Tax liability, marginal tax rate, and average tax rate Using the tax rate schedule given here, and assuming that a partner of a business receiving the income described below files federal income taxes as a single taxpayer, perform the following: a. Calculate the tax liability, after-tax earnings, marginal tax rates, and average tax rates for the following levels of partnership earnings before taxes: $16,200;$64,700;$276,600; $282,000; $1 million; $1.5 million; and $2 million. b. Plot the marginal tax rates (measured on the y-axis) against the pretax income levels (measured on the x-axis). Explain the relationship between these variables. a. The marginal tax rate for earnings before taxes of $16,200 is 12%. (Round to the nearest integer.) The tax liability for earnings before taxes of $16,200 is $ (Round to the nearest dollar.) Then, the after-tax earnings is $ (Round to the nearest dollar.) The average tax rate for earnings before taxes of $16,200 is %. (Round to two decimal places.) More info