Calculate your investment property cash flow, tax benefit and true weekly out-of-pocket cost — now with the negative gearing quarantine that starts 1 July 2027 applied automatically based on your contract date.
Negative gearing changes for some investors from 1 July 2027 — what changes
LVR: 80%
$28,600/yr gross
Usually 7–10% of gross rent
For units/apartments
Non-cash deduction — get a QS report
Select the bracket matching your total income
Rent MINUS the costs of those properties, not gross rent. s26-155(6)(a) brings back only the amount by which their income exceeds their deductions, so a property earning $30,000 against $28,000 of costs contributes $2,000 here, not $30,000.
Not sure if this applies to you? Check grandfathering on its own.
Grandfathered — full negative gearing continues to apply, unaffected by the 1 July 2027 changes.
Weekly cost (pre-tax)
$416
Weekly cost (after tax)
$283
Annual tax saving
$6,922
Gross yield
3.57%
Deductible Expenses
Your $21,631 annual cash shortfall is reduced to $14,709 after the tax benefit — saving $6,922/yr.
Negative gearing occurs when the costs of owning an investment property (including loan interest) exceed the rental income it generates. The resulting loss is deductible against your other income, reducing your overall tax bill — and for an established dwelling contracted after 7:30pm AEST on 12 May 2026, that stops from the 2027-28 income year, when the loss can only be offset against residential rental income or a residential capital gain.
For example, if your rental property costs you $15,000 more per year than it earns, and your marginal tax rate is 32%, you receive a $4,800 tax refund — reducing your real out-of-pocket cost to $10,200.
Australia has had one of the most generous negative gearing systems in the world, and it has been widely used by property investors to reduce taxable income while hoping for long-term capital growth to offset the ongoing losses. The 2026 reform narrows that considerably: it leaves pre-cutoff purchases and new dwellings alone, and quarantines the rest.
Estimates only. Not financial or tax advice. Full disclaimer for your rights and our limitations of liability.
This calculator exists to show you the arithmetic. It applies published Australian rates, thresholds and formulas to the numbers you enter and shows the working, so you can check it. That is all it does — it produces a number and describes what the number is. It does not recommend anything and it holds no opinion about any financial product.
What can move this result
Why these default assumptions are reasonable
This calculator is not intended to be relied on for the purposes of making a decision in relation to a financial product. Before you make a financial decision, consider obtaining advice from someone who holds an Australian Financial Services Licence. We do not, and we cannot advise you.