Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Subsidiaries (Details)

v3.22.2.2
Subsidiaries (Details)
12 Months Ended
Sep. 30, 2022
Arqit Limited  
Disclosure of subsidiaries [line items]  
Percentage of ownership interest in subsidiary 100.00%
Arqit Inc.  
Disclosure of subsidiaries [line items]  
Percentage of ownership interest in subsidiary 100.00%
Arqit LLC  
Disclosure of subsidiaries [line items]  
Percentage of ownership interest in subsidiary 100.00%
Arqit Italia S.R.L  
Disclosure of subsidiaries [line items]  
Percentage of ownership interest in subsidiary 100.00%
Arqit Quantum PTY Ltd  
Disclosure of subsidiaries [line items]  
Percentage of ownership interest in subsidiary 100.00%