Final answer:
The marginal tax rate is the rate at which an individual's income is taxed. For a single woman with a taxable income of $12,000 and a $3,000 tax credit, the tax owed is $1,200. However, since there is a tax credit of $3,000, the final tax owed is -$1,800, resulting in a tax refund of $1,800.
Step-by-step explanation:
The marginal tax rate is the rate at which an individual's income is taxed. In this case, the question asks for the tax owed by a single woman with a taxable income of $12,000 and a $3,000 tax credit using the 2016 marginal tax rates. To compute the tax owed, we need to find the income range in which $12,000 falls and use the corresponding tax rate.
For 2016, the marginal tax rates for a single taxpayer ranged from 10% to 39.6%, depending on income. Let's assume the tax rates are as follows:
- 10% for income up to $9,275
- 15% for income between $9,275 and $37,650
- 25% for income between $37,650 and $91,150
- 28% for income between $91,150 and $190,150
- 33% for income between $190,150 and $413,350
- 35% for income between $413,350 and $415,050
- 39.6% for income above $415,050
Since the taxable income is $12,000, it falls within the 10% tax bracket. The tax owed is calculated by applying the tax rate to the taxable income. In this case, the tax owed is $12,000 x 10% = $1,200. However, since there is a $3,000 tax credit, the final tax owed would be $1,200 - $3,000 = -$1,800. This means the single woman would receive a tax refund of $1,800.