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Income Taxes
 12 Months Ended
Jun. 30, 2026
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
    Amcor plc is a tax resident of the United Kingdom of Great Britain and Northern Ireland ("UK").

    The components of income before income taxes and equity in income/(loss) of affiliated companies were as follows:
Years ended June 30,
($ in millions)202620252024
Domestic (UK)$37 $(210)$(108)
Foreign1,245 860 1,015 
Total income before income taxes and equity in income/(loss) of affiliated companies$1,282 $650 $907 

    Income tax expense consisted of the following:
Years ended June 30,
($ in millions)202620252024
Current tax:
Domestic (UK)$20 $1 $2 
Foreign257 259 198 
Total current tax277 260 200 
Deferred tax:
Domestic (UK)(6)(17)18 
Foreign(90)(108)(55)
Total deferred tax(96)(125)(37)
Income tax expense$181 $135 $163 

    The following is a reconciliation of income tax computed at the United Kingdom statutory tax rate of 25.0%, for fiscal year 2026:
($ in millions)Year Ended June 30, 2026
Tax expense at UK statutory tax rate$320 25.0 %
Foreign tax effects:
United States of America:
Effect of cross-border tax laws(34)(2.7)%
Tax credits(23)(1.8)%
Unified loss rules(45)(3.5)%
Other, net(11)(0.8)%
Australia:
Changes in valuation allowance(31)(2.4)%
Other, net7 0.6 %
Other foreign jurisdictions, net23 1.8 %
Other adjustments, net7 0.4 %
Changes in unrecognized tax benefits, net(32)(2.5)%
Income tax expense$181 14.1 %

    The following is a reconciliation of income tax computed at the United Kingdom statutory tax rate of 25.0% for fiscal years 2025, and 2024 to income tax expense.
Years ended June 30,
($ in millions)20252024
Income tax expense at statutory rate$163 $226 
Foreign tax rate differential(3)(3)
Non-deductible expenses, non-taxable items, net33 (6)
Change in valuation allowance(18)3 
Uncertain tax positions, net(18)(51)
Other (1)(22)(6)
Income tax expense$135 $163 
(1)In fiscal year 2025, Other is comprised of adjustments to prior year which resulted in a $15 million benefit, movement in deferred tax positions with a $9 million benefit, effect of foreign currency exchange, changes in tax rates and other individually immaterial items. In fiscal year 2024, Other is comprised of adjustments to prior year provisions, movement in deferred tax positions, including a $15 million benefit from the Swiss Tax Reform, effects of foreign currency exchange rates, including a $14 million benefit from inflation adjustment in Argentina, partially offset by changes in tax rates, and other individually immaterial items.

    Amcor operates in over forty different jurisdictions with a wide range of statutory tax rates. The tax expense from operating in non-UK jurisdictions in excess of the UK statutory tax rate is included in the line "Foreign tax rate differential" in the above tax rate reconciliation table. For fiscal year 2026, the Company's effective tax rate was 14.1% as compared to the effective tax rates of 20.8% and 18.0% for fiscal years 2025 and 2024, respectively. The lower effective tax rate for fiscal year 2026 versus fiscal year 2025 is largely attributable to favorable return-to-provision adjustments recorded as current year discrete items identified upon completion of prior year income tax returns, movements in deferred tax positions including releases of valuation allowances, and changes in unrecognized tax benefits which are partially offset by non-deductible expenses related to the Merger. The higher effective tax rate for fiscal year 2025 versus fiscal year 2024 is largely attributable to non-deductible expenses in 2025 related to the Merger.

