Cal. Code Regs. tit. 18, § 24426
(2) Taxes and Carrying Charges.
(A) The taxpayer may elect, as provided in subsection (3) of this regulation, to treat the items enumerated in this paragraph which are otherwise expressly deductible under the provisions of Article 1 of Chapter 7 as chargeable to capital accounts as a component of original cost or other basis, for the purposes of Section 24912, or as an adjustment to basis, for the purposes of Section 24916. The items thus chargeable to capital account are--
(ii) In the case of real property, whether improved or unimproved and whether productive or unproductive:
(iii) In the case of personal property:
(C) In the absence of a provision in this regulation for treating a given item as a capital item, this regulation has no effect on the treatment otherwise accorded such item. Thus, items which are otherwise deductible are deductible notwithstanding the provisions of these regulation, and items which are otherwise treated as capital items are to be so treated.
Similarly, an item not otherwise deductible is not made deductible by this regulation. Nor is the absence of a provision in this regulation for treating a given item as a capital item to be construed as withdrawing or modifying the right now given to the taxpayer under any other provisions of Article 1 of Chapter 7, or of the regulations thereunder, to elect to capitalize or to deduct a given item.
(3) Election to Charge Taxes and Carrying Charges to Capital Account.
(B) (i) An election with respect to an item described in subsection (2) (A) (i) of this regulation is effective only for the year for which it is made.
(ii) An election with respect to an item described in-
(4) The following examples are illustrative of the application of the provisions of this regulation:
EXAMPLE (1).
In 1956 and 1957 taxpayer A pays annual taxes and interest on a mortgage on a piece of real property. During 1956, the property is vacant and unproductive, but throughout 1957 A operates the property as a parking lot. A may capitalize the taxes and mortgage interest paid in 1956, but not the taxes and mortgage interest paid in 1957.
EXAMPLE (2).
In February 1957, taxpayer B began the erection of an office building for itself. B in 1957, in connection with the erection of the building, paid $6,000 social security taxes, which in its 1957 return it elected to capitalize. B must continue to capitalize the social security taxes paid in connection with the erection of the building until its completion.
EXAMPLE (3).
Assume the same facts as in example (2) except that in November 1957, B also begins to build a hotel. In 1957 B pays $3,000 social security taxes in connection with the erection of the hotel. B's election to capitalize the social security taxes paid in erecting the office building started in February 1957 does not bind it to capitalize the social security taxes paid in erecting the hotel; it may deduct the $3,000 social security taxes paid in erecting the hotel.
EXAMPLE (4).
In 1957, M Corporation began the erection of a building for itself, which will take three years to complete. M Corporation in 1957 paid $4,000 social security taxes and $8,000 interest on a building loan in connection with this building. M Corporation may elect to capitalize the social security taxes although it deducts the interest charges.
EXAMPLE (5).
Taxpayer C purchases machinery in 1957 for use in its factory. It pays social security taxes on the labor for transportation and installation of the machinery, as well as interest on a loan to obtain funds to pay for the machinery and for transportation and installation costs. C may capitalize either the social security taxes or the interest, or both, up to the date of installation or until the machinery is first put into use by it, whichever date is later.
(5) Allocation. If any tax or carrying charge with respect to property is in part a type of item described in subsection (2) of this regulation and in part a type of item or items with respect to which no election to treat as a capital item is given, a reasonable proportion of such tax or carrying charge, determined in the light of all the facts and circumstances in each case, shall be allocated to each item. The rule of this subsection may be illustrated by the following example:
EXAMPLE.
N Corporation, the owner of a factory in New York on which a new addition is under construction, in 1957 pays its general manager, B, a salary of $10,000 and also pays a New York State unemployment insurance tax of $81 on B's salary. B spends nine-tenths of his time in the general business of the firm and the remaining one-tenth in supervising the construction work. N Corporation treats as expenses $9,000 of B's salary, and charges the remaining $1,000 to capital account. N Corporation may elect to capitalize $8.10 of the $81 New York State unemployment insurance tax paid in 1957 since such tax is deductible under Section 24345.
Note: Authority cited: Section 26422, Revenue and Taxation Code.
1. New section filed 12-22-69; effective thirtieth day thereafter (Register 69, No. 52).
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This regulation is substantially the same as Section 26 CFR 1.266-1.