2018 Tax Rate Schedules Individuals Schedule X-Single If taxable income is over: But not over: The tax is $ 9,525 10% of taxable income $ 9,525 $ 38,700 S 82,500 $952.50 plus 12 % of the excess over $9,525 38,700 S S2,500 $4,453.50 plus 22% of the excess over $38,700 $14,089.50 plus 24% of the excess over $82,500 $157,500 $32,089.50 plus 32% of the excess over $157,500 $157,500 $200,000 $200,000 $500,000 $45,689.50 plus 35% of the excess over S200,000 $150,689.50 plus 37% ofthe excess over $500,000 $500,000 Schedule Y-1-Married Filing Jointly or Qualifying Widow(er) The tax is 10% oftaxable income ss If taxable income is over: But not over $ 19,050 $1,905 plus 12% of the excess over $19,050 $8,907 plus 22% of the excess over $77,400 19,050 77,400 $ 77,400 $165,000 $28,179 plus 24 % of the excess over $165,000 $64,179 plus 329% of the excess over $315,000 $315,000 $165,000 $315,000 $400,000 $91,379 plus 35% of the excess over $400,000 $161,379 plus 37% of the excess over $600,000 $600,000 $400,000 $600,000 Schedule Z-Head of Household If taxable income is over: But not over The tax is: 0 $13,600 10% of taxable income $ 51,800 13,600 $1,360 plus 12 % of the excess over $13,600 $5,944 plus 22% of the excess over $51,800 51,800 82,500 $12,698 plus 24% of the excess over $82,500 S2,500 $157,500 $30,698 plus 32% of the excess over $157,500 $44,298 plus 35% of the excess over $200,000 $157,500 $200,000 $500,000 $200,000 $149,298 plus 37% of the excess over $500,000 $500,000 Schedule Y-2-Married Filing Separately If taxable income is over: But not over: The tax is: 10% oftaxable income 9,525 $952.50 plus 12 % of the excess over $9,525 9,525 $38,700 $4,453.50 plus 22% of the excess over $38,700 $14,089.50 plus 24% of the excess over $82,500 $32,089.50 plus 32% of the excess over $157,500 $45,689.50 plus 35% of the excess over $200,000 38,700 S2,500 S2,500 $157,500 $157,500 $200,000 $200,000 $300,000 $80,689.50 plus 37% of the excess over S300,000 $300,000 Chuck, a single taxpayer, earns $57,500 In taxable Income and $19,500 In interest from an Investment in City of Heflin bonds. (Use the U.S. tax rate schedule.) Required: a. If Chuck earns an addltional $39,500 of taxable Income, what Is his marginal tax rate on this Income? b. What Is his marginal rate if, Instead, he had $39,500 of additional deductions? (For all requirements, do not round intermediate calculations. Round your answers to 2 decimal places.) Marginal tax rate . b. Marginal tax rate