Answer:
the highest percentage of federal tax paid
Explanation:
The marginal tax rate implies the highest tax rate applicable in a progressive tax system. It is the tax rate imposed on extra income. In a progressive tax system like the one used in the US, the tax rate rises as income increases. The marginal tax rate is the increased tax rate paid on the extra dollar earned.
The marginal tax rate is, therefore, the highest percentage of federal tax paid.
