Consider a couple who jointly earn $100,000, have two children, pay $6,000 in ch
ID: 2522568 • Letter: C
Question
Consider a couple who jointly earn $100,000, have two children, pay $6,000 in child care expenses for one child, pay $20,000 in college tuition for the other child (who qualifies as a dependent), pay $6,000 in mortgage interest, and pay $9,600 in medical expenses. It makes sense to use a spreadsheet to do this problem. Assume they file their tax return jointly.
? Tuition expenses are an allowable adjustment to income
? Personal exemptions are $3,000 per person
? The standard deduction (for married couples filing jointly) is $9,000
? Medical expenses in excess of 7.5 percent of adjusted gross income are deductible as
itemized deductions.
? Mortgage interest is an itemized deduction
? For married couples filing jointly, the first $40,000 of taxable income is taxed at 15 percent
and taxable income above $40,000 is taxed at 25 percent
? When a couple’s adjusted gross income is $75,000 or below, they get a 12% child care
credit if they file jointly. For every extra dollar of AGI above $75,000, the credit is phased out at rate of 5 percent. This means if their AGI is $80,000, their credit is reduced by ($5,000)x(.05) = $250. Instead of getting a credit of (.12)$6,000, they get a credit of (.12)$6,000 – 250.
What is the couple’s AGI? (Hint: AGI is earnings minus the tuition expenses) What is their taxable income? What are their credits? What taxes do they owe after credits? What is their marginal tax rate (what happens if they earns an extra dollar)? What is their average tax rate?
Repeat part a but assume the couple earns $110,000. What is the couple’s AGI? What is their taxable income? What are their credits? What taxes do they owe after credits? What is their marginal tax rate (what happens if they earns an extra dollar)? What is their average tax rate?
Repeat part a but assume the couple earns $75,000. What is the couple’s AGI? What is their taxable income? What are their credits? What taxes do they owe after credits? What is their marginal tax rate (what happens if they earns an extra dollar)? What is their average tax rate?
Explanation / Answer
Marignal Tax Rate (9380/55400*100)
Repeat Part A Assume Couple Income $ 110000
17.38%
Computation of Income Amount Couple jointly income $100,000 Less-: Tution Exp $20,000 Adjusted Gross Income $80,000 Less- Standard Deduction $9,000 Gross Adjusted Income $71,000 Less Itmized Deduction $9,600 Medical Exp $3,600 Mortgage Interest $6,000 Taxable Income $61,400 Computation of Tax Taxable Income $61,400 Less- Personal Exemption $6,000 ($3000*2) Balance Income (After Exemption) $55,400 Tax on First $40000 @15% $6,000 Balance $15400 @25% $3,850 Tax on Total Income $9,850 Less- Credit ($720-$250) $470 Net Tax payable After Credit $9,380Related Questions
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