If you have sold shares, ETFs, property or any other investment in Australia, you most likely owe capital gains tax on your profit. CGT is one of the most misunderstood areas of Australian tax law, and making mistakes here can cost you significantly more than you need to pay.
The good news is that Australia has one of the most generous CGT systems in the world for long term investors. If you hold your investments for more than 12 months, you can potentially cut your tax bill in half. This guide will walk you through everything Australian investors need to know about CGT, from the basics to advanced strategies that help you keep more of what you earn.
What is Capital Gains Tax in Australia
Capital gains tax in Australia is not a separate tax. It is actually part of your income tax. When you make a profit on the sale of an asset, that profit is added to your taxable income for that financial year and taxed at your marginal income tax rate.
A capital gain is calculated simply. You take the amount you sold the asset for and subtract the amount you originally paid. The difference is your capital gain.
For example, if you bought AUD 5,000 worth of VAS ETF units and later sold them for AUD 8,000, your capital gain is AUD 3,000. This AUD 3,000 is added to your income for that year and taxed accordingly.
The 50 Percent CGT Discount, The Most Important Rule for Australian Investors
This is the rule that makes long term investing in Australia so tax advantageous. If you hold an investment for more than 12 months before selling, you are entitled to a 50 percent CGT discount.
Using the same example above, if you held your VAS units for more than 12 months before selling, only half of your AUD 3,000 gain, which is AUD 1,500, is added to your taxable income. You pay zero tax on the other half.
For someone earning AUD 80,000 who is in the 32.5 percent tax bracket, this discount reduces their CGT on a AUD 3,000 gain from AUD 975 to just AUD 487.50. The saving is substantial and grows even larger as your investment gains grow.
This 50 percent discount is available to individual investors and trusts but not to companies. This is one of the reasons many Australian investors hold shares personally rather than through a company structure.
What Assets Attract Capital Gains Tax in Australia
CGT applies to most assets you own and sell for a profit in Australia. This includes:
Shares and ETFs listed on the ASX. International shares bought through platforms like Stake. Property, including investment properties and holiday homes. Cryptocurrency. Managed funds. Collectables worth more than AUD 500 such as art and jewellery.
Some assets are specifically exempt from CGT. Your primary place of residence is generally exempt provided you have lived in it and meet the ATO’s requirements. Personal use assets worth less than AUD 10,000 are also exempt. Cars are specifically excluded from CGT regardless of their value.
Capital Losses and How They Help You
Not every investment goes up. When you sell an asset for less than you paid, you have made a capital loss. Capital losses in Australia can be used to offset capital gains in the same year, which can significantly reduce your tax bill.
If your capital losses in a year exceed your capital gains, you cannot deduct them against your ordinary income. Instead, the remaining losses are carried forward to future years where they can be applied against future capital gains.
This creates an important tax strategy. If you have unrealised losses in your portfolio and you also have large capital gains to report, you may want to consider selling the loss making investments before the end of the financial year to offset your gains. This is known as tax loss harvesting.
How to Calculate Capital Gains Tax on Shares in Australia
Calculating CGT on shares requires keeping careful records. Here is the step by step process.
First, identify the cost base of your shares. This is the price you paid plus any additional costs related to acquiring them, such as brokerage fees. For example, if you paid AUD 5,000 for shares and AUD 9.95 brokerage, your cost base is AUD 5,009.95.
Second, calculate your proceeds. This is the selling price minus any costs of selling, including brokerage fees.
Third, calculate the gain. Proceeds minus cost base equals your capital gain.
Fourth, apply the 50 percent discount if you held for more than 12 months.
Fifth, add the discounted gain to your total taxable income and calculate your tax at your marginal rate.
CGT on ETFs in Australia
ETFs work slightly differently from regular shares for CGT purposes. When you sell ETF units, you calculate your gain the same way as shares. However, some ETFs also make internal sales of assets within the fund during the year and distribute capital gains to investors. These internal distributions are called attributable income and appear on your annual tax statement from the ETF provider.
Providers like Vanguard and BetaShares send you a tax statement each year that shows exactly what distributions you need to report. Keep these statements carefully as they form part of your annual tax return.
CGT and Your Annual Tax Return
CGT is reported in your annual income tax return, which covers the period from 1 July to 30 June each year. You need to report all capital gains and losses from asset sales during the financial year.
If you use a tax agent or accountant, provide them with records of every sale including the original purchase date, purchase price, sale date and sale price. If you complete your own tax return using myTax, the ATO provides a capital gains section where you enter these details.
Many Australian brokerage platforms provide an annual tax report that summarises your trades and makes this process easier. Stake, Pearler and CommSec all provide these reports for download.
Strategies to Legally Reduce Your CGT in Australia
There are several legitimate strategies Australian investors use to minimise their capital gains tax.
Hold for more than 12 months. This is the single most powerful CGT reduction strategy available in Australia. Never sell an investment before the 12 month mark if you can avoid it.
Use your superannuation. ETF and share investments held inside your superannuation fund attract a maximum CGT rate of just 10 percent (after the one third discount within super), compared to your marginal rate which could be up to 47 percent. For long term wealth building, maximising your super contributions is one of the most tax efficient strategies available.
Spread sales across financial years. If you need to sell a large investment, consider selling some in June and some in July to spread the capital gain across two financial years. This can keep you in a lower tax bracket in each year.
Offset with losses. Strategically realise capital losses before year end to offset gains. Be careful of the wash sale rules, which can deny your loss if you buy back the same or substantially identical asset too soon after selling.
Donate to charity. If you donate appreciated assets directly to registered charities, you may be able to access specific concessions. Seek advice from a tax professional before using this strategy.
Record Keeping for CGT
The ATO requires you to keep records of every asset acquisition and sale for CGT purposes. You must keep these records for five years after you dispose of the asset. For long term investors, this could mean keeping records for many decades.
At a minimum, keep records of the date you bought each investment, the price you paid, any additional acquisition costs like brokerage, the date you sold, the sale price, and any sale costs.
Using a dedicated portfolio tracker or simply keeping a well organised spreadsheet makes this much easier. Most brokerage platforms in Australia also maintain a transaction history that can help reconstruct records if needed.
Getting Help with Your CGT
Capital gains tax can become complex, particularly if you have multiple investments across shares, property and other asset classes. For straightforward situations with just a few share sales, the ATO’s myTax is sufficient. For more complex situations, a registered tax agent can help ensure you claim all the concessions you are entitled to and do not pay more than necessary.
For more on Australian investing taxes, read our guide to tax on ETF dividends and franking credits in Australia. You can also explore our superannuation guide to understand how investing inside super can dramatically reduce your long term tax bill.
This article is for educational purposes only and does not constitute tax advice. Please consult a registered tax agent or the ATO for advice specific to your situation.