Investment Property Calculators

An investment property calculator provides an estimate based on the inputs you enter, such as loan amount, interest rate, rental income, and expenses. While it is highly useful for scenario modelling, it does not replace professional advice or lender credit assessment. Used correctly alongside other calculators, it becomes a strategic planning tool rather than just a rough estimate.

Professional investors use calculators not just for a single purchase, but for modelling long-term portfolio performance. They help you compare principal & interest vs interest-only loans, model extra repayments, assess refinance options, and evaluate compound growth — allowing for data-driven expansion rather than emotional decision-making.

For Australian investors, market conditions, lending policy, and tax settings can significantly impact returns. Calculators help you account for stamp duty, model refinancing, estimate tax impact, and compare repayment strategies. This layered approach reduces guesswork and improves decision quality.

Capital gains are calculated by subtracting the property’s cost base (purchase price plus eligible costs such as stamp duty, legal fees, and improvements) from the sale price. In Australia, CGT is generally payable when the property is sold, not when it increases in value. If you’ve held the property for more than 12 months, you may be eligible for a 50% CGT discount as an individual taxpayer.

No, capital gains tax is only triggered when you sell the property, not while you’re holding it. The gain is added to your taxable income for the financial year in which the sale occurs. Modelling different sale timelines using a compound interest calculator can help you understand whether holding longer improves your after-tax position.

A borrowing power calculator estimates your likely borrowing capacity using your income, living expenses, existing debts, dependents, interest rate assumptions, and loan term — giving you a practical starting point before you shortlist properties.

The best calculators let you adjust income, expenses, and debts to see how different scenarios affect your result. A single calculator is useful when you want to test one property scenario in isolation before comparing multiple outcomes. Used properly, they become a planning tool that helps you set a realistic purchase range.

A property investment loan calculator is most useful when it lets you compare loan size, interest rate, term, and repayment frequency so you can test different investment scenarios, including rate rises.

A loan repayment calculator estimates repayments and total interest based on loan amount, interest rate, loan term, repayment frequency, and loan type (e.g., principal & interest vs interest-only).

A fortnightly repayment calculator helps you compare fortnightly vs monthly repayments and estimate potential interest savings and time saved over the loan term.

An extra repayment calculator shows how extra payments can reduce your loan term and total interest — a smart follow-up after using a borrowing power calculator to avoid borrowing to the limit without buffers.

A lump sum repayment calculator estimates how a one-off payment could reduce interest and shorten your remaining loan term.

A how-long-to-repay calculator estimates your payoff timeline based on your balance, rate, repayment amount, and any extra repayments or annual lump sums.

A mortgage switching calculator helps you compare your current loan with potential new options and estimate whether switching could improve repayments or long-term interest costs.

A split loan calculator helps you model fixed and variable portions, balancing certainty and flexibility while keeping your plan aligned with your cash flow.

A property buying cost calculator estimates key purchase costs (like stamp duty and other fees) so you don’t confuse a borrowing power estimate with the total cash you need to complete a purchase.

A property selling cost calculator estimates common selling costs (like agent commission, marketing, and legal fees) to help you understand likely net proceeds.

An income tax calculator estimates tax payable (and common items like the Medicare levy and HELP/HECS where applicable) so you can plan take-home pay before you run a borrowing power calculator.

A budget planner helps you map income, expenses, and savings targets so your estimates match real-life cash flow.

A savings calculator estimates how long it may take to reach a target based on your starting balance, contributions, and interest assumptions.

A compound interest calculator shows how money can grow through compounding over time and helps you compare contribution and timeframe scenarios.

A credit card calculator helps you estimate payoff time and interest costs based on your balance, interest rate, and repayment amount.

An income annualisation calculator converts income from weekly, fortnightly, or monthly pay into an annual figure for budgeting and applications.

An income gross-up calculator estimates the gross income required to produce a target net amount, helping you compare salaries and budgets.