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TAXES - Deferred Income Taxes (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Deferred tax assets: |  |
Tax credit carryforward | $ 288.9 | $ 311.0
Income taxes refundable to customers, net | 289.4 | 311.0
Deferred employee benefit costs | 101.5 | 86.2
Net operating loss carryforward | 22.5 | 31.7
Deferred state income taxes | 141.0 | 145.6
Accrued liabilities | 185.9 | 169.7
Other regulatory liabilities | 132.0 | 116.4
Other | 121.7 | 131.7
Total deferred tax assets before valuation allowance | 1,282.9 | 1,303.3
Valuation allowances | (14.8) | (12.8)
Total deferred tax assets, net | 1,268.1 | 1,290.5
Deferred tax liabilities: |  |
Plant-related | (2,818.4) | (2,770.9)
Deferred employee benefit costs | (11.1) | (8.8)
ARO regulatory assets | (37.4) | (40.6)
Acquisition premium | (159.1) | (144.3)
Other regulatory assets | (231.3) | (195.6)
Other | (108.7) | (126.9)
Total deferred tax liabilities | (3,366.0) | (3,287.1)
Net deferred income tax liabilities | (2,097.9) | (1,996.6)
Evergy Kansas Central |  |
Deferred tax assets: |  |
Tax credit carryforward | 242.7 | 226.9
Income taxes refundable to customers, net | 149.1 | 156.5
Deferred employee benefit costs | 52.1 | 45.1
Net operating loss carryforward | 0.0 | 0.0
Deferred state income taxes | 99.2 | 99.8
Accrued liabilities | 85.9 | 77.5
Other regulatory liabilities | 86.4 | 43.7
Other | 64.2 | 69.0
Total deferred tax assets before valuation allowance | 779.6 | 718.5
Valuation allowances | (2.7) | 0.0
Total deferred tax assets, net | 776.9 | 718.5
Deferred tax liabilities: |  |
Plant-related | (1,397.1) | (1,333.2)
Deferred employee benefit costs | (10.6) | (8.3)
ARO regulatory assets | (37.4) | (40.6)
Acquisition premium | (67.2) | (59.4)
Other regulatory assets | (43.6) | (41.7)
Other | (65.2) | (79.8)
Total deferred tax liabilities | (1,621.1) | (1,563.0)
Net deferred income tax liabilities | (844.2) | (844.5)
Evergy Metro |  |
Deferred tax assets: |  |
Tax credit carryforward | 43.6 | 77.6
Income taxes refundable to customers, net | 103.6 | 113.6
Deferred employee benefit costs | 58.2 | 54.7
Net operating loss carryforward | 0.0 | 0.0
Deferred state income taxes | 36.2 | 38.6
Accrued liabilities | 66.8 | 61.6
Other regulatory liabilities | 17.1 | 30.6
Other | 25.1 | 28.2
Total deferred tax assets before valuation allowance | 350.6 | 404.9
Valuation allowances | 0.0 | 0.0
Total deferred tax assets, net | 350.6 | 404.9
Deferred tax liabilities: |  |
Plant-related | (1,030.2) | (1,016.4)
Deferred employee benefit costs | 0.0 | 0.0
ARO regulatory assets | 0.0 | 0.0
Acquisition premium | (60.3) | (54.3)
Other regulatory assets | (34.1) | (28.6)
Other | (23.2) | (26.5)
Total deferred tax liabilities | (1,147.8) | (1,125.8)
Net deferred income tax liabilities | $ (797.2) | $ (720.9)

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