In general
If 1 or more individuals for whom a taxpayer is allowed a deduction under section 151 (relating to allowance of deduction for personal exemptions) for the taxable year (including the taxpayer or his spouse) are individuals who are not lawfully present—
(A) the aggregate amount of premiums otherwise taken into account under clauses (i) and (ii) of subsection (b)(2)(A) shall be reduced by the portion (if any) of such premiums which is attributable to such individuals, and
(B) for purposes of applying this section, the determination as to what percentage a taxpayer’s household income bears to the poverty level for a family of the size involved shall be made under one of the following methods: (i) A method under which— (I) the taxpayer’s family size is determined by not taking such individuals into account, and (II) the taxpayer’s household income is equal to the product of the taxpayer’s household income (determined without regard to this subsection) and a fraction— (aa) the numerator of which is the poverty line for the taxpayer’s family size determined after application of subclause (I), and (bb) the denominator of which is the poverty line for the taxpayer’s family size determined without regard to subclause (I). (ii) A comparable method reaching the same result as the method under clause (i).