213 of the Internal Revenue Code of 1986 is amended by striking 10 percent and inserting 7.5 percent . (b) Effective date The amendment made by this section shall apply to taxable years beginning after December 31, 2017. 218. Repeal of Medicare tax increase (a) In general Subsection (b) of section 3101 of the Internal Revenue Code of 1986 is amended to read as follows: (b) Hospital insurance In addition to the tax imposed by the preceding subsection, there is hereby imposed on the income of every individual a tax equal to 1.45 percent of the wages (as defined in section 3121(a)) received by such individual with respect to employment (as defined in section 3121(b). . (b) SECA Subsection (b) of section 1401 of the Internal Revenue Code of 1986 is amended to read as follows: (b) Hospital insurance In addition to the tax imposed by the preceding subsection, there shall be imposed for each taxable year, on the self-employment income of every individual, a tax equal to 2.9 percent of the amount of the self-employment income for such taxable year. . (c) Effective date The amendments made by this section shall apply with respect to remuneration received after, and taxable years beginning after, December 31, 2017. 219. Repeal of tanning tax (a) In general The Internal Revenue Code of 1986 is amended by striking chapter 49. (b) Effective date The amendment made by this section shall apply to services performed on or after December 31, 2017. 220. Repeal of net investment tax (a) In general Subtitle A of the Internal Revenue Code of 1986 is amended by striking chapter 2A. (b) Effective date The amendment made by this section shall apply to taxable years beginning after December 31, 2017. 221. Remuneration Paragraph (6) of section 162(m) of the Internal Revenue Code of 1986 is amended by adding at the end the following new subparagraph: (I) Termination This paragraph shall not apply to taxable years beginning after December 31, 2017. . 222. Economic substance doctrine (a) In general Subsection (o) of section 7701 of the