Income Taxes |
6 Months Ended |
|---|---|
Jun. 30, 2026 | |
| Income Tax Disclosure [Abstract] | |
| Income Tax Disclosure [Text Block] | Income Taxes We compute income tax expense for each quarter based on the estimated annual effective tax rate for the year, adjusted for certain discrete items. Our effective tax rate typically differs from the federal statutory tax rate due to the regulatory impact of flowing through the federal and state tax benefit of repairs deductions, state tax benefit of accelerated tax depreciation deductions (including bonus depreciation when applicable) and production tax credits. The regulatory accounting treatment of these deductions requires immediate income recognition for temporary tax differences of this type, which is referred to as the flow-through method. When the flow-through method of accounting for temporary differences is reflected in regulated revenues, we record deferred income taxes and establish related regulatory assets and liabilities. During the three months ended June 30, 2026 income tax expense was $3.5 million compared to $3.4 million for the same period in 2025. For the three months ended June 30, 2026, the effective tax rate was 12.2% compared to 13.7% for the same period in 2025. The lower effective tax rate was primarily due to higher flow through repairs deductions partly offset by higher plant depreciation flow through items. During the six months ended June 30, 2026 income tax expense was $17.3 million compared to $18.6 million for the same period in 2025. For the six months ended June 30, 2026, the effective tax rate was 16.3% compared to 15.9% for the same period in 2025. The higher effective tax rate was primarily due to higher plant depreciation flow through items and lower production tax credits, partly offset by higher flow through repairs deductions.
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