potential additional taxes

The term “potential additional taxes” means, with respect to any State for any taxable year, the aggregate amount of the additional tax which would be payable under this chapter for such taxable year by all taxpayers subject to the unemployment compensation law of such State for such taxable year if paragraph (2) of subsection (c) had applied to such taxable year and any preceding taxable year without regard to this subsection but with regard to subsection (f).