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System outages

Information for stakeholders affected by USI Registry System outages

Current releases and outages

There is currently no scheduled maintenance or outage.

Past releases and outages

Start dateEnd dateAdditional information
5:00 pm AEDT Wednesday 18 March 2026 8:00 pm AEDT Wednesday 18 March 2026 The USI Registry System was unavailable to allow for scheduled maintenance. We apologise for any inconvenience.
11:30 pm AEDT Friday 13 March 20267:00 am AEDT Monday 16 March 2026Relationship Authorisation Manager (RAM) was unavailable to allow the Australian Taxation Office (ATO) to undertake system maintenance.
8:00 pm AEDT Thursday 12 March 20266:00 am AEDT Friday 13 March 2026The USI Registry System was intermittently unavailable to allow for scheduled maintenance. 
5:00 pm AEDT Wednesday 11 March 20266:30 pm AEDT Wednesday 11 March 2026The USI Registry System was unavailable to allow for scheduled maintenance.
9:00 am AEDT Saturday 28 February 202611:30 am AEDT Saturday 28 February 2026The USI Registry System was unavailable to allow for scheduled maintenance.

Download the file below for a summary of the USI Registry System outages over the last 12 months.

System outages past 12 months - as at March 2026(PDF, 65.75 KB)
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