Negative Gearing Calculator — Tax Benefit of Investment Property
Calculate the tax benefit of negative gearing on your Australian investment property. See how rental losses reduce your taxable income and overall tax bill.
Negative gearing occurs when your investment property rental income is less than the total expenses (mortgage interest rates body corporate insurance maintenance depreciation). The loss can be offset against your other income reducing your total taxable income and therefore your tax bill. At a marginal tax rate of 37% a $10000 rental loss saves $3700 in tax. Negative gearing remains one of Australia most popular tax strategies for property investors.
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Key Information
| Parameter | Details |
|---|---|
| Tax Benefit Rate | Equal to your marginal tax rate |
| Common Marginal Rates | 32.5% / 37% / 45% |
| Key Deductions | Interest depreciation insurance repairs |
| Capital Gains Discount | 50% for properties held 12+ months |
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Use Calculator NowFrequently Asked Questions
How does negative gearing reduce tax?
If your investment property has $30000 rental income and $40000 expenses (including $25000 mortgage interest $8000 depreciation and $7000 other costs) you have a $10000 net rental loss. This $10000 reduces your salary income from say $100000 to $90000 for tax purposes. At 37% marginal rate this saves $3700 in tax.
Is negative gearing worth it?
Negative gearing only makes financial sense if the property appreciates in value enough to more than offset the ongoing cash losses. A property losing $10000 per year must appreciate by at least $10000 per year (after capital gains tax) to break even. In strong growth markets like Sydney and Melbourne this has historically been achievable but it is not guaranteed and represents significant risk.
What expenses can I claim on investment property?
Deductible expenses include: mortgage interest (not principal) property management fees insurance council rates water rates body corporate fees repairs and maintenance (not improvements) pest control cleaning advertising for tenants travel to inspect property (limited) and depreciation of building and fixtures. Keep all receipts and consider a quantity surveyor report for depreciation deductions.
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Last updated: March 2026