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The Global Insight

Can capital gains losses be carried back?

Author

Sarah Garza

Updated on March 14, 2026

Capital Losses A capital loss can be offset against capital gains of the same tax year, but cannot be carried back against gains of earlier years. If you have an unused capital loss, this can be carried forward indefinitely against gains of future years.

Do capital losses cancel out capital gains?

Yes, but there are limits. Losses on your investments are first used to offset capital gains of the same type. Any excess net capital loss can be carried over to subsequent years to be deducted against capital gains and against up to $3,000 of other kinds of income.

How to calculate capital gains with losses carried over?

When you work out your net capital gain or net capital loss, you need to base your calculation on the following order the small business retirement exemption or rollover. This means if you exhaust the current year capital gains with current or previous year’s losses you don’t have a CGT discount amount.

Where does capital gain go on a tax return?

A taxable capital gain is included in a taxpayer’s taxable income in terms of section 26A and an assessed capital loss is carried forward to be offset against capital gains in future years of assessment.

Can You claim CGT on capital gains carried over?

the small business retirement exemption or rollover. This means if you exhaust the current year capital gains with current or previous year’s losses you don’t have a CGT discount amount. The discount can only reduce the tax payable to zero – you can’t claim a refund for a capital loss. Check out our guide to capital gains tax for more information.

Where do you enter zero at net capital gain?

Where: Zero at ‘Net capital gain’. This value is based on the calculation A minus B minus C; if your total value is a negative number (a loss) the instructions state to enter 0 A new value – E – at ‘Net capital loss carried forward to later income years’.