The applicable income tax rate.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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-IssueDate 2020-01-01
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-Subparagraph c
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The aggregate amount of temporary differences associated with investments in subsidiaries, branches and associates and interests in joint arrangements, for which deferred tax liabilities have not been recognised as a result of satisfying both of the following conditions: (a) the parent, investor, joint venturer or joint operator is able to control the timing of the reversal of the temporary difference; and (b) it is probable that the temporary difference will not reverse in the foreseeable future. [Refer: Associates [member]; Subsidiaries [member]; Temporary differences [member]; Investments in subsidiaries]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 12
-IssueDate 2020-01-01
-Paragraph 81
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- Definition

The amount of unused tax losses for which no deferred tax asset is recognised in the statement of financial position. [Refer: Unused tax losses [member]]

+ References

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-IssueDate 2020-01-01
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Income tax - Unrecognised deferred tax balances (Details) - AUD ($) $ in Millions	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Income tax
Australian company tax rate (as a percent)	30.00%	30.00%	30.00%
Unrecognised deferred tax balances
Unrecognised deferred tax asset: Tax losses on revenue account	$ 470	$ 335
Unrecognised deferred tax liability: Gross retained earnings of subsidiaries which the Parent Entity does not intend to distribute in the foreseeable future	$ 55	55
Minimum
Income tax
Australian company tax rate (as a percent)	16.50%
Maximum
Income tax
Australian company tax rate (as a percent)	30.00%
Parent Entity
Unrecognised deferred tax balances
Unrecognised deferred tax asset: Tax losses on revenue account	$ 454	$ 264