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Capital Gains Tax worksheet

Grades 7–8 · CCSS 7.RP.A.3

Solve each problem and show your work. Round answers to 2 decimal places where needed.

  1. Problem 1.
    • Purchase price (cost basis): $14,000
    • Sale price: $27,500
    • How long did you own it?: 1 year or less (short-term)
    • Filing status (2026): Single
    • Other income for the year: $52,500

    Find: Estimated tax on this sale

  2. Problem 2.
    • Purchase price (cost basis): $8,000
    • Sale price: $17,000
    • How long did you own it?: More than 1 year (long-term)
    • Filing status (2026): Single
    • Other income for the year: $64,000

    Find: Estimated tax on this sale

  3. Problem 3.
    • Purchase price (cost basis): $10,500
    • Sale price: $30,000
    • How long did you own it?: 1 year or less (short-term)
    • Filing status (2026): Married filing separately
    • Other income for the year: $48,000

    Find: Estimated tax on this sale

  4. Problem 4.
    • Purchase price (cost basis): $8,200
    • Sale price: $27,500
    • How long did you own it?: More than 1 year (long-term)
    • Filing status (2026): Married filing separately
    • Other income for the year: $60,000

    Find: Estimated tax on this sale

  5. Problem 5.
    • Purchase price (cost basis): $14,000
    • Sale price: $22,000
    • How long did you own it?: 1 year or less (short-term)
    • Filing status (2026): Head of household
    • Other income for the year: $80,000

    Find: Estimated tax on this sale

  6. Problem 6.
    • Purchase price (cost basis): $12,250
    • Sale price: $20,000
    • How long did you own it?: More than 1 year (long-term)
    • Filing status (2026): Married filing separately
    • Other income for the year: $64,000

    Find: Estimated tax on this sale

  7. Problem 7.
    • Purchase price (cost basis): $7,500
    • Sale price: $22,000
    • How long did you own it?: 1 year or less (short-term)
    • Filing status (2026): Head of household
    • Other income for the year: $42,000

    Find: Estimated tax on this sale

  8. Problem 8.
    • Purchase price (cost basis): $9,500
    • Sale price: $22,500
    • How long did you own it?: More than 1 year (long-term)
    • Filing status (2026): Married filing separately
    • Other income for the year: $68,000

    Find: Estimated tax on this sale

  9. Problem 9.
    • Purchase price (cost basis): $11,750
    • Sale price: $30,000
    • How long did you own it?: More than 1 year (long-term)
    • Filing status (2026): Head of household
    • Other income for the year: $40,000

    Find: Estimated tax on this sale

  10. Problem 10.
    • Purchase price (cost basis): $12,000
    • Sale price: $26,000
    • How long did you own it?: 1 year or less (short-term)
    • Filing status (2026): Married filing jointly
    • Other income for the year: $45,000

    Find: Estimated tax on this sale

Answer key: Capital Gains Tax worksheet

  1. 1. Estimated tax on this sale: $1,620.00

    1. Find your profit (the capital gain): the sale price, minus selling costs, minus what you paid

      $27,500.00−$14,000.00=$13,500.00
    2. Find the rest of your taxable income: your other income minus the 2026 standard deduction for single filers. The gain is stacked on top of this

      $52,500.00−$16,100.00=$36,400.00
    3. A short-term gain is taxed like wages. So find your tax with the gain, then take away your tax without it

      $5,740.00−$4,120.00=$1,620.00
    4. Find your effective rate: the tax as a share of the gain, so you see what you really pay

      $1,620.00$13,500.00=12%
  2. 2. Estimated tax on this sale: $1,117.50

    1. Find your profit (the capital gain): the sale price, minus selling costs, minus what you paid

      $17,000.00−$8,000.00=$9,000.00
    2. Find the rest of your taxable income: your other income minus the 2026 standard deduction for single filers. The gain is stacked on top of this

      $64,000.00−$16,100.00=$47,900.00
    3. The part of the gain that keeps your total taxable income under $49,450.00 is taxed at 0%

