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Income Tax Expense
12 Months Ended
Dec. 31, 2022
Text block [abstract]  
Income Tax Expense
10. Income Tax Expense
Recognised within the Consolidated Income Statement
202220212020
Continuing operations
$m
$m
$m
(a) Current tax
Republic of Ireland
341523
Overseas731548520
Total current tax expense
765563543
(b) Deferred tax
Origination and reversal of temporary differences:
Retirement benefit obligations(4)2(9)
Share-based payment expense
1(6)(2)
Derivative financial instruments
(4)2-
Other items
27100(87)
Total deferred tax expense/(income)
2098(98)
Income tax reported in the Consolidated Income Statement
785661445
Recognised outside the Consolidated Income Statement
(a) Within the Consolidated Statement of Comprehensive Income:
Deferred tax - retirement benefit obligations
(63)(36)11
Deferred tax - cash flow hedges
(14)(8)-
(77)(44)11
(b) Within the Consolidated Statement of Changes in Equity:
Current tax
Current tax - share option exercises
7142
Deferred tax
Deferred tax - share-based payment expense(10)10(1)
Deferred tax - cash flow hedges
17--
14241
Income tax recognised outside the Consolidated Income Statement
(63)(20)12
202220212020
Reconciliation of applicable tax rate to effective tax rate
Continuing operations
Profit before tax ($m)
3,4693,1031,454
Tax charge expressed as a percentage of profit before tax (effective tax rate):
- current tax expense only22.1 %18.1 %37.3 %
- total income tax expense (current and deferred)22.6 %21.3 %30.6 %

The following table reconciles the applicable Republic of Ireland statutory tax rate to the effective tax rate (current and deferred) of the Group:
% of profit before tax
Irish corporation tax rate12.512.512.5
Higher tax rates on overseas earnings9.89.610.4
Other items
- arising from 2020 impairment--9.4
- other items (primarily comprising items not chargeable to tax/expenses not deductible for tax)0.3(0.8)(1.7)
Total effective tax rate22.621.330.6


Other disclosures
Effective tax rate
The 2022 effective tax rate is 22.6% (2021: 21.3%; 2020: 30.6%).
The tax charge associated with discontinued operations is recognised separately in “Profit after tax for the financial year from discontinued operations”. See note 3 for further details.
Changes in tax rates
The total tax charge in future periods will be affected by any changes to the tax rates in force in the countries in which the Group operates.
Proposed dividends
There are no income tax consequences for the Company in respect of dividends proposed prior to issuance of the Consolidated Financial Statements and for which a liability has not been recognised.