Reg. § 1.6012-6 Returns by political organizations.

(1) In general For taxable years beginning after December 31, 1974, every political organization described in section 527(e)(1), and every fund described in section 527(f)(3) or section 527(g), and every organization described in section 501(c) and exempt from taxation under section 501(a) shall, if a tax is imposed on such an organization or fund by section 527(b), make a return of income on or before the fifteenth day of the fourth month following the close of the taxable year.

(2) Taxable years beginning after December 31, 1971, and before January 1, 1975 For taxable years beginning after December 31, 1971, and before January 1, 1975, any political organization which would be described in section 527(e)(1) if such section applied to such years shall not be required to make a return if such organization would not be required to make a return under paragraph (a)(1) of this section.