§ 1.1402(c)-2. Public office.

¶(A) Any individual who in 1968 receives fees for service performed by him with respect to the functions of a public office of a State or a political subdivision thereof in any period in which the functions are performed in a position compensated solely on a fee basis may elect, if the performance of the service for which such fees are received constitutes a trade or business pursuant to the provisions of subdivision (i) of this subparagraph, to have such performance of service treated as excluded from the term “trade or business” for the purpose of the tax on self-employment income, pursuant to the provisions of section 122(c)(2) of the Social Security Amendments of 1967 (as quoted in § 1.1402(c)). Such election shall not be limited to service to which the fees received in 1968 are attributable but must also be applicable to service (if any) in subsequent years which, except for the election, would constitute a trade or business pursuant to the provisions of subdivision (i) of this subparagraph. An election made pursuant to the provisions of this subparagraph is irrevocable.

¶(B) The election referred to in subdivision (ii)(A) of this subparagraph shall be made by filing a certificate of election of exemption (Form 4415) on or before the due date of the income tax return (see section 6072), including any extension thereof (see section 6081), for the taxable year of the individual making the election which begins in 1968. The certificate of election of exemption shall be filed with an internal revenue office in accordance with the instructions on the certificate.