
The Company’s effective tax rates from continuing operations for the three months ended June 27, 2025 and June 28, 2024 were 21.9% and 33.2%, respectively. Significant items contributing to differences between the statutory U.S. federal corporate tax rate of 21.0% and the Company's effective tax rate for the three-month period ended June 27, 2025 were U.S. state income tax expense and U.S. tax on foreign earnings. These expense items were offset by a return-to-provision income tax benefit, mainly attributable to additional research and development credits claimed on the U.S. federal tax return. The U.S state income tax and U.S. tax on foreign earnings are expected to have a continuing impact on the Company's effective tax rate for the remainder of the fiscal year.

The most significant items contributing to the difference between the statutory U.S. federal corporate tax rate of 21.0% and the Company's effective tax rate of 33.2% for the three-month period ended June 28, 2024 were related to U.S. state income tax expense, U.S. tax on foreign earnings and income tax expense related to foreign exchange gains associated with change in assertion on intercompany loans that were previously indefinitely reinvested. These expense items were partly offset by a return-to-provision income tax benefit, mainly attributable to additional research and development credits claimed on the U.S. federal tax return.

The Company’s effective tax rates from continuing operations for the nine months ended June 27, 2025 and June 28, 2024 were 45.6% and 14.9%, respectively. The most significant items contributing to the difference between the statutory U.S. federal corporate tax rate of 21.0% and the Company's effective tax rate for the nine-month period ended June 27, 2025 were related to $63.1 million in unfavorable tax impacts associated with the non-deductibility of losses from the Company's investment in Amentum stock, as well as U.S. state income tax expense and U.S. tax on foreign earnings. These expense items were partly offset by a return-to-provision income tax benefit mainly attributable to additional research and development credits claimed on the U.S. federal tax return. The U.S state income tax and U.S. tax on foreign earnings are expected to have a continuing impact on the Company's effective tax rate for the remainder of the fiscal year.

The most significant item contributing to the difference between the statutory U.S. federal corporate tax rate of 21.0% and the Company's effective tax rate of 14.9% for the nine-month period ended June 28, 2024 were related to the election to treat an Australian subsidiary as a corporation versus a partnership for U.S. tax purposes, which resulted in the derecognition of a deferred tax liability and yielded a discrete income tax benefit of $61.6 million as the Company asserted that a component of the investment will be indefinitely reinvested. This benefit was partly offset by U.S. state income tax expense, U.S. tax on foreign earnings and income tax related to foreign exchange gains associated with change in assertion on intercompany loans that were previously indefinitely reinvested.

On July 4, 2025, H.R. 1, also referred to as the “One Big Beautiful Bill Act” (“OBBBA”), was enacted in the U.S. The OBBBA includes significant provisions, such as the permanent extension of certain expiring provisions of the Tax Cuts and Jobs Act (“TCJA”), modifications to the international tax framework and pre-TCJA treatment for certain business provisions. ASC 740, Income Taxes, requires the effects of changes in tax rates and laws on deferred tax balances to be recognized in the period in which the legislation is enacted. The OBBBA has multiple effective dates, with certain provisions effective in 2025 and others implemented through 2027. The Company is currently assessing its impact on the consolidated financial statements which will be recorded during the fourth quarter of fiscal 2025.

In December 2021, the Organization for Economic Cooperation and Development ("OECD") released the Pillar Two Model Rules (also referred to as the global minimum tax or Global Anti-Base Erosion "GloBE" rules), which were designed to ensure large multinational enterprises pay a minimum 15 percent level of tax on the income arising in each jurisdiction in which they operate. Several jurisdictions in which we operate have enacted these rules, which were effective for the first quarter of the fiscal year ending September 26, 2025. The Company is continually monitoring developments and evaluating the potential impacts. At this time, implementation of these rules has not generated a material impact on consolidated income taxes.

The amount of income taxes the Company pays is subject to ongoing audits by tax jurisdictions around the world. In the normal course of business, the Company is subject to examination by tax authorities throughout the world, including such major jurisdictions as Australia, Canada, India, the United Kingdom and the United States. Our estimate of the potential outcome of any uncertain tax issue is subject to our assessment of the relevant risks, facts, and circumstances existing at the time. The Company believes that it has adequately provided for reasonably foreseeable outcomes related to these matters. However, future results may include favorable or unfavorable adjustments to our estimated tax liabilities in the period the assessments are made or resolved, which may impact our effective tax rate.