How does capital gains tax work when I sell an investment property?
When you sell an investment property in NSW, any profit above what you paid (plus buying and selling costs) is added to your taxable income as a capital gain and taxed at your marginal rate. If you've owned the property for more than 12 months, you generally get a 50% discount on that gain. There's no separate 'capital gains tax' rate — it's just added to your normal income tax for that financial year.
The Fuller Picture
Capital gains tax (CGT) isn't a separate tax in Australia — it's part of your income tax. When you sell an investment property, the gain (sale price minus your cost base, which includes the purchase price, stamp duty, legal fees, and some renovation costs) gets added to your assessable income for that financial year. If you've held the property for at least 12 months, only half of that gain is taxed, thanks to the CGT discount for individuals. Sell within 12 months and the full gain is taxed at your marginal rate.
It gets more complicated once you factor in things like periods the property was your main residence, partial exemptions if you moved out and rented it, or if you're selling as a couple, company, or trust — each structure is treated differently. Capital losses from other investments can also be offset against the gain, and unused losses can carry forward to future years. The cost base itself is often underestimated — many owners forget to include agent fees, conveyancing costs, and capital improvements, all of which reduce the taxable gain.
The ATO's main residence exemption and the six-year absence rule are the two most relevant provisions for buyers who later convert a former home into an investment property, or vice versa. There's no NSW-specific CGT scheme — it's a federal tax administered by the ATO — but the timing of settlement (which financial year it falls in) can shift when the tax bill actually lands.
What This Means for Your Purchase
If you're buying with an eye to eventually selling, the 12-month ownership mark matters more than it might seem. Buyers who plan to renovate and flip within a year should budget for full CGT on the gain, not the discounted rate, which changes whether the numbers actually stack up.
Record-keeping from day one — the purchase contract, stamp duty receipt, conveyancing invoice, and any capital works — directly reduces your future tax bill by expanding your cost base. Buyers who skip this often pay more CGT than they need to simply because they can't substantiate their costs years later.
Financially, CGT is triggered by the contract of sale, not when you receive the funds, and it's assessed in the financial year the contract is signed. This timing can matter if you're planning a sale near the end of a financial year, since it may be worth bringing forward or delaying settlement to manage your total taxable income for that year — a conversation worth having with an accountant before signing anything.
How This Shows Up in the Illawarra
Investment buyers in suburbs like Warrawong, Berkeley, and Bellambi — where entry prices are often below $650,000 — sometimes plan a shorter hold to capture renovation-driven gains. These buyers need to be especially aware that selling before the 12-month mark removes the CGT discount entirely, which can materially change the return on a quick renovate-and-sell strategy.
Longer-term Illawarra investors, particularly those holding coastal or escarpment properties in areas like Thirroul or Austinmer that have seen strong capital growth, tend to face larger gains — and larger tax bills — on eventual sale. For these owners, a depreciation schedule and accurate cost-base records built up over years of ownership make a meaningful difference to the after-tax return when the property eventually sells.
Frequently Asked Questions
Do I pay CGT if I sell at a loss?
No — a capital loss isn't taxed, and it can usually be offset against other capital gains, either now or in future years.
Is CGT the same as stamp duty?
No. Stamp duty is paid by the buyer on purchase; CGT is paid by the seller on any profit made when the property is later sold.
Does CGT apply if this becomes my first home?
If you live in the property as your main residence for the entire ownership period, it's generally exempt from CGT — the tax mainly applies to investment or rental properties.
When exactly is CGT calculated — settlement or contract date?
The ATO uses the contract date, not the settlement date, to determine which financial year the gain falls into.
Can I reduce my CGT bill by timing the sale?
Sometimes. Settling in a lower-income year, holding past 12 months for the discount, or offsetting against a capital loss are common strategies, but they should be discussed with an accountant.
Can a buyers agent help with CGT planning?
A buyers agent can't give tax advice, but a good one will flag CGT-relevant timing and cost-base considerations when helping you plan an investment purchase, and point you to a qualified accountant for specifics.
If you're weighing up an investment purchase and want to understand how the numbers play out at resale, we're happy to talk it through. Reach out any time — no pressure, just a straightforward conversation.
