Quarterly report pursuant to Section 13 or 15(d)

Income Taxes

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Income Taxes
3 Months Ended
Dec. 26, 2021
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
We estimate our annual effective income tax rate to be 14% for fiscal 2022, which is lower than the U.S. federal statutory rate primarily due to a significant portion of our income qualifying for preferential treatment as foreign-derived intangible income (FDII) at a 13% effective tax rate, excess tax benefits associated with share-based awards and benefits from our federal research and development tax credit. Our effective tax rate of 12% for the first quarter of fiscal 2022 was lower than our estimated annual effective tax rate of 14% primarily due to $103 million of discrete net tax benefits recorded in the first quarter of fiscal 2022, which principally related to excess tax benefits associated with share-based awards that vested in the first fiscal quarter. Our effective tax rate of 6% for the first quarter of fiscal 2021 included $212 million of discrete net tax benefits recorded in the first quarter of fiscal 2021, which principally related to excess tax benefits associated with share-based awards that vested in that quarter, foreign currency gains on a noncurrent receivable related to our refund claim of Korean withholding tax and valuation allowance release on foreign tax credit carryforwards.
Unrecognized tax benefits were $2.1 billion at both December 26, 2021 and September 26, 2021 and primarily related to our refund claim of Korean withholding tax. If successful, the refund will result in a corresponding reduction in U.S. foreign tax credits. We expect that the total amount of unrecognized tax benefits at December 26, 2021 will increase in the next 12 months as licensees in Korea continue to withhold taxes on future payments due under their licensing agreements at a rate higher than we believe is owed; such increase is not expected to have a significant impact on our income tax provision.