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Daily Challenge — October 27, 2026

tax accounting · tax formula

Constance Whitfield is a single neurosurgeon based in Nashville, Tennessee, who earns a substantial salary from a large regional hospital system and also maintains a solo consulting practice that generated $64,500 in net self-employment income during 2024. She holds a diversified investment portfolio that produced interest income, ordinary and qualified dividends, and a $28,500 long-term capital gain from the sale of appreciated mutual fund shares. Her above-the-line deductions consist primarily of the deductible portion of self-employment tax and contributions to a SEP-IRA, and her itemized deductions include significant mortgage interest on her Nashville home, state and local taxes capped at $10,000, and charitable contributions to a medical research foundation.

Correct Answers

A G I

$432,600.00

gross Income

$440,700.00

tax Liability

$101,044.75

taxable Income

$391,400.00

refund Or Due Amount

$66,254.75

refund Or Due Direction

Balance Due

Step-by-Step Solution

TAX FORMULA — Constance Whitfield (SINGLE)

GROSS INCOME
  Wages:                  $337,800.00
  Interest Income:        $2,700.00
  Ordinary Dividends:     $7,200.00
  Business Income:        $64,500.00
  Capital Gain:           $28,500.00
  = Gross Income:         $440,700.00

  − Above-Line Deductions: $8,100.00
  = AGI:                  $432,600.00

DEDUCTIONS
  Standard Deduction (single): $14,600.00
  Itemized Deductions:    $41,200.00
  Deduction Used:         $41,200.00 (itemized)
  = Taxable Income:       $391,400.00

TAX CALCULATION
  Ordinary Taxable Income: $359,800.00
  Ordinary Tax:            $96,304.75
  LTCG + Qualified Div:   $31,600.00
  LTCG Tax:               $4,740.00
  − Credits:              $0.00
  = Tax Liability:        $101,044.75

  − Taxes Withheld:       $34,790.00
  = Tax Due:             $66,254.75