What is the difference between an investor and a trader for tax purposes?
Understand how the ATO distinguishes between an investor and a trader and why the difference matters.
Summary
For tax purposes, an investor holds shares or other assets as capital investments and is subject to capital gains tax on their gains. A share trader carries on a business of buying and selling shares, and their profits are ordinary income (with shares treated as trading stock).
What this means
The ATO looks at the overall pattern of activity, not a single factor, to work out whether someone is investing or carrying on a share-trading business. Relevant factors include the nature and purpose of the activity, repetition and regularity, volume, organisation, record keeping and whether the activity is conducted in a business-like way.
For investors, gains are generally dealt with under the CGT rules and capital losses can only be used against capital gains. Under the current rules, eligible discount gains may receive the CGT discount after 12 months; however, gains accruing from 1 July 2027 are subject to new inflation-based indexation and a minimum 30% tax rate for most affected investors. For share traders, profits are ordinary income, losses may be deductible subject to relevant rules, and shares are generally treated as trading stock.
Typical actions
- Consider your overall pattern of buying and selling.
- Keep detailed records of transactions, research and business systems.
- Understand which treatment applies to your current activity.
- Be aware that changing classification later has tax consequences.
- Speak with a registered tax agent if unsure about your status.
Official sources
Last checked: 25 August 2026
Share investing versus share trading
Main ATO page on the difference between investing and trading in shares.
Budget 2026–27 tax system changes
Treasury explains the CGT changes commencing from 1 July 2027.
Related questions
- How does capital gains tax work?
- What is the CGT discount and how does it work?
- What is a capital loss and how can it be used?
- What records should investors keep for CGT?
Important notice: Tax Clarity is an independent information tool. This page provides general information based on official sources. It does not provide tax, legal, financial, or accounting advice. Tax rules can change, and how they apply depends on your circumstances. For advice about your situation, speak with a registered tax agent or qualified professional.
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