A property can rise significantly in value and still reach a point where the equity sitting inside it could potentially be working harder elsewhere.
That is why experienced investors should look beyond one simple question: "How much has my property gone up?"
A more useful question is: "What return am I now generating from the equity tied up in this property?"
Return on equity (ROE) can help Australian investors answer that question. Whether you own an investment property on the NSW South Coast, in Canberra or elsewhere in Australia, understanding ROE can give you another way to assess whether an asset still deserves its place in your portfolio.
Importantly, ROE is not a signal to automatically sell a property. It is a decision-making tool that can help you assess the opportunity cost of the capital you already have invested.
What Is Return on Equity in Property Investment?
Return on equity measures the return generated by an investment property relative to the equity held in that property.
Equity is generally calculated as the property's current market value less the debt secured against it.
The basic calculation is:
Return on equity = Annual return ÷ Equity × 100
Where investors need to be careful is defining "annual return."
You might calculate ROE using net rental income after expenses and interest. You might include estimated capital growth. Alternatively, you can assess cash flow ROE and capital-growth ROE separately before considering the property's overall performance.
There isn't one universal method that suits every portfolio review. What matters is consistency. Comparing the cash flow return of one property against the total return of another, for example, can produce a misleading comparison.
Start With an Accurate Property Value
Before calculating ROE, you need a reasonable assessment of what the property is worth today.
If the property has recently sold, the sale price provides clear evidence. If a professional valuation has recently been completed, that can also be useful.
Where neither is available, a desktop valuation from a reliable property data provider such as PropertyValue/Cotality can provide an estimate. This can then be cross-checked against appraisals from local real estate agents.
Using two or three sources is often preferable to relying on a single estimate.
This can be particularly important in markets such as the NSW South Coast and Canberra, where performance can vary significantly between suburbs, property types and even individual streets. A broad regional growth figure may not accurately represent the value or prospects of your particular asset.
Why Leverage Makes Return on Equity So Important
The reason ROE is particularly useful in property is leverage.
Australian property investors can use the property as security to borrow a substantial proportion of its purchase price, subject to lender requirements and their borrowing capacity.
Consider a simplified example.
Example: An $800,000 Investment Property
Assume an investor purchases 123 Smith Street for $800,000.
An 80% loan-to-value ratio (LVR) means:
- Purchase price: $800,000
- Loan: $640,000
- 20% deposit: $160,000
There are also acquisition costs such as stamp duty and legal fees. For this simplified example, we'll allow another 5%, or $40,000.
The investor therefore contributes approximately $200,000 in initial equity and acquisition capital.
Now assume the property appreciates by 20% over four years, increasing from $800,000 to $960,000.
For simplicity, assume the $640,000 debt remains unchanged because the loan is interest-only.
The position is now:
- Property value: $960,000
- Debt: $640,000
- Investor equity: $320,000
- Gross capital gain: $160,000
Compare that $160,000 gain with the original $200,000 contributed:
$160,000 ÷ $200,000 × 100 = 80% cumulative return on initial equity
Using a simple average, that is approximately 20% per year.
On a compound annualised basis, the return on the investor's initial capital is approximately 15.83% per year.
Yet the property itself only needed to grow at approximately 4.66% per year compounded to achieve the 20% increase over four years.
That difference demonstrates the impact of leverage.
Leverage Can Magnify Gains — and Losses
Leverage is one of the reasons residential property has played an important role in wealth creation for many Australian households.
Reserve Bank of Australia research has previously found that national housing prices increased by an average of around 7.25% per annum over the 30-year period examined.
That figure is historical, not a forecast. Individual markets, suburbs and properties can perform very differently from a national average.
It is also critical to remember that leverage works in both directions. Borrowing can magnify the return on your equity when property prices increase, but it can also magnify losses when values decline.
The example above deliberately excludes rental cash flow, interest costs, taxation and selling costs to illustrate the relationship between capital growth, leverage and investor equity. A full portfolio assessment should consider all of these factors.
Why Does ROE Matter to Property Investors?
Return on equity changes the portfolio conversation.
Instead of simply asking:
"Has my investment property increased in value?"
You can ask:
"Is the equity accumulated in this property producing an adequate return compared with my alternatives?"
Imagine a property purchased many years ago that now has substantial equity but relatively modest rental income and weaker future growth prospects.
The property may still look successful when judged against its original purchase price. But that isn't necessarily the most useful benchmark today.
The investor could now have hundreds of thousands of dollars of equity committed to the asset. ROE encourages them to assess how effectively that capital is being deployed.
That doesn't automatically mean selling. The appropriate response might be to hold, renovate, refinance, reduce debt or redeploy capital elsewhere.
When a Lower Return on Equity Can Still Make Sense
A low ROE should prompt investigation rather than an automatic decision to sell.
Property is generally a long-term investment, so short-term performance needs context.
For example, an investor may accept a lower current cash flow ROE where the property is in a market with strong underlying demand and attractive long-term prospects.
An investor approaching retirement may also value stability and lower debt more highly than someone in an aggressive portfolio-building phase.
The same principle applies when comparing markets. An established Canberra property and a house in a growing NSW South Coast market could play very different roles within the same portfolio. Their value should be assessed against the investor's objectives, risk tolerance, cash flow requirements and time horizon — not simply which produced the highest ROE last year.
Don't Forget the Tax Implications
Tax can also materially affect a decision to sell and reinvest.
An investment property with a significant unrealised capital gain may create a capital gains tax consequence when sold. Transaction and selling costs can further reduce the amount available to reinvest.
Tax should not be the sole reason to retain or dispose of an asset, but these costs need to be included when comparing your options.
A disciplined portfolio review should consider capital growth potential, rental income, debt, tax, risk, time horizon and personal borrowing capacity.
ROE adds something important to that assessment: it makes the opportunity cost of your equity more visible.
The Real Value of Return on Equity
The greatest benefit of ROE isn't the percentage itself.
It is the discipline the calculation brings to portfolio decisions.
Rather than holding every property indefinitely simply because it has increased in value — or selling as soon as significant equity becomes available — you can regularly assess whether each property is still performing the role it was purchased to perform.
At iStrategic, we look beyond a single metric and return to the investor's broader objectives: financial security, sustainable debt, flexibility and long-term wealth creation.
Depending on the evidence, the right decision might be to hold, improve, refinance, reduce debt, sell or reinvest.
A strong property investment strategy isn't about constantly chasing another purchase. It's about understanding what the assets you already own are doing for you.
If you haven't reviewed your portfolio recently, iStrategic offers a free property portfolio review to help you assess how your existing properties and equity align with your longer-term investment strategy.
About the Author
Aiden Haworth is the founder of iStrategic and works with Australian property investors to build and review evidence-led property investment strategies. Through iStrategic, Aiden helps investors assess their portfolios, identify opportunities and make property decisions aligned with their long-term financial objectives. Learn more on the About Aiden page or the About iStrategic page.
Financial Disclaimer
This content is for informational and educational purposes only and does not constitute financial, investment, tax or legal advice. Property investment involves risk, and past performance is not a guarantee of future results. Consider your personal circumstances and seek appropriate professional advice before making investment decisions.
Frequently Asked Questions
1. What is return on equity in property investment?
Return on equity measures the return an investment property generates relative to the equity you currently have tied up in it. It can be calculated using cash flow, capital growth or both, provided you use a consistent method.
2. How do you calculate return on equity on an investment property?
Divide the property's annual return by your equity in the property and multiply the result by 100. Equity is generally the property's current market value minus the debt secured against it.
3. What is a good return on equity for an investment property?
There is no single ROE percentage that is "good" for every investor. The result should be considered alongside the property's future growth prospects, cash flow, risk, tax position, debt structure and your personal investment strategy.
4. Should I sell an investment property if its return on equity is low?
Not necessarily. A low ROE is a reason to investigate the property's performance rather than an automatic sell signal. Tax, transaction costs, future growth prospects and your overall portfolio strategy should also be considered.
5. How can I tell if the equity in my property could be working harder?
Review the property's current value, debt, cash flow and likely future growth, then compare the expected return on your equity with realistic alternatives. A property portfolio review can help identify whether holding, refinancing, improving, reducing debt or selling deserves further consideration.