The amount of net investment income tax that the taxpayer is required to pay is $231.
Net Investment Income Tax are generally imposed by the Internal Revenue on entities' net investment income.
Net investment income tax = ($6,150 - $75) * 3.8%
Net investment income tax = $6,050 * 3.8%
Net investment income tax = $231
In conclusion, the amount of net investment income tax that the taxpayer is required to pay is $231.
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