From the 2020 financial year, the carry forward rule allows Members to contribute unused concessional contribution cap from up to 5 previous financial years.
To use your unused cap amounts your total super balance at the end of 30 June of the previous financial year needs to be less than $500,000. You are then able to add unused amounts to your original concessional contributions cap of $25,000 ($27,500 from 1 July 2021).
John is an employee and only receives super guarantee contributions from his employer. John’s super balance is less than $500,000 over the five years. John has a significant unused portion. John could utilise carry-forward concessional contributions to use any of this unused cap by making addition contributions into his super. In financial year 2022/2023, John could make a $102,000 concessional contribution to super on top of the $6,000 he receives from his employer.
The ATO have a full index of listings regarding the concessional contributions cap amount and unused amount. For more information please refer to the ATO website here.