Do I pay tax on trading income?

Do You Pay Tax on Trading Income?

If you're actively buying and selling shares on a regular basis, you might not just be investing—you could be running a business of share trading. That distinction matters when tax time comes around.

The Australian Taxation Office (ATO) looks at your pattern of trading to determine whether you're a trader or an investor. If you're considered a share trader, your profits aren't treated as capital gains—they're counted as ordinary income. That means every dollar you make from selling shares is added to your assessable income and taxed at your marginal tax rate.

But it's not all downside. As a trader, you can also claim deductions for losses and expenses incurred in the course of your trading activities. This includes brokerage fees, subscription costs for market data, and even a portion of home office expenses if you're running your operation from home. The key is consistency: frequent trading, a business-like approach, and records that show you're operating with the intention of making a profit.

In contrast, if you're an investor, your gains are typically subject to capital gains tax (CGT), and you may qualify for the 50% CGT discount if you hold shares for over 12 months. Traders, however, don’t get that discount—they’re in it for the short-to-medium term, treating the market like a business rather than a long-term portfolio play.

So, do you pay tax on trading income? Yes—if the ATO sees you as a trader, your profits are taxable as income. But with that comes the ability to offset losses and claim legitimate costs. The bottom line? Keep detailed records and consult a tax professional to make sure you’re on the right side of the rules.