The wilmoths plan to purchase a house but want to determine the after-tax cost of financing its purchase. given their projected taxable income, the wilmoths are in the 24% federal income tax bracket and the 8% state income tax bracket (i. e., an aggregate marginal tax bracket of 32%). assume that the wilmoths will benefit from itemizing their deductions for both federal and state purposes. the total cash outlay during the first year of ownership will be $27,600 ($2,760 principal payments, $24,840 qualified residence interest payments).