      $1,550.00×0%=$0.00
    4. The part up to $545,500.00 is taxed at 15%

      $7,450.00×15%=$1,117.50
    5. Add up the parts to get your federal tax on a long-term gain

      federal tax on the gain=$1,117.50
    6. Find your effective rate: the tax as a share of the gain, so you see what you really pay

      $1,117.50$9,000.00=12.42%
  3. 3. Estimated tax on this sale: $2,440.00

    1. Find your profit (the capital gain): the sale price, minus selling costs, minus what you paid

      $30,000.00−$10,500.00=$19,500.00
    2. Find the rest of your taxable income: your other income minus the 2026 standard deduction for married filing separately filers. The gain is stacked on top of this

      $48,000.00−$16,100.00=$31,900.00
    3. A short-term gain is taxed like wages. So find your tax with the gain, then take away your tax without it

      $6,020.00−$3,580.00=$2,440.00
    4. Find your effective rate: the tax as a share of the gain, so you see what you really pay

      $2,440.00$19,500.00=12.51%
  4. 4. Estimated tax on this sale: $2,062.50

    1. Find your profit (the capital gain): the sale price, minus selling costs, minus what you paid

      $27,500.00−$8,200.00=$19,300.00
    2. Find the rest of your taxable income: your other income minus the 2026 standard deduction for married filing separately filers. The gain is stacked on top of this

      $60,000.00−$16,100.00=$43,900.00
    3. The part of the gain that keeps your total taxable income under $49,450.00 is taxed at 0%

      $5,550.00×0%=$0.00
    4. The part up to $306,850.00 is taxed at 15%

      $13,750.00×15%=$2,062.50
    5. Add up the parts to get your federal tax on a long-term gain

      federal tax on the gain=$2,062.50
    6. Find your effective rate: the tax as a share of the gain, so you see what you really pay

      $2,062.50$19,300.00=10.69%
  5. 5. Estimated tax on this sale: $960.00

    1. Find your profit (the capital gain): the sale price, minus selling costs, minus what you paid

      $22,000.00−$14,000.00=$8,000.00
    2. Find the rest of your taxable income: your other income minus the 2026 standard deduction for head of household filers. The gain is stacked on top of this

      $80,000.00−$24,150.00=$55,850.00
    3. A short-term gain is taxed like wages. So find your tax with the gain, then take away your tax without it

      $7,308.00−$6,348.00=$960.00
    4. Find your effective rate: the tax as a share of the gain, so you see what you really pay

      $960.00$8,000.00=12%
  6. 6. Estimated tax on this sale: $930.00

    1. Find your profit (the capital gain): the sale price, minus selling costs, minus what you paid

      $20,000.00−$12,250.00=$7,750.00
    2. Find the rest of your taxable income: your other income minus the 2026 standard deduction for married filing separately filers. The gain is stacked on top of this

      $64,000.00−$16,100.00=$47,900.00
    3. The part of the gain that keeps your total taxable income under $49,450.00 is taxed at 0%

      $1,550.00×0%=$0.00
    4. The part up to $306,850.00 is taxed at 15%

      $6,200.00×15%=$930.00
    5. Add up the parts to get your federal tax on a long-term gain

      federal tax on the gain=$930.00
    6. Find your effective rate: the tax as a share of the gain, so you see what you really pay

      $930.00$7,750.00=12%
  7. 7. Estimated tax on this sale: $1,740.00

    1. Find your profit (the capital gain): the sale price, minus selling costs, minus what you paid

      $22,000.00−$7,500.00=$14,500.00
    2. Find the rest of your taxable income: your other income minus the 2026 standard deduction for head of household filers. The gain is stacked on top of this

      $42,000.00−$24,150.00=$17,850.00
    3. A short-term gain is taxed like wages. So find your tax with the gain, then take away your tax without it

      $3,528.00−$1,788.00=$1,740.00
    4. Find your effective rate: the tax as a share of the gain, so you see what you really pay

      $1,740.00$14,500.00=12%
  8. 8. Estimated tax on this sale: $1,950.00

    1. Find your profit (the capital gain): the sale price, minus selling costs, minus what you paid

      $22