The easiest way to assess investment property risk

Understanding Investment Risk Before You Sign

Investment risk assessment means working out whether a property can carry its own costs when rental income stops, rates climb, or your posting changes. The property needs to work financially in both the good months and the ones where tenants leave or repair bills hit.

For ADF members posted to Kapooka, that assessment carries extra weight. A property that looks viable during recruit training or instructor postings can turn into a problem when you deploy or relocate to Townsville. The decision to borrow for investment property depends on whether the numbers hold when your access to the property or your income changes.

How Lenders Calculate Your Investment Borrowing Capacity

Lenders assess investment loans using actual rental income reduced by a 20 per cent buffer, then add the loan repayment to your existing debt and test it against your income using a serviceability buffer of 3 percentage points above the product rate. That calculation determines your maximum loan amount before you ever see a property.

Consider an ADF member earning $95,000 annually who wants to buy an investment property with expected rental income of $450 per week. The lender will use $360 per week in the calculation, not the full $450. If the property requires a loan of $480,000 at a variable rate of 6.2 per cent, the lender tests serviceability at 9.2 per cent. The weekly repayment at the test rate sits around $870, and that figure gets added to any existing car loan, personal debt or owner-occupied mortgage.

Debt-to-income caps now limit new investor loans where total debt sits at 6 times your gross income or more. For someone earning $95,000, that cap is $570,000 across all loans. If you already carry $150,000 in owner-occupied debt, your investment borrowing sits closer to $420,000 before hitting the DTI threshold.

What Vacancy and Holding Costs Do to Your Buffer

A property that returns $450 per week when tenanted will cost you around $850 per week when vacant, covering the full loan repayment, council rates, strata fees if applicable, landlord insurance, and property management. That difference matters when the average vacancy period in regional NSW runs between three and six weeks during a tenant changeover.

In our experience, members underestimate how quickly holding costs add up during gaps. A single vacancy period of six weeks costs around $5,100 in unrecovered expenses. If you are posted interstate and managing the property remotely, that bill arrives regardless of whether you can physically attend inspections or coordinate repairs.

Properties in areas with higher vacancy rates or seasonal rental demand require a larger cash buffer before settlement. Investors should hold at least three months of holding costs in offset or redraw to cover the gap without needing to pull funds from other commitments. If your posting cycle or deployment schedule makes it difficult to access those funds quickly, the buffer needs to sit in an account you can reach from anywhere.

How the Negative Gearing Rule Change Affects New Purchases

From 1 July 2027, rental losses on residential investment properties purchased after 7:30pm on 12 May 2026 cannot be offset against salary or wages unless the property qualifies as an eligible new build. Those losses get quarantined and can only offset future rental income or capital gains on residential property.

That change removes one of the main tax benefits that made negatively geared properties viable for salary earners. A member earning $95,000 who previously reduced taxable income by $8,000 per year through negative gearing will now carry that loss forward instead of receiving a tax refund of around $2,600 annually. The property must generate positive rental income or be sold before the loss delivers any tax benefit.

Established properties purchased before the announcement date remain grandfathered under the old rules. Members holding investment property at 7:30pm on 12 May 2026, or who exchanged contracts before that time, can continue claiming rental losses against salary until they sell. Properties purchased between the announcement and 30 June 2027 can be negatively geared under existing rules until 30 June 2027 only, then fall under the new quarantine from that point forward.

Eligible new builds, meaning dwellings constructed on previously vacant land or developments that increase the total number of dwellings, retain full access to negative gearing. A knock-down rebuild that does not increase dwelling numbers does not qualify. For more detail on how new build definitions apply to defence housing or regional construction, refer to our guide on construction loans for ADF members.

Assessing Loan Structure for Changing Income and Deployment

Interest-only repayments reduce your weekly outgoing during the interest-only period but increase risk if rental income drops or the loan reverts to principal and interest without refinancing. The weekly repayment on a $480,000 loan at 6.2 per cent sits around $570 on interest-only and $730 on principal and interest.

