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Income Taxes
 3 Months Ended
Dec. 27, 2024
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
The Company’s effective tax rates from continuing operations for the three months ended December 27, 2024 and December 29, 2023 were 107.5% and (30.6)%, 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 three-month period ended December 27, 2024 was due to $37.0 million in unfavorable tax impacts associated with the non-deductibility of losses from our investment in Amentum stock, as well as U.S. state income tax expense of $5.4 million and U.S. tax on foreign earnings of $4.9 million. 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 for the three-month period ended December 29, 2023 was 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.
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 are 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 Netherlands, 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.