    Significant components of deferred tax assets and liabilities are as follows:
June 30,
($ in millions)20262025
Deferred tax assets:
Inventories$24 $17 
Accrued employee benefits92 152 
Derivatives and financial instruments3 20 
Provisions22 32 
Net operating loss carryforwards696 708 
Tax credit carryforwards59 54 
Accruals and other107 64 
Total deferred tax assets1,003 1,047 
Valuation allowance(610)(664)
Net deferred tax assets393 383 
Deferred tax liabilities:
Property, plant, and equipment(636)(821)
Other intangible assets(1,528)(1,655)
Undistributed foreign earnings(110)(171)
Total deferred tax liabilities(2,274)(2,647)
Net deferred tax liability(1,881)(2,264)
Balance sheet location:
Deferred tax assets199 218 
Deferred tax liabilities(2,080)(2,482)
Net deferred tax liability$(1,881)$(2,264)
    The Company maintains a valuation allowance on net operating losses and other deferred tax assets in jurisdictions for which it does not believe it is more likely than not to realize those deferred tax assets based upon all available positive and negative evidence, including historical operating performance, carry-back periods, reversal of taxable temporary differences, tax planning strategies, and earnings expectations. The Company's valuation allowance decreased by $54 million, increased by $261 million, and increased by $3 million for fiscal years 2026, 2025, and 2024, respectively.

    As of June 30, 2026, and 2025, the Company had total net operating loss carry forwards, including capital losses, in the amount of $2.2 billion and $2.3 billion, respectively, and tax credits of $59 million and $54 million, respectively. The vast majority of the net operating loss carry forwards and tax credits do not expire.

    The Company considers the following factors, among others, in evaluating its plans for indefinite reinvestment of its subsidiaries' earnings: (i) the forecasts, budgets, and financial requirements of the Company and its subsidiaries, both for the long-term and for the short-term; and (ii) the tax consequences of any decision to repatriate or reinvest earnings of any subsidiary. Upon distribution of such earnings in the form of dividends or otherwise, the Company may be subject to incremental foreign tax. It is not practicable to estimate the amount of foreign tax that might be payable.

    As of June 30, 2026, a cumulative deferred tax liability of $110 million has been recorded attributable to undistributed earnings that the Company has deemed are not indefinitely reinvested. The remaining undistributed earnings of the Company's subsidiaries are not deemed to be indefinitely reinvested and can be repatriated at no tax cost. Accordingly, there is no provision for income or withholding taxes on these earnings.

    The Company accounts for its unrecognized tax benefits in accordance with ASC 740, "Income Taxes." At June 30, 2026, and 2025, unrecognized tax benefits totaled $212 million and $224 million, respectively, all of which would favorably impact the effective tax rate if recognized.

    The Company recognizes interest and penalties accrued related to unrecognized tax benefits in income tax expense. As of June 30, 2026, 2025, and 2024, the Company's accrual for interest and penalties for these uncertain tax positions was $45 million, $37 million, and $17 million, respectively.

    A reconciliation of the beginning and ending amount of unrecognized tax benefits for the fiscal years presented is as follows:
June 30,
($ in millions)202620252024
Balance at the beginning of the year$224 $104 $155 
Additions related to acquisitions— 134 — 
Additions based on tax positions related to the current year18 7 10 
Additions for tax positions of prior years48 3 7 
Reductions for tax positions from prior years(75)(21)(39)
Reductions for settlements— — (2)
Reductions due to lapse of statute of limitations(3)(3)(27)
Balance at the end of the year$212 $224 $104 

    The Company conducts business in a number of tax jurisdictions and, as such, is required to file income tax returns in multiple jurisdictions globally. The fiscal years 2022 through 2025 remain open for examination by the United States Internal Revenue Service ("IRS"), the fiscal years 2024 and 2025 remain open for examination by His Majesty’s Revenue & Customs ("HMRC"), and the fiscal years 2015 through 2025 are currently subject to audit or remain open for examination in various tax jurisdictions.

    The Company believes that its income tax reserves are adequately maintained taking into consideration both the technical merits of its tax return positions and ongoing developments in its income tax audits. However, the final determination of the Company's tax return positions, if audited, is uncertain and therefore there is a possibility that final resolution of these matters could have a material impact on the Company's results of operations or cash flows.

The total amount of income taxes paid, net of refunds received, in 2026 is as follows:
($ in millions)Year Ended June 30, 2026
United States of America$187 
Germany53 
France28 
Switzerland25 
Canada23 
Rest of the world135 
Total income taxes paid (net of refunds received)$451