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Income Taxes
6 Months Ended
Jun. 30, 2026
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
NuScale LLC was historically and remains a partnership for U.S. federal income tax purposes with each partner being separately taxed on its share of taxable income or loss. NuScale Corp is subject to U.S. federal income taxes, in addition to state and local income taxes, with respect to its distributive share of any net taxable income or loss and any related tax credits of NuScale LLC.

The effective tax rate was 0% for the three and six months ended June 30, 2026 and 2025. The effective income tax rate for the three and six months ended June 30, 2026 differed significantly from the statutory rates, primarily due to the losses and the recognition of a valuation allowance as a result of the Company’s new tax structure following the Transaction.

During the three and six months ended June 30, 2026, the Company incurred no income tax. During the three and six months ended June 30, 2025, the Company incurred no domestic income tax, but did incur $342 in foreign withholding tax expense in the country of Romania during the six months ended June 30, 2025.

The Company has assessed the realizability of the net deferred tax assets and in that analysis has considered the relevant positive and negative evidence available to determine whether it is more likely than not that some portion or all of the deferred tax assets will be realized. The Company has recorded a full valuation allowance against the deferred tax assets at NuScale Corp as of June 30, 2026, which will be maintained until there is sufficient evidence to support the reversal of all or some portion of these allowances.

The Company’s income tax filings will be subject to audit by various taxing jurisdictions. The Company will monitor the status of U.S. federal, state, local and foreign filings that may be subject to audit in future periods. No U.S. federal, state and local income tax returns are currently under examination by the respective taxing authorities.
NuScale Corp, NuScale LLC and various legacy NuScale Equityholders entered into a Tax Receivable Agreement (“TRA”) on May 2, 2022. Given NuScale’s current tax situation the related liability is not probable and therefore not recorded. No TRA payments are expected in the near future.