(a) Assessment and collections. Since the taxes imposed by section 511 are taxes imposed by subtitle A of the Code, all provisions of law and of the regulations applicable to the taxes imposed by subtitle A are applicable to the assessment and collection of the taxes imposed by section 511. Organizations subject to the tax imposed by section 511(a)(1) are subject to the same provisions, including penalties, as are provided in the case of the income tax of other corporations. In the case of a trust subject to the tax imposed by section 511(b)(1), the fiduciaries for such trust are subject to the same provisions, including penalties, as are applicable to fiduciaries in the case of the income tax of other trusts. See section 6151, et seq., and the regulations prescribed thereunder, for provisions relating to payment of tax.
(b) Returns. For requirements of filing annual returns with respect to unrelated business taxable income by organizations subject to the tax on such income, see section 6012, paragraph (e) of Sec. 1.6012-2, and paragraph (a)(5) of Sec. 1.6012-3.
(c) Taxable years, method of accounting, etc. The taxable year (fiscal year or calendar year, as the case may be) of an organization shall be determined without regard to the fact that such organization may have been exempt from tax during any prior period. See sections 441 and 446, and the regulations thereunder in this part, and section 7701 and the regulations in part 301 of this chapter (Regulations on Procedure and Administration). Similarly, in computing unrelated business taxable income, the determination of the taxable year for which an item of income or expense is taken into account shall be made under the provisions of sections 441, 446, 451, and 461, and the regulations thereunder, whether or not the item arose during a taxable year beginning before, on, or after the effective date of the provisions imposing a tax upon unrelated business taxable income. If a method for treating bad debts was selected in a return of income (other than an information return) for a previous taxable year, the taxpayer must follow such method in its returns under section 511, unless such method is changed in accordance with the provisions of Sec. 1.166-1. A taxpayer which has not previously selected a method for treating bad debts may, in its first return under section 511, exercise the option granted in Sec. 1.166-1.
(d) Foreign tax credit. See section 515 for provisions applicable to the credit for foreign taxes provided in section 901.