Section 367.1900 - Account 190, Accumulated deferred income taxes(a) This account must be debited and account 411.1, Provision for deferred income taxes-Credit, operating income (§ 367.4111 ), or account 411.2, Provision for deferred income taxes-Credit, other income and deductions (§ 367.4112 ), as appropriate, must be credited with an amount equal to that by which income taxes payable for the year are higher because of the inclusion of certain items in income for tax purposes, which items for general accounting purposes will not be fully reflected in the service company's determination of annual net income until subsequent years.(b) This account must be credited and account 410.1, Provision for deferred income taxes, operating income (§ 367.4101 ), or account 410.2, Provision for deferred income taxes, other income and deductions (§ 367.4102 ), as appropriate, must be debited with an amount equal to that by which income taxes payable for the year are lower because of prior payment of taxes as provided by paragraph (a) of this section, because of difference in timing for tax purposes of particular items of income or income deductions from that recognized by the utility for general accounting purposes. The credit to this account and debit to account 410.1 (§ 367.4101 ), or 410.2 (§ 367.4102 ) must, in general, represent the effect on taxes payable in the current year of the smaller amount of book income recognized for tax purposes as compared to the amount recognized in the service company's current accounts with respect to the item or class of items for which deferred tax accounting by the service company was authorized by the Commission.(c) The service company is restricted in its use of this account to the purpose provided in paragraphs (a) and (b) of this section. The service company must not make use of the balance in this account or any related portion except as provided in the text of this account, without prior approval of the Commission. Any remaining deferred tax account balance with respect to an amount for any prior year's tax deferral, the amortization of which or other recognition in the service company's income accounts has been completed, or other disposition made, must be debited to account 410.1, Provision for deferred income taxes, operating income (§ 367.4101 ), or account 410.2, Provision for deferred income taxes, other income and deductions (§ 367.4102 ), as appropriate, or otherwise disposed of as the Commission may authorize or direct. (See General Instructions in § 367.17 .)