Identification numbers
1 rule
Solely for purposes of subsections (c)(1)(E) and (c)(3)(D), a taxpayer identification number means a social security number issued to an individual by the Social Security Administration (other than a social security number issued pursuant to clause (II) (or that portion of clause (III) that relates to clause (II)) of section 205(c)(2)(B)(i) of the Social Security Act) on or before the due date for filing the return for the taxable year.