How this calculator works
Australian rents are conventionally quoted weekly, so this calculator first converts your weekly rent to an annual figure (weekly rent × 52). Gross yield is the simplest measure:
Gross yield = (Annual rent ÷ Property value) × 100
Net yield subtracts your annual operating expenses (but not loan interest) before dividing by property value. Separately, the calculator works out your negative-gearing cashflow: annual rent minus annual expenses minus the full annual loan interest cost. If that figure is negative, the property is negatively geared โ the shortfall can be claimed as a tax deduction against your other income at your marginal tax rate, producing a tax benefit that partially, but not fully, offsets the cash shortfall.
Worked example
Consider a $700,000 investment property renting for $550 a week ($28,600 a year), with $6,000 a year in operating expenses, financed with a $560,000 loan at 6.5% โ an annual interest cost of $36,400. Gross yield comes out at roughly 4.09%. Rent minus expenses minus interest leaves a shortfall of around $13,800 a year before tax โ this property is negatively geared. At a 32.5% marginal tax rate, the investor recovers roughly $4,485 of that shortfall as a tax benefit, leaving a net after-tax cash cost of about $9,315 a year โ still a real out-of-pocket cost, just a smaller one than the pre-tax shortfall suggests.
What affects your result
- Purchase price vs. achievable rent โ the biggest driver of yield; markets with lower property prices relative to rents tend to show higher yields.
- Operating expenses โ council rates, insurance, agent fees, maintenance, and strata/body corporate fees all reduce net yield and cashflow below the headline gross figure.
- Loan amount and interest rate โ a higher rate or larger loan increases annual interest cost, pushing the property further into negative-gearing territory.
- Your marginal tax rate โ a higher marginal rate produces a larger tax benefit from a given negative-gearing shortfall, partially offsetting more of the cash cost.
A note on accuracy
This calculator computes on full, unrounded figures and rounds only for display. It does not account for capital gains tax on eventual sale, depreciation (capital works or plant & equipment) deductions, or the specific treatment of your other income and deductions โ consult a tax professional for guidance on your situation. For general guidance on rental property tax treatment in Australia, see the Australian Taxation Office โ Residential rental properties.