What are Investment Loans for Buying a Townhouse?

An investment loan for a townhouse works differently from a standard home loan.

Lenders classify any loan secured against property you're renting out as investor lending, which means higher interest rates, stricter serviceability tests and different loan features compared to owner-occupied finance. When you're buying a townhouse specifically, lenders also factor in body corporate arrangements, strata title and whether the property sits within a complex that might affect rental demand or resale value down the line.

How Lenders Assess Investment Loans for Townhouses

Lenders assess your ability to service an investment loan at a rate at least 3 percentage points above the actual loan rate. They also discount the rental income you're relying on, typically by 20 per cent, to account for vacancy periods and maintenance costs. If you're borrowing more than 80 per cent of the property value, you'll pay Lenders Mortgage Insurance, which is calculated on a sliding scale and is typically higher for investor loans than for owner-occupied lending at the same loan to value ratio.

Consider a buyer purchasing a townhouse in Baldivis priced at the suburb's current median. With a 10 per cent deposit, the loan amount would trigger LMI, and the buyer's income would need to cover not just the mortgage repayment but also the serviceability buffer and the discounted rental income assumption. In our experience, buyers underestimate how much the rental income discount affects borrowing capacity, particularly when they're relying on that income to make the numbers work.

From 1 February, lenders have been required to cap high debt-to-income lending at 20 per cent of new investor loans, which means if your total borrowing is six times your gross income or more, you may find fewer lenders willing to approve your application. That threshold applies separately to investor lending, so even if you have an owner-occupied loan sitting below the limit, your investor borrowing is measured on its own.

Interest Only Repayments and Cashflow Strategy

Interest only repayments reduce your monthly outgoings by deferring principal repayments for a set period, usually between one and five years. The loan amount doesn't reduce during that time, but your cashflow improves, which can be useful if the property is negatively geared and you're covering the shortfall each month out of your salary.

The trade-off is that you're not building equity through repayments, only through any capital growth the property delivers. Lenders also charge a higher variable interest rate on interest only investment loans compared to principal and interest loans at the same LVR. If the interest only period exceeds five years and the LVR is above 80 per cent, the loan is classified as non-standard under current prudential rules, which can limit your investment loan options across the market.

In a scenario like this: a buyer purchases a townhouse in Ellenbrook and structures the loan as interest only for three years. The rental income covers most of the interest cost, but not all of it, so the buyer is negatively geared by around $150 per week. That loss is deductible against their salary, which reduces their taxable income. At the end of the three-year period, the loan converts to principal and interest unless the buyer refinances or requests an extension, which requires a new serviceability assessment.

What Changed with Negative Gearing from the 2027-28 Income Year

If you purchased your townhouse before 7:30pm AEST on 12 May 2026, or if you're buying a new build, losses from the property remain fully deductible against your salary and other income. For established townhouses purchased after that date, losses are only deductible against other residential property income from the 2027-28 income year onward. Excess losses can be carried forward, but they can't reduce your taxable salary in the same way they could before the change.

Townhouses in Western Australia completed within the last 12 months and sold as new may qualify as eligible new builds, which preserves full negative gearing regardless of when you buy. The property must have been constructed on previously vacant land or must have increased the total number of dwellings on the site. A knock-down rebuild that replaces one townhouse with one townhouse doesn't qualify. If a new build is occupied for more than 12 months before you buy it, it loses the exemption.

This distinction matters if you're comparing a townhouse in a new complex in Byford against an established townhouse in the same suburb. The tax treatment of any loss differs depending on when the property was built and when you settle, even if the rental yield and capital growth prospects look identical on paper. Buyers looking at buying their first investment property will need to weigh up whether the tax benefit offsets any price premium attached to the new stock.

Body Corporate Fees and Lender Appetite

Lenders treat body corporate fees as an ongoing cost that reduces your serviceability, similar to council rates or landlord insurance. If the fees are high relative to the property value, some lenders will apply an additional discount to rental income or tighten their assessment. Townhouses with shared amenities like pools, gyms or large common areas tend to carry higher levies, which can affect both your borrowing capacity and the property's appeal to renters.

Most lenders will also review the strata report before settlement to confirm there are no special levies pending and that the body corporate is adequately funded. A complex with a low sinking fund balance or deferred maintenance can trigger additional conditions or a reduced valuation, particularly if the lender's valuer flags structural or compliance concerns.

In Western Australia, strata title townhouses are common in growth corridors like Mandurah, Baldivis and the northern suburbs, where developers have built medium-density stock to meet demand from renters and investors. If you're looking at a complex with more than 20 townhouses, check whether the body corporate allows short-term letting, as some schemes restrict Airbnb-style arrangements, which could limit your exit strategy if you decide to sell to an investor targeting that market.

Fixed Rate or Variable Rate for Investment Townhouses

Variable rate loans give you access to offset accounts and allow unlimited extra repayments without penalty, which can be useful if you're planning to use surplus rental income or salary to reduce the loan balance over time. Fixed rate loans lock in your interest cost for a set period, typically between one and five years, but most lenders don't offer offset on fixed rate investment loans, and you'll pay break costs if you repay early or refinance before the fixed term ends.

If you're negatively geared and relying on the interest deduction to reduce your taxable income, a variable rate loan with an offset account lets you park surplus cash without reducing your deductible interest, as offset balances don't reduce the loan amount for tax purposes. That's different from making extra repayments directly onto the loan, which reduces both the balance and the amount of interest you can claim.

Some investors split their loan between fixed and variable, which gives partial rate certainty while preserving flexibility on part of the debt. If you're considering that structure, check whether the lender allows you to nominate which portion of the loan receives rental income, as that can affect how you manage offset and deductibility across both splits. You can also review your current loan structure through a loan health check before committing to a refinance or new borrowing.

Capital Gains Tax and Indexation from 1 July 2027

From 1 July 2027, capital gains on investment property are taxed under a new system that replaces the 50 per cent CGT discount with cost base indexation and a 30 per cent minimum tax rate on real gains. For townhouses purchased before 1 July 2027 and sold after that date, you'll calculate the gain in two parts: gains accruing before 1 July 2027 are taxed under the existing discount rules, and gains accruing after that date are indexed to CPI and taxed at whichever is higher between your marginal rate and 30 per cent.

If you're buying an eligible new build townhouse, you can choose between the old discount system and the new indexed system when you eventually sell, which gives you the option to pick whichever delivers the lower tax. That choice only applies to new builds, so if you're comparing two townhouses with similar yields and growth potential, the tax outcome on sale could differ by tens of thousands of dollars depending on whether the property qualifies.

You can either obtain a market valuation as at 1 July 2027 or use an ATO apportionment formula to split the gain. If you're holding the property for more than a decade, the indexed system may deliver a lower effective tax rate than the old 50 per cent discount, particularly if inflation runs above 3 per cent per year and your marginal rate is below 45 per cent. If you're purchasing close to 1 July 2027, the apportionment becomes less relevant, as most of the gain will accrue under the new rules.

Vacancy Rates and Rental Income Assumptions

Lenders discount rental income to account for periods when the property is vacant or undergoing maintenance. The standard discount is 20 per cent, but some lenders apply a higher discount if the property is in a location with weak rental demand or if the townhouse has features that might limit tenant appeal, such as no parking or poor access to public transport.

In Western Australia, vacancy rates vary by region and property type. Townhouses in established suburbs close to Perth CBD, such as Inglewood or Mount Lawley, typically have lower vacancy rates than townhouses in outer growth areas where supply has outpaced demand. If you're buying in a suburb with a high proportion of investor-owned stock, check recent vacancy trends and average days on market for rental listings, as that will give you a more accurate picture of how much rental income you can rely on when calculating serviceability.

Rental income is only included in serviceability once you have a signed lease in place or can provide evidence of market rent through a property manager's appraisal. If you're buying off the plan or settling on a newly completed townhouse, lenders will use the appraised rent but won't release funds until you've met any presettlement conditions, which may include confirmation that the property is tenanted or genuinely available for lease.

Using Equity to Fund Your Deposit

If you already own property, you may be able to use equity in that property to fund the deposit on your investment townhouse without selling or drawing on savings. Lenders will assess the combined loan to value ratio across both properties and apply serviceability tests to the total debt, including the new investment loan.

Equity release works by refinancing your existing loan to a higher amount or establishing a separate line of credit secured against the property you already own. The funds are then used to cover the deposit and settlement costs on the townhouse. You'll need to demonstrate that you can service both loans, and if the combined LVR exceeds 80 per cent, you'll pay LMI on the incremental borrowing above that threshold.

In our experience, buyers using equity to fund an investment purchase underestimate the impact on their overall serviceability, particularly if they're planning to expand their property portfolio further in the next few years. Once your total debt exceeds six times your income, you're caught by the DTI lending limits that apply from 1 February, which can make it harder to access further investment lending even if you have significant equity across your portfolio. If you're considering this approach, map out your next two to three purchases before committing, as the sequencing can affect how much you're able to borrow at each step. You can also review your borrowing capacity before making an offer to confirm the numbers work across your whole portfolio.

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