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v3.20.4

Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Deferred tax assets: |  |
Net operating loss | $ 41,419 | $ 59,488
Regulatory liabilities related to income taxes | 148,961 | 145,087
Federal tax credit carryforwards | 121,354 | 101,231
Regulatory disallowances | 38,531 | 34,639
Other | 42,885 | 54,199
Total deferred tax assets | 393,150 | 394,644
Deferred tax liabilities: |  |
Depreciation and plant related | (738,342) | (787,928)
Investment tax credit | (98,669) | (81,186)
Regulatory assets related to income taxes | (61,330) | (58,495)
CTC | 0 | (1,466)
Pension | (37,099) | (35,029)
Regulatory asset for shutdown of SJGS Units 2 and 3 | (27,237) | (28,831)
Other | (124,985) | (27,767)
Total deferred tax liabilities | (1,087,662) | (1,020,702)
Net accumulated deferred income tax liabilities | (694,512) | (626,058)
Public Service Company of New Mexico |  |
Deferred tax assets: |  |
Net operating loss | 0 | 25,889
Regulatory liabilities related to income taxes | 121,569 | 114,849
Federal tax credit carryforwards | 84,719 | 82,983
Shutdown of SJGS Units 2 and 3 | 0 | 0
Regulatory disallowances | 38,531 | 34,639
Other | 46,444 | 38,735
Total deferred tax assets | 291,263 | 297,095
Deferred tax liabilities: |  |
Depreciation and plant related | (576,079) | (630,293)
Investment tax credit | (74,424) | (74,667)
Regulatory assets related to income taxes | (51,493) | (49,479)
Pension | (32,413) | (30,609)
Regulatory asset for shutdown of SJGS Units 2 and 3 | (27,237) | (28,831)
Other | (108,767) | (5,206)
Total deferred tax liabilities | (870,413) | (819,085)
Net accumulated deferred income tax liabilities | (579,150) | (521,990)
Texas-New Mexico Power Company |  |
Deferred tax assets: |  |
Regulatory liabilities related to income taxes | 27,392 | 30,238
Other | 4,548 | 3,788
Total deferred tax assets | 31,940 | 34,026
Deferred tax liabilities: |  |
Depreciation and plant related | (148,279) | (142,791)
Regulatory assets related to income taxes | (9,836) | (9,016)
Loss on reacquired debt | (6,072) | (6,345)
CTC | 0 | (1,466)
Pension | (4,685) | (4,420)
AMS | (6,915) | (8,473)
Other | (1,522) | (1,666)
Total deferred tax liabilities | (177,309) | (174,177)
Net accumulated deferred income tax liabilities | $ (145,369) | $ (140,151)

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