Taxes - MGE Energy and MGE. Effective Tax Rate. The consolidated income tax provision differs from the amount computed by applying the statutory federal income tax rate to income before income taxes, as follows: | | MGE Energy | | MGE | | | Three Months Ended September 30, | 2019 | | 2018 | | 2019 | | 2018 | | | Statutory federal income tax rate | 21.0 | % | | 21.0 | % | | 21.0 | % | | 21.0 | % | | | State income taxes, net of federal benefit | 6.3 | | | 6.3 | | | 6.2 | | | 6.2 | | | | Amortized investment tax credits | (0.1) | | | (0.1) | | | (0.1) | | | (0.1) | | | | Credit for electricity from wind energy(a) | (4.8) | | | (0.3) | | | (5.2) | | | (0.2) | | | | AFUDC equity, net | (0.4) | | | (0.6) | | | (0.4) | | | (0.6) | | | | Amortization of utility excess deferred tax - tax reform(b) | (1.9) | | | (1.8) | | | (2.1) | | | (1.8) | | | | Other, net, individually insignificant | (0.5) | | | - | | | (0.5) | | | 0.1 | | | | Effective income tax rate | 19.6 | % | | 24.5 | % | | 18.9 | % | | 24.6 | % | | | | | | | | | | | | | | | | | | MGE Energy | | MGE | | | Nine Months Ended September 30, | 2019 | | 2018 | | 2019 | | 2018 | | | Statutory federal income tax rate | 21.0 | % | | 21.0 | % | | 21.0 | % | | 21.0 | % | | | State income taxes, net of federal benefit | 6.3 | | | 6.3 | | | 6.2 | | | 6.2 | | | | Amortized investment tax credits | (0.1) | | | (0.1) | | | (0.1) | | | (0.1) | | | | Credit for electricity from wind energy(a) | (5.6) | | | (0.3) | | | (6.1) | | | (0.3) | | | | AFUDC equity, net | (0.3) | | | (0.8) | | | (0.3) | | | (0.8) | | | | Amortization of utility excess deferred tax - tax reform(b) | (2.2) | | | (1.8) | | | (2.4) | | | (2.0) | | | | Other, net, individually insignificant | 0.1 | | | - | | | 0.1 | | | 0.1 | | | | Effective income tax rate | 19.2 | % | | 24.3 | % | | 18.4 | % | | 24.1 | % | |
(a)Saratoga Wind Farm became operational in February 2019. (b)Included are impacts of the Tax Cuts and Jobs Act for the regulated utility for excess deferred taxes recognized using a normalization method of accounting. For the three and nine months ended September 30, 2019, MGE recognized $0.6 million and $1.7 million, respectively, compared to $0.5 million and $1.4 million for the comparable periods in 2018. The amount and timing of the cash impacts will depend on the period over which certain income tax benefits are provided to customers, as determined by the PSCW.
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