Australian Capital Gains Tax (CGT) Discount Calculator
Calculate CGT liabilities and holding discounts for assets sold in Australia.
Australian CGT Discount Calculator
Calculate your Australian Capital Gains Tax (CGT) liability on shares, crypto, or investment property sales. Factors in the 50% 12-month discount and capital loss offsets.
📈 Asset Sale Parameters
How Australian Capital Gains Tax (CGT) Works
In Australia, Capital Gains Tax (CGT) is not a separate tax rate; instead, your net capital gain is added directly to your assessable income for the financial year and taxed at your marginal income tax rate.
The 12-Month 50% CGT Discount Rule
If an individual or trust owns an asset (such as Australian shares, cryptocurrency, or investment real estate) for **at least 12 months** before selling, the ATO grants a **50% CGT discount**. Only 50% of the net capital gain is added to your taxable income!
Worked Example: $15,000 Capital Gain ($85,000 Base Salary)
| Holding Period | Gross Gain | Taxable Amount Added | Estimated CGT Owed (32%) |
|---|---|---|---|
| Under 12 Months (6 mos) | $15,000 | $15,000 (100%) | $4,800 |
| Over 12 Months (14 mos) | $15,000 | $7,500 (50% Discount) | $2,400 (-$2,400 Saved) |
Frequently Asked Questions (FAQ)
Do companies qualify for the 50% CGT discount?
No. The 50% CGT discount is available only to Australian individuals and eligible trusts. Companies pay a flat 25% or 30% tax on 100% of capital gains regardless of holding period.
Educational Purpose Disclaimer
This calculator is provided for informational and educational estimation purposes only. All calculations and projections are based on standard mathematical formulas and assumed inputs. The output values should not be considered professional financial, legal, tax, or medical advice. ProCalc is not a registered financial advisor or licensed practitioner. Always consult a qualified professional (such as a Chartered Accountant, certified planner, or physician) before making major decisions.
What is the Australian Capital Gains Tax (CGT) Discount Calculator?
The Australian Capital Gains Tax (CGT) Discount Calculator is a tax-planning tool designed to help investors estimate their CGT liability on the sale of assets like shares, property, or cryptocurrency under Australian tax law.
In Australia, capital gains are not taxed under a separate tax system; instead, they are added to your personal taxable income for the financial year in which the asset is sold. This can push you into a higher tax bracket, increasing your tax liability:
• The 50% CGT Discount: Individuals and trust entities who hold an asset for at least 12 months before selling are entitled to a 50% discount on the capital gain. This means only half of the net profit is added to your taxable income. For example, a $10,000 gain held for over a year is taxed as a $5,000 addition.
• Short-Term Gains: If you hold an asset for less than 12 months, you must pay tax on 100% of the capital gain at your marginal tax rate.
• Capital Losses: If you sell an asset at a loss, you cannot deduct the loss from your regular wage income. However, you can use capital losses to offset capital gains in the current year or carry them forward indefinitely to offset future gains.
This calculator computes your gross profit, applies deductible transaction costs (such as brokerage or agent commission), applies the 50% discount if eligible, and estimates the final tax payable based on your marginal tax bracket.
How Does the Australian Capital Gains Tax (CGT) Discount Calculator Work?
1. Input purchase and selling prices. 2. Input ownership duration. 3. Input other taxable income and capital losses. 4. View CGT owed and net profit.
Formula & Calculation Method
Gain = selling price - purchase price. Applies 50% discount if held >= 12 months. Adds discounted gain to other income to estimate marginal tax difference.
Example Calculation
Gain of $15k, held 14 months, other income $85k. 50% discount makes taxable gain $7.5k. Marginal tax on $7.5k is ~$2,588.
Frequently Asked Questions

Gain = selling price - purchase price. Applies 50% discount if held >= 12 months. Adds discounted gain to other income to estimate marginal tax difference.
Disclaimer: This tool is provided for informational and calculation purposes. Output values are estimates based on standard user inputs.