Skip to content

Capital Gains Tax

Capital Gains Tax Explained

How capital gains tax works in Australia: CGT events, cost base, the 50% discount, the main residence exemption, capital losses and crypto.

Published 2 min readCapital Gains TaxRental Property Tax

Key takeaways

  • A net capital gain is added to your income and taxed at your marginal rate.
  • Individuals and trusts can generally discount gains by 50% after 12 months; companies can't.
  • Your home is generally exempt if it was your main residence throughout.
  • Capital losses only offset capital gains — they carry forward indefinitely.

Capital gains tax (CGT) isn't a separate tax. When you sell an asset such as an investment property, shares or crypto for more than it cost, the net capital gain is included in your taxable income.

When does CGT apply?

CGT applies when a 'CGT event' happens — most commonly when you sell or dispose of an asset. For property, the event generally happens on the date you sign the contract, not at settlement, which can determine the financial year the gain falls in. Swapping one cryptocurrency for another is also generally a CGT event.

Working out the gain

Your capital gain is the sale proceeds less the cost base. The cost base includes the purchase price plus incidental costs such as stamp duty and legal fees, capital improvements, and selling costs such as agent commissions.

Example: selling an investment property held for more than 12 months
ItemAmount
Sale price$850,000
Purchase price−$600,000
Stamp duty and legal fees on purchase−$30,000
Capital improvements−$20,000
Agent and legal fees on sale−$18,000
Capital gain$182,000
50% CGT discount−$91,000
Net capital gain added to taxable income$91,000

The 50% discount

Individuals and trusts can generally reduce a capital gain by 50% if they owned the asset for at least 12 months. Complying super funds receive a one-third discount. Companies don't receive a discount. Foreign residents generally can't access the discount for gains accrued after 8 May 2012.

Your home

Your main residence is generally exempt from CGT. If it was rented out or used to produce income for part of the time, a partial exemption may apply. In some cases, you can continue to treat a former home as your main residence for up to six years while it's rented out.

Capital losses

Capital losses can only be offset against capital gains, not against salary or other income. They're applied before the discount, and unused losses carry forward to future years.

General information only. This article doesn't take into account your personal circumstances and isn't a substitute for professional advice. Tax rules and thresholds change — check current details with the ATO or contact us for advice specific to you.

Published by

ANS Taxation & Accounting

Melbourne accounting and tax practice

Registered Tax Agent26382734Tax Practitioners Board · Verify ↗

Ready for clearer numbers?

Book a consultation and let's talk about your tax, accounting or bookkeeping needs. No obligation — just a clear conversation about how we can help.

Call Us TodayBook a Consultation