Business & Investment

Stock Portfolio Calculator Australia 2026

Track your stock holdings, gains/losses and estimate Australian capital gains tax.

Holdings

$
$
$

Portfolio Summary

Total Cost

$0

Current Value

$0

Total Gain/Loss

$0 (+0.0%)

Taxable CGT

$0

Holdings Breakdown

Stock Cost Value Gain/$ Gain/% CGT
Total $0 $0 $0 +0.0% $0

Capital Gains Tax (CGT) Estimate

Your estimated taxable capital gain is $0. This amount is added to your assessable income and taxed at your marginal tax rate. Holdings held over 12 months receive the 50% CGT discount.

Note: Capital losses can offset capital gains. Brokerage (buy & sell) has been included in the cost base. This is an estimate only.

How the Stock Portfolio Calculator Works

Cost Base

Your cost base includes the purchase price × quantity, plus brokerage for both the buy and sell trades. This is used to determine your capital gain or loss on each holding.

50% CGT Discount

Australian individuals who hold an asset for more than 12 months before selling are entitled to a 50% discount on the capital gain. This can significantly reduce your tax liability.

Capital Losses

Capital losses can be used to offset capital gains in the same financial year. Unused losses can be carried forward to future years. Losses do not receive the 50% discount.

Disclaimer

This calculator provides estimates only and does not constitute financial or tax advice. Actual CGT liability depends on your full tax situation. Consult a qualified tax professional for personalised advice.

Frequently Asked Questions

How is capital gains tax calculated on shares in Australia?
Capital gains tax (CGT) applies when you sell shares for more than you paid. The gain is added to your taxable income. If you held the shares for more than 12 months, you receive a 50% CGT discount — you only pay tax on half the gain.

What is the CGT discount for shares held over 12 months?
Australian individual taxpayers receive a 50% discount on capital gains for assets held longer than 12 months. For example, a $10,000 gain on shares held for 2 years means only $5,000 is added to your taxable income.

How do I calculate my total return on shares?
Total return includes both capital gains (price increase) and income (dividends). The formula is: ((Current Value + Dividends Received - Purchase Cost) / Purchase Cost) x 100. Don't forget to include brokerage fees in your cost base.

Are franking credits included in this calculator?
This calculator focuses on capital gains and portfolio value. Franking credits (dividend imputation) reduce your tax on dividends — you receive a credit for the company tax already paid. Use your tax return to claim these.

Related Calculators

Income Tax Calculator

Simple vs Compound Interest

Term Deposit Calculator

Last updated: April 2026

This calculator is free forever. If it helped you, consider buying us a coffee ☕