Special rules
For purposes of this section—
(1) Determination of liability
(1)Determination of liability∀ 3#
If the amount of any liability for tax is determined under this section—
(A) the employee’s liability for tax shall not be affected by the assessment or collection of the tax so determined,
(B) the employer shall not be entitled to recover from the employee any tax so determined, and
(C) section 3402(d) and section 6521 shall not apply.
(2)Section not to apply where employer deducts wage but not social security taxes∀ 2#
This section shall not apply to any employer with respect to any wages if—
(A) the employer deducted and withheld any amount of the tax imposed by chapter 24 on such wages, but
(B) failed to deduct and withhold the amount of the tax imposed by subchapter A of chapter 21 with respect to such wages.
(3)Section not to apply to certain statutory employees∀ 1#
This section shall not apply to any tax under subchapter A of chapter 21 with respect to an individual described in subsection (d)(3) of section 3121 (without regard to whether such individual is described in paragraph (1) or (2) of such subsection).