Reference Married, Filing Joint and Surviving Spouse The tax is: 10% of taxable income. $1,990.00+12% of the excess over $19,900. . . . . . $9,328.00 +22% of the excess over $81,050. $29,502.00 +24% of the excess over $172,750. .. $67,206.00+ 32% of the excess over $329,850. .... $95,686.00 + 35% of the excess over $418,850. $168,993.50 +37% of the excess over $628,300. If taxable income is: Not over $19,900 Over $19,900 but not over $81,050 Over $81,050 but not over $172,750 Over $172,750 but not over $329,850 Over $329,850 but not over $418,850 Over $418,850 but not over $628,300 Over $628,300 I Jessica and Gregory are married and file a joint return. They expect to have $450,000 of taxable income in the next year and are considering whether to purchase a personal residence that would provide additional tax deductions of $90,000 for mortgage interest and real estate taxes. (Click the icon to view the 2021 tax rate schedule for the Married filing jointly filing status.) Read the requirements. ... Requirement a. 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? %