There are four small business CGT concessions available. These concessions may apply to CGT events (for example, the disposal of a CGT asset) that happen after 11.45am on 21 September 1999. Any capital gain that results from a CGT event may be reduced or disregarded under the small business concessions if you satisfy certain conditions.
The small business 15-year exemption
This concession provides a total exemption of a capital gain if you have continuously owned the CGT asset for at least 15 years and the relevant individual is aged 55 or over and retiring, or is permanently incapacitated.
The small business 50% active asset reduction
This concession provides a 50% reduction of a capital gain.
The small business retirement exemption
This concession provides an exemption of capital gains up to a lifetime limit of $500,000. If you are under 55 years of age just before you make the choice, the amount must be paid into a superannuation (or similar) fund.
The small business rollover
This concession allows you to defer a capital gain from the disposal of a business asset for a minimum of two years. If you acquire a replacement asset or make a capital improvement to an existing asset, you can defer the capital gain for longer - until the asset is disposed of or its use changes in particular ways. Either will cause the deferred capital gain to crystallise. This means you would make a capital gain equal to the deferred gain (in addition to any capital gain made on the disposal of the replacement or capital improved asset).