ATO Small Business Clearing House Shutdown key dates

5.30pm AEDT on 15 December 2021 - all Super guarantee (SG) payments received after close of business on this date will be processed from 4 January 2022

28 January 2022 - SG quarterly payments are due.

https://www.ato.gov.au/Newsroom/smallbusiness/Lodging-and-paying/Super-clearing-house-end-of-year-dates/?sbnews20211130