 to balance certainty and access to features like offset and extra repayments.

Loan to value ratio and deposit requirements

Most lenders cap investment loans at 90 per cent of the property value, though some will not lend above 80 per cent without Lenders Mortgage Insurance.

LMI protects the lender if you default, and the premium is calculated based on your loan amount and deposit size. For a unit in Mountain Creek at the current median of $805,500, a 10 per cent deposit would leave a loan amount of $725,000, which pushes the loan to value ratio above 90 per cent once you add stamp duty and other purchase costs. LMI on a loan of that size could easily exceed $20,000, and while you can usually add the premium to your loan, it increases both your debt and your ongoing repayments.

A 20 per cent deposit avoids LMI entirely in most cases and gives you access to better interest rates, because lenders price loans more competitively when the loan to value ratio sits at 80 per cent or below. If you already own property, you may be able to use equity in that property as part or all of your deposit, which means you do not need to have cash saved separately. Lenders assess usable equity by taking 80 per cent of your property's current value and subtracting what you owe. For a home in Mountain Creek valued at the current house median of $1,210,000 with a remaining mortgage of $400,000, your usable equity would sit around $568,000, which is more than enough to cover a 20 per cent deposit on a second property without selling or drawing on savings.

What rental income do lenders actually count

Lenders do not accept your estimated rent at face value.

They require a rental appraisal from a licensed property manager, and then they apply a buffer, usually 20 per cent, to account for periods when the property might sit vacant or need repairs. With the Sunshine Coast vacancy rate sitting at 0.7 per cent, the risk of extended vacancy is low in reality, but lenders still apply the buffer as a standard credit policy. For a house in Mountain Creek renting at the current median of $845 per week, the lender will only count $676 per week, or around $35,000 per year, when calculating your serviceability. If your property has high body corporate fees or council rates, those costs are deducted from the net rental income before the lender adds it to your borrowing capacity.

Properties near the Sunshine Coast University Hospital and University of the Sunshine Coast, which includes much of Mountain Creek, tend to hold tenants well because of the demand from hospital staff, university employees and students. That does not change the serviceability calculation, but it does reduce the real-world risk that you will be carrying the full loan repayment without rental support.

Negative gearing and how new tax rules apply from mid-2027

Negative gearing refers to the situation where your rental income is less than your total property expenses, including interest, and you offset that loss against your other income to reduce your tax.

Under current rules, losses from a rental property purchased before 12 May this year can still be deducted against salary and wages until you sell. Properties purchased after that date and before 1 July next year can be negatively geared under the current rules until 30 June next year only. From the start of the next financial year, losses on established properties bought after 12 May this year can only be offset against other residential property income, including capital gains when you eventually sell. Losses that cannot be used in a given year carry forward.

Eligible new builds remain fully exempt from the change, which means you can still deduct losses from a newly constructed property against your salary indefinitely. For a buyer in Mountain Creek looking at an established home at the current median of $1,210,000, the tax treatment depends entirely on when you exchange contracts. If you are still comparing properties and have not yet made an offer, any purchase you complete from this point forward will be subject to the new rules once they commence. The benefit of negative gearing under the old system was that it reduced your taxable income each year, lowering the after-tax cost of holding the property. Under the new system, you still get the deduction eventually, but only when you sell or if you buy additional investment properties that generate a profit.

Tax on capital gains from 1 July next year

From 1 July next year, the 50 per cent capital gains discount for individuals is replaced by cost base indexation and a 30 per cent minimum tax rate on real gains for the portion of growth that happens after that date.

For properties you already own or purchase before 1 July next year, gains up to that date are taxed under the current 50 per cent discount rules. Gains after that date are indexed for inflation, and you pay tax only on the real increase in value above inflation. The 30 per cent minimum rate applies only if your effective tax rate on that indexed gain would otherwise be lower. Most salary earners will not hit the minimum because their marginal rate is already above 30 per cent, but retirees or part-time workers might. If you buy an eligible new build, you can choose at the time of sale between the old discount method and the new indexed method, whichever gives you the lower tax.

The change does not affect the strategy of holding property for long-term growth, but it does mean the after-tax return from selling will be different depending on when you bought and when you sell. For buyers in Mountain Creek purchasing an established property now, the transition means you will be subject to a split calculation whenever you eventually sell.

Making the application work when you are already borrowing

If you still have a mortgage on your own home, that repayment counts as a commitment when the lender assesses your ability to service an investment loan.

The way to improve your borrowing capacity is either to increase your income, reduce your debts, or use equity instead of saving a separate deposit. Many buyers on the Sunshine Coast use a combination of all three. Paying down your car loan or closing unused credit cards can add tens of thousands of dollars to what you can borrow, because lenders assume you are using the full limit of every credit facility even if the balance is zero. For buyers who have owned a home in Mountain Creek for several years and seen it increase in value, refinancing to access equity and consolidate debts can simplify the structure and increase serviceability at the same time.

We regularly see buyers who assume they need to save another $100,000 in cash before they can purchase an investment property, when in fact they already have $200,000 in usable equity sitting in their current home. The equity can cover the deposit, and sometimes the stamp duty as well, which means the main constraint becomes serviceability rather than savings. Running the numbers with your broker before you start looking at properties lets you know exactly what price range is realistic and what changes, if any, would improve your position.

Call one of our team or book an appointment at a time that works for you

If you are weighing up a rental property purchase in Mountain Creek or anywhere else on the Sunshine Coast, the structure you choose and the way you present your application will directly affect how much you can borrow and what your holding costs look like once you settle. We work through your income, existing debts, and usable equity to find the loan structure that fits your situation, and we compare investment loan options from lenders across Australia to make sure you are not paying more than you need to. Call one of our team or book an appointment at a time that works for you.

Frequently Asked Questions