In addition, a copy of Form 8716 must be attached to Form 1065 or Form 1120 series form, whichever is applicable, for the first taxable year for which the section 444 election is made. Form 8716 shall be signed by any person who is authorized to sign Form 1065 or Form 1120 series form, whichever is applicable. (See sections 6062 and 6063, relating to the signing of returns.) The provisions of this paragraph (b)(1) may be illustrated by the following examples.
If a corporation electing to be an S corporation fails to state either of the above intentions, the District Director may, at his discretion, disregard any section 444 election for such taxpayer.
However, interest will be assessed (at the rate provided in section 6621 (a)(2)) on any required payment made after the due date (without regard to any extension for a back-up election) provided in § 1.7519-2T (a)(4)(i) or (a)(4)(ii) , whichever is applicable, for such payment. Interest will be calculated from such due date to the date such amount is actually paid. Interest assessed under this paragraph will be separate from any required payments. Thus, interest will not be subject to refund under § 1.7519-2T .
The words "SECTION 444 RETURN" should, in order to allow the Service to process the affected returns in an efficient manner, be typed or legibly printed at the top of the Form 1065 or Form 1120 series form, whichever is applicable, filed under this paragraph (c)(1)(i).
Example. J, a personal service corporation that historically used a January 31 taxable year, makes a section 444 election to retain such year for its taxable year beginning February 1, 1987. The last date (without extension) for payment of J's income tax (if any) for its taxable year beginning February 1, 1987, is April 15, 1988. However, under paragraph (c)(2)(i) of this section, no penalty under section 6651(a)(2) will be imposed on any underpayment of income tax for the period beginning April 15, 1988 and ending August 15, 1988.
26 C.F.R. §1.444-3T