EX-12.2 4 lnt1231201710-kex122.htm RATIO OF EARNINGS TO FIXED CHARGES FOR IPL
Exhibit 12.2
INTERSTATE POWER AND LIGHT COMPANY
RATIO OF EARNINGS TO FIXED CHARGES AND RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED DIVIDEND REQUIREMENTS

| Year Ended December 31,
| 2017 | 2016 | 2015 | 2014 | 2013
| (dollars in millions)
EARNINGS: |  |  |  |  |
Net income |  | $227.0 |  |  | $225.8 |  |  | $196.2 |  |  | $191.8 |  |  | $188.3 |
Income tax benefit (a) | (10.9 | ) | (5.9 | ) | (22.7 | ) | (48.9 | ) | (36.3 | )
Income before income taxes | 216.1 |  | 219.9 |  | 173.5 |  | 142.9 |  | 152.0 |
Fixed charges as defined | 113.0 |  | 103.7 |  | 97.2 |  | 91.0 |  | 82.3 |
Total earnings as defined |  | $329.1 |  |  | $323.6 |  |  | $270.7 |  |  | $233.9 |  |  | $234.3 |
FIXED CHARGES: |  |  |  |  |
Interest expense |  | $112.4 |  |  | $103.2 |  |  | $96.8 |  |  | $89.9 |  |  | $81.3 |
Estimated interest component of rent expense | 0.6 |  | 0.5 |  | 0.4 |  | 1.1 |  | 1.0 |
Total fixed charges as defined |  | $113.0 |  |  | $103.7 |  |  | $97.2 |  |  | $91.0 |  |  | $82.3 |
Ratio of Earnings to Fixed Charges | 2.91 |  | 3.12 |  | 2.78 |  | 2.57 |  | 2.85 |
Preferred dividend requirements (pre-tax basis) (b) |  | $9.7 |  |  | $9.9 |  |  | $9.0 |  |  | $7.6 |  |  | $8.7 |
Fixed charges and preferred dividend requirements |  | $122.7 |  |  | $113.6 |  |  | $106.2 |  |  | $98.6 |  |  | $91.0 |
Ratio of Earnings to Combined Fixed Charges and Preferred Dividend Requirements | 2.68 |  | 2.85 |  | 2.55 |  | 2.37 |  | 2.57 |

(a) Includes net interest related to unrecognized tax benefits.
(b) Preferred dividend requirements (pre-tax basis) are computed by dividing the preferred dividend requirements by one hundred percent minus the respective annual effective income tax rate. Excludes the impact of charges related to Interstate Power and Light Company’s preferred stock redemption in 2013.