Final answer:
The marginal tax rate is the rate at which the last dollar of income is taxed. Megan's tax owed and average tax rate would be calculated based on the different rates in the relevant tax brackets. The value of tax advice for sheltering income is connected to the amount of tax saved at Megan's marginal tax rate.
Step-by-step explanation:
Understanding Marginal Tax Rate
To understand how the marginal tax rate works, consider the tax rate structure provided in the question. Megan's marginal tax rate is the rate at which her last dollar of income is taxed. Since we don't have the tax brackets specific to Megan's $100,000 income, let's use the example provided: a single taxpayer earning $35,000 falls into the 15% tax bracket because this is where their last dollar is taxed. For Megan, her marginal tax rate would be determined by which tax rate applies to income levels at and above $100,000.
Calculating Income Tax and Average Tax Rate
Once Megan knows her marginal tax rate, she can calculate her total tax liability by applying the respective rates to the income within each bracket. Assuming the same rate structure applies to higher incomes, Megan would need to add up the tax amounts from each bracket up to her total income. The average tax rate is calculated by dividing her total tax liability by her total income.
Value of Tax Advice
When considering tax advice to shelter income, the maximum amount Megan might be willing to pay would be equal to the tax she would have saved on that $2,000 given her marginal tax rate. This is because the marginal rate represents the potential tax impact on additional income or deductions.