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Income Tax | 3 Months Ended
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Mar. 31, 2024
Income Tax Disclosure [Abstract] |
Income Tax | Income Tax Con Edison’s income tax expense was $184 million for the three months ended March 31, 2024 and $243 million for the three months ended March 31, 2023. The decrease in income tax expense is primarily due to lower income before income tax expense, primarily due to the prior year gain on the sale of the Clean Energy Businesses and higher amortization of excess deferred federal income taxes, offset in part by the absence of a tax benefit from the recognition of deferred unamortized investment tax credits in 2023, changes in state apportionments in 2023 and lower flow through tax benefits in 2024 for plant related items. CECONY’s income tax expense was $181 million for the three months ended March 31, 2024 and $154 million for the three months ended March 31, 2023. The increase in income tax expense is primarily due to higher income before income tax expense, higher state income taxes and lower flow through tax benefits in 2024 for plant related items, offset in part by higher amortization of excess deferred federal income taxes. Reconciliation of the difference between income tax expense and the amount computed by applying the prevailing statutory income tax rate to income before income taxes for the three months ended March 31, 2024 and 2023 is as follows:
| For the Three Months Ended March 31, |  |
| Con Edison | CECONY |  |
(% of Pre-tax income) | 2024 | 2023 | 2024 | 2023 |  |
STATUTORY TAX RATE |  |  |  |  |  |
Federal | 21 | % | 21 | % | 21 | % | 21 | % |  |
Changes in computed taxes resulting from: |  |  |  |  |  |
State income tax, net of federal income taxes | 5 |  | 5 |  | 5 |  | 5 |  |  |
Amortization of excess deferred federal income taxes | (6) |  | (3) |  | (5) |  | (6) |  |  |
Cost of removal | 1 |  | — |  | 1 |  | 1 |  |  |
Allowance for uncollectible accounts, net of COVID-19 assistance | (1) |  | — |  | (1) |  | (1) |  |  |
Impacts from the sale of the Clean Energy Businesses: |  |  |  |  |  |
Deferred unamortized ITC recognized on sale of subsidiary | — |  | (7) |  | — |  | — |  |  |
Changes in state apportionments, net of federal income taxes | — |  | (3) |  | — |  | — |  |  |
Valuation allowance on state NOLs, net of federal income tax | — |  | 1 |  | — |  | — |  |  |
Effective tax rate | 20 | % | 14 | % | 21 | % | 20 | % |  |
Inflation Reduction Act On August 16, 2022, the Inflation Reduction Act (IRA) was signed into law. Among other provisions, the IRA implemented a 15% corporate alternative minimum tax (CAMT) based on GAAP net income, with certain adjustments as defined by the IRA, and clean energy-related provisions. The IRA's clean energy provisions included, among other provisions, the extension and modification of existing investment and production tax credits for projects placed in service through 2024 and introduced new technology-neutral clean energy-related credits beginning in 2025. Under the IRA, a corporation is subject to the CAMT if its average annual adjusted financial statement income for the three taxable year period ending prior to the taxable year exceeds $1,000 million, and applies to tax years beginning after December 31, 2022. The Companies were not subject to the CAMT in 2023, but are subject to the CAMT beginning in 2024. There were no material impacts from the provisions of the CAMT on the Companies’ financial position, results of operations or liquidity for the three months ended March 31, 2024. The Companies will continue to assess the IRA as new information and anticipated guidance from the U.S. Department of the Treasury becomes available. Uncertain Tax Positions At March 31, 2024, the estimated liability for uncertain tax positions for Con Edison was $12 million ($7 million for CECONY). For the three months ended March 31, 2024, Con Edison recognized $1 million ($1 million for CECONY) of income tax expense related to current year positions. Con Edison and CECONY reasonably expect to resolve within the next twelve months approximately $3 million of various federal uncertainties due to the expected completion of ongoing tax examinations, of which the entire amount, if recognized, would reduce their effective tax rate. The total amount of unrecognized tax benefits, if recognized, that would reduce Con Edison’s effective tax rate is $12 million ($11 million, net of federal income taxes) with $7 million attributable to CECONY. The Companies recognize interest on liabilities for uncertain tax positions in interest expense and would recognize penalties, if any, in operating expenses in the Companies’ consolidated income statements. For the three months ended March 31, 2024 and 2023, the Companies recognized an immaterial amount of interest expense and no penalties for uncertain tax positions in their consolidated income statements. At March 31, 2024 and December 31, 2023, the Companies recognized an immaterial amount of accrued interest on their consolidated balance sheets. In February 2024, New York State completed its examination of the Companies' New York State income and franchise tax returns for tax years 2015 through 2021 with no changes. The Companies' return for tax year 2022 remains open under the statute of limitations.

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