or estate, and (2) the deductions allowable under sections 642(b), 651, and 661, shall be treated as allowable in arriving at adjusted gross income. . (c) Conforming amendments (1) Section 56(b)(1)(A) is amended to read as follows: (A) Certain taxes No deduction (other than a deduction allowable in computing adjusted gross income) shall be allowed for any taxes described in paragraph (1), (2), or (3) of section 164(a) or clause (ii) of section 164(b)(5)(A). . (2) Section 56(b)(1)(C), as amended by the preceding provisions of this Act, is amended by striking subparagraph (A)(ii) and inserting subparagraph (A) . (3) Section 62(a) is amended by striking subtitle in the matter preceding paragraph (1) and inserting title . (4) Section 641(c)(2)(E) is amended to read as follows: (E) Section 642(c) shall not apply. . (5) Section 1411(a)(2) is amended by striking (as defined in section 67(e)) . (6) Section 6654(d)(1)(C) is amended by striking clause (iii). (7) Section 67 is amended in the heading, by striking 2-percent floor on and inserting Denial of . (8) The table of sections for part 1 of subchapter B of chapter 1 is amended by striking the item relating to section 67 and inserting the following new item: Sec. 67. Denial of miscellaneous itemized deductions. . (d) Effective date The amendments made by this section shall apply to taxable years beginning after December 31, 2017. 146. Repeal of overall limitation on itemized deductions (a) In general Part 1 of subchapter B of chapter 1 is amended by striking section 68 (and the item relating to such section in the table of sections for such part). (b) Conforming amendments (1) Section 1(f)(7)(A), as amended by sections 121 and 141, is amended by striking or section 68(b)(2) . (2) Section 56(b)(1), as amended by the preceding provisions of this Act, is amended by striking subparagraph (E). (3) Section 164(b)(5)(H)(ii)(III) is amended by striking (as determined under section 68(b)) . (4) Section 164(b)(5)(H) is amended by adding at the end the following new clause: (iii)