Time for filing application

Any individual who desires to file an application pursuant to paragraph (1) must file such application on or before the due date of the return (including any extension thereof) for the second taxable year for which he has net earnings from self-employment (computed without regard to subsections (c)(4) and (c)(5)) of $400 or more, any part of which was derived from the performance of service described in subsection (c)(4) or (c)(5).