to any amount for which a deduction is allowed under this section, section 904(c) shall be applied by substituting first 20 succeeding taxable years for first 10 succeeding taxable years . (h) Election to pay liability in installments (1) In general In the case of a United States shareholder of a deferred foreign income corporation, such United States shareholder may elect to pay the net tax liability under this section in 8 equal installments. (2) Date for payment of installments If an election is made under paragraph (1), the first installment shall be paid on the due date (determined without regard to any extension of time for filing the return) for the return of tax for the taxable year described in subsection (a) and each succeeding installment shall be paid on the due date (as so determined) for the return of tax for the taxable year following the taxable year with respect to which the preceding installment was made. (3) Acceleration of payment If there is an addition to tax for failure to timely pay any installment required under this subsection, a liquidation or sale of substantially all the assets of the taxpayer (including in a title 11 or similar case), a cessation of business by the taxpayer, or any similar circumstance, then the unpaid portion of all remaining installments shall be due on the date of such event (or in the case of a title 11 or similar case, the day before the petition is filed). The preceding sentence shall not apply to the sale of substantially all the assets of a taxpayer to a buyer if such buyer enters into an agreement with the Secretary under which such buyer is liable for the remaining installments due under this subsection in the same manner as if such buyer were the taxpayer. (4) Proration of deficiency to installments If an election is made under paragraph (1) to pay the net tax liability under this section in installments and a deficiency has been assessed with respect to such net tax liability, the deficiency shall be prorated to the installments payable under paragraph