That $160 difference per week looks helpful during early years when cash flow is tight, but the loan balance stays at $480,000 for the entire interest-only term. If property values fall or your equity position weakens due to market conditions, refinancing at the end of the interest-only period may require a full valuation and serviceability retest. Members who have reduced income due to part-time service, parental leave, or transition to civilian work can find themselves unable to refinance and forced onto a higher principal and interest repayment without preparation.

We regularly see members choose a principal and interest structure from the start to build equity and reduce loan balance even when cash flow would allow interest-only. That approach provides more options at renewal and keeps the loan balance moving down regardless of market conditions. If you are planning to hold the property long-term and your income is stable, principal and interest removes one refinancing risk from the equation. For members with irregular deployment schedules or uncertain income, the same logic applies in reverse: reducing your loan balance gives you more options when circumstances change.

Another common structure is splitting the loan between fixed and variable portions. A fixed portion locks in repayments on part of the loan for a set term, while the variable portion retains access to offset and redraw. That structure works well when you want certainty on part of the repayment but need flexibility to make extra payments or access funds during posting or deployment. You can read more about how offset and redraw options work for investment lending in our overview of investment loans for ADF members.

Weighing Capital Growth Against Rental Yield in Regional Markets

Properties near Kapooka and the broader Wagga Wagga area typically deliver stronger rental yield than capital city markets but slower capital growth over time. A property returning 5.5 per cent gross yield may only appreciate at 3 per cent annually, while a Sydney property returning 3 per cent yield might grow at 5 per cent per year.

That difference changes the risk calculation depending on your investment horizon. Members planning to hold for ten years or more may prioritise growth over yield, accepting lower rental income and higher negative cash flow in exchange for larger capital gain at sale. Members with shorter timelines or less tolerance for ongoing contributions may prefer higher yield and lower growth to minimise the cash required to hold the property.

Yield alone does not determine viability. A property returning $500 per week in a town with 8 per cent vacancy and declining population still carries more risk than a property returning $420 per week in a regional centre with stable employment and infrastructure investment. Rental demand, tenant quality, and local economic conditions all affect whether the income stream continues when market conditions shift.

Using Equity Release to Fund Your Deposit Without Selling

Members who already own a home can use equity in that property to fund the deposit on an investment purchase without selling or withdrawing savings. That approach allows you to retain your owner-occupied property while building a second asset, but it increases your total debt and changes your risk profile.

Lenders calculate usable equity as 80 per cent of your property value minus your current loan balance. If your home is valued at $620,000 and you owe $310,000, your usable equity sits at $186,000. That amount can cover a 20 per cent deposit and settlement costs on a property up to around $850,000, but the total debt across both properties would climb to over $990,000.

Serviceability becomes the constraint. Your income must support repayments on both loans plus any other debt, tested at the serviceability buffer. Members using equity to invest need to model repayments at test rates and factor in vacancy, rate rises, and holding costs across both properties. If one property sits vacant or requires major repair, your income must cover both loans in full. Further information on how equity release works and when it makes sense is covered in our guide to equity release loans for ADF members.

When Investment Property Risk Outweighs the Benefit

Some scenarios do not support investment borrowing regardless of how the property performs. If your current debt already sits near the DTI cap, adding investment debt may push you over the threshold and limit future borrowing for owner-occupied or construction purposes. If your income is uncertain due to transition planning, contract work, or part-time service, lenders may not approve the loan even if the property stacks up on paper.

Members posted to Kapooka for short-term instructor or training roles should consider whether the investment timeline suits the posting cycle. A property purchased during a two-year posting and sold during the next posting may incur capital gains tax, selling costs, and early exit fees that eliminate any benefit from holding. Investment property works over longer horizons where capital growth and rental income compound, not as a short-term hold during a single posting.

If the only way to make the purchase work is to maximise your borrowing capacity, skip the building inspection, or rely on projected rental income that sits above comparable properties in the area, the risk is too high. Investment lending should leave room for things to go wrong, not depend on everything going right.

Call one of our team or book an appointment at a time that works for you. We will walk through your serviceability, tax position, and risk tolerance to work out whether investment property makes sense for your circumstances and timeline.

Frequently Asked Questions