June and Gus are married and file a joint rotum. They expect to have $520,000 of taxable income in the next ynar and are considering whether to purchase a personal residence to deductions of $156,000 for mortgage interest and real estate taxes Click the icon to view the 2021 tax rate schedule for the Married fling jointly filing status) Read the requirements Requirements. What is their marginal tax rate for purposes of making this decision? (Enter amounts as percentages to one decimal place.) What is the marginal tax rate if the personal residence is not purchased What is the marginal tax rate. If the personal residence is purchased? a. What is their marginal tax rate for purposes of making this decision? What is the tax savings if the residence is acquired? b. . Married, Filing Joint and Surviving Spouse If taxable income is: The tax is: Not over $19,900 10% of taxable income. Over $19,900 but not over $81,050 $1,990.00 + 12% of the excess over $19,900. Over $81,050 but not over $172,750 $9,328.00 + 22% of the excess over $81,050. Over $172,750 but not over $329,850 $29,502.00 +24% of the exess over $172,750. Over $329,850 but not over $418,850 $67,206.00 + 32% of the excess over $329,850. Over $418,850 but not over $628,300 $95,686,00 + 35% of the excess over $418,850 Over $628,300 $168,993,50 + 37% of the excess over $628,300