In Commission proceedings to establish revenue requirements or address over-earnings, other than those entered into under Fl. Admin. Code R. 25-14.003, the income tax expense of a regulated company shall be adjusted to reflect the income tax expense of the parent debt that may be invested in the equity of the subsidiary where a parent-subsidiary relationship exists and the parties to the relationship join in the filing of a consolidated income tax return.
    (1) Where the regulated utility is a subsidiary of a single parent, the income tax effect of the parent’s debt invested in the equity of the subsidiary utility shall reduce the income tax expense of the utility.
    (2) Where the regulated utility is a subsidiary of tiered parents, the adjusted income tax effect of the debt of all parents invested in the equity of the subsidiary utility shall reduce the income tax expense of the utility.
    (3) The capital structure of the parent used to make the adjustment shall include at least long term debt, short term debt, common stock, cost free capital and investment tax credits, excluding retained earnings of the subsidiaries. It shall be a rebuttable presumption that a parent’s investment in any subsidiary or in its own operations shall be considered to have been made in the same ratios as exist in the parent’s overall capital structure.
    (4) The adjustment shall be made by multiplying the debt ratio of the parent by the debt cost of the parent. This product shall be multiplied by the statutory tax rate applicable to the consolidated entity. This result shall be multiplied by the equity dollars of the subsidiary, excluding its retained earnings. The resulting dollar amount shall be used to adjust the income tax expense of the utility.
Rulemaking Authority Florida Statutes § 350.127(2). Law Implemented 366.05(1), 367.121(1)(a) FS. History-New 1-25-83, Formerly 25-14.04.