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Income Taxes
 9 Months Ended
Dec. 31, 2024
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
The Company’s tax provision for interim periods is determined using an estimate of its annual effective tax rate, adjusted for discrete items, if any. The Company’s effective tax rates for the three and nine months ended December 31, 2024 were 16.3% and 21.7%, respectively, and for the three and nine months ended December 31, 2023 were 23.9% and 22.1%, respectively.
In the three months ended December 31, 2024, the Company entered into a Tax Credit Purchase Agreement and purchased $13.8 million of transferable tax credits. The Company is committed to buying the remaining $15.7 million of transferable tax credits as the projects are placed in service, with the final project expected to be placed in service in the first quarter of fiscal 2026.
The Company's effective tax rate differs from the U.S. federal statutory rate, primarily due to state income taxes, stock-based compensation related tax benefits, which are subject to limitations for certain executive officers under IRC section 162(m), and federal and state research and development tax credits. The Company’s effective tax rate is based on forecasted annual income before income taxes which may fluctuate through the rest of the year.
The Company is only subject to income taxes in the United States. Significant judgment is required in evaluating the Company’s uncertain tax positions and determining the provision for income taxes. As of December 31, 2024 and March 31, 2024, the Company had unrecognized tax benefits (“UTBs”) of $10.9 million and $9.3 million, respectively, which are primarily included in other liabilities, non-current in our consolidated balance sheets. If realized, $10.7 million would impact the effective tax rate while the remainder would reduce deferred tax assets subject to a full valuation allowance. The Company does not expect any material changes to its UTBs within the next 12 months.