Answer: Her total tax liability is $19,790.23
Explanation:
In calculating Alice's self employment tax liability and medicare tax liability, her net business profit from Schedule C is multiplied by 92.35%.
$150,000 x 92.35% = $138,525.
Being that the maximum taxable amount is $127,200, Alice will owe $127,200 x 12.4% = $15,772.80 in Social Security taxes and
$4,017.23 ($138,525 x 2.9%) for the Medicare component of FICA taxes.
Therefore, the total self-employment tax is $19,790.03 ($15,772.80+ $4,017.23).