XML 31 R17.htm IDEA: XBRL DOCUMENT v3.21.2
Income Taxes
6 Months Ended
Jul. 03, 2021
Income Tax Disclosure [Abstract]  
Income Taxes

11. Income Taxes

The effective tax rate for the second quarter of 2021 was 22.4% compared to 26.5% for the second quarter of 2020. The effective tax rate for the second quarter of 2020 was elevated, relative to the second quarter of 2021, primarily due to a $5.3 million unfavorable non-cash, out-of-period adjustment to deferred tax balances. The out-of-period adjustment was not material to any previously reported period.

Nucor has concluded U.S. federal income tax matters for tax years through 2014 and for tax year 2016. The tax years 2015 and 2017 through 2019 remain open to examination by the Internal Revenue Service. The 2015 Canadian income tax returns for Harris Steel Group Inc. and certain related affiliates are currently under examination by the Canada Revenue Agency. The tax years 2014 through 2020 remain open to examination by other major taxing jurisdictions to which Nucor is subject (primarily Canada and other state and local jurisdictions).

Non-current deferred tax liabilities included in deferred credits and other liabilities in the condensed consolidated balance sheets were $701.9 million at July 3, 2021 ($596.4 million at December 31, 2020).