In general— For purposes of any return made under section 6012(a)(1), 6013, or 6017 on the basis of calendar year 2018, section 6072(a) of the Internal Revenue Code of 1986 shall be applied by substituting “20th day of May” for “15th day of April”.
Interest on withholding overpayments— For the purposes of any tax deducted and withheld at the source during calendar year 2018, section 6513(b)(1) of the Internal Revenue Code of 1986 shall be applied by inserting “(the 20th day of May in the case of a taxable year ending on December 31, 2018)” before the period at the end.
Failure by individual To pay estimated income tax— In the case of an installment of estimated tax with respect to 2018, section 6654(b)(2)(A) of the Internal Revenue Code of 1986 shall be applied by inserting “(the 20th day of May in the case of a taxable year ending on December 31, 2018)” before the comma at the end.