of liability A transfer described in clause (iii) shall not be treated as a triggering event if the transferee enters into an agreement with the Secretary under which such transferee is liable for net tax liability with respect to such stock in the same manner as if such transferee were the taxpayer. (3) Net tax liability A shareholder’s net tax liability under this section with respect to any S corporation is the net tax liability under this section which would be determined under subsection (h)(6) if the only subpart F income taken into account by such shareholder by reason of this section were allocations from such S corporation. (4) Election to pay deferred liability in installments In the case of a taxpayer which elects to defer payment under paragraph (1)— (A) subsection (h) shall be applied separately with respect to the liability to which such election applies, (B) an election under subsection (h) with respect to such liability shall be treated as timely made if made not later than the due date for the return of tax for the taxable year in which the triggering event with respect to such liability occurs, (C) the first installment under subsection (h) with respect to such liability shall be paid not later than such due date (but determined without regard to any extension of time for filing the return), and (D) if the triggering event with respect to any net tax liability is described in paragraph (2)(A)(ii), an election under subsection (h) with respect to such liability may be made only with the consent of the Secretary. (5) Joint and several liability of S corporation If any shareholder of an S corporation elects to defer payment under paragraph (1), such S corporation shall be jointly and severally liable for such payment and any penalty, addition to tax, or additional amount attributable thereto. (6) Extension of limitation on collection Notwithstanding any other provision of law, any limitation on the time period for the collection of a liability deferred under this subsection shall not be treated as