Quarterly report pursuant to Section 13 or 15(d)

Income Taxes

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Income Taxes
9 Months Ended
Dec. 31, 2020
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
Our effective income tax, after discrete tax events, was a 28.2% benefit against our loss before provision for taxes and 26.4% of tax expense for the three months ended December 31, 2020 and 2019, respectively. During the nine months ended December 31, 2020, the Company recorded discrete tax benefits of $1,854 related to updated Internal Revenue Service rules regarding the United States Global intangible low-taxed income or ("GILTI tax") and related tax planning elections associated with the GILTI tax rule changes. Under the new rules, Thermon was able to reduce previously incurred GILTI tax under the high tax exception rules. Included with this benefit are certain tax elections that resulted in the reduction of previous tax expense. Separately, the loss on the capital stock sale of the South Africa Business, referred to in Note 4, "Restructuring and other charges/(income)", was not deductible for income tax. This resulted in approximately $526 of discrete tax expense during the three and nine months ended December 31, 2020.
During the nine months ended December 31, 2019, the Company recorded the impact of a prospective income tax rate reduction in the tax jurisdictions of Alberta, Canada and the Netherlands. The scheduled rate reductions of 4% and 3%, respectively, resulted in a net reduction of deferred tax liabilities of 1,231 reported as a benefit to tax expense. Excluding the impact of the change in GILTI tax rules and other discrete items, the Company estimates that the effective tax rate will be 26.9% for fiscal year 2021. The estimated effective income tax rate represents the weighted average of the estimated tax expense over our global income before tax.
    As of December 31, 2020, we have established a long-term liability for uncertain tax positions in the amount of $770. As of December 31, 2020, the tax years for the fiscal years ended March 31, 2015 through March 31, 2020 remain open to examination by the major taxing jurisdictions to which we are subject.