Income Taxes

3 Months Ended

Mar. 30, 2024

Income Tax Disclosure [Abstract]

Income Taxes

11. Income Taxes

The effective tax rate for the first quarter of 2024 was 21.7% compared to 22.9% for the first quarter of 2023. The decrease in the effective tax rate for the first quarter of 2024 as compared to the first quarter of 2023 was primarily due to increased federal tax credits and the change in relative proportions of net earnings attributable to noncontrolling interests to total pre-tax earnings between the periods.

The Internal Revenue Service (the “IRS”) is currently examining Nucor’s 2015, 2019, and 2020 federal income tax returns. Nucor has concluded U.S. federal income tax matters for the tax years through 2014, and for the tax years 2016 and 2018. The tax years 2017, 2021, and 2022 remain open to examination by the IRS. The 2015 through 2021 Canadian income tax returns for Nucor Rebar Fabrication Group Inc. (formerly known as Harris Steel Group Inc.) and certain related affiliates are currently under examination by the Canada Revenue Agency. The tax years 2016 through 2022 remain open to examination by other major taxing jurisdictions to which Nucor is subject (primarily Canada, Trinidad & Tobago, and other state and local jurisdictions).

Non-current deferred tax assets included in other assets in the condensed consolidated balance sheets were $42.0 million at March 30, 2024 ($40.7 million at December 31, 2023). Non-current deferred tax liabilities included in deferred credits and other liabilities in the condensed consolidated balance sheets were $1.29 billion at March 30, 2024 ($1.33 billion at December 31, 2023).