v3.26.3
INCOME TAXES: Level 3 (Tables)
9 Months Ended
Sep. 30, 2026
Income Tax Disclosure [Abstract]  
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
The following table provides a summary of income tax expense (benefit) (in thousands of dollars): 
IDACORPIdaho Power
Nine months ended
September 30,
Nine months ended
September 30,
2026202520262025
Income tax at statutory rates (federal and state)$87,206 $67,179 $86,349 $65,335 
Excess deferred income tax reversal(4,872)(7,293)(4,872)(7,293)
Income tax return adjustments(13,503)(8,046)(13,728)(8,581)
Other(1)
(44,933)(24,300)(42,572)(22,545)
Income tax expense before ADITC$23,898 $27,540 $25,177 $26,916 
Additional ADITC amortization(6,250)(39,000)(6,250)(39,000)
Income tax expense (benefit)$17,648 $(11,460)$18,927 $(12,084)
Effective tax rate5.1 %(4.3)%5.5 %(4.6)%
(1) "Other" primarily consists of the net tax effect of Idaho Power's regulatory flow-through tax adjustments.
Supplemental Disclosure of Cash Flow Information

Supplemental cash flow information related to income taxes, including cash (refunded) paid for income taxes and cash received from IDACORP related to income taxes, is presented below (in thousands of dollars):
Nine months ended
September 30,
20262025
IDACORP
Total cash (refunded) paid for income taxes$(3,374)$5,790 
Idaho Power
Total cash received from IDACORP related to income taxes$(2,443)$(21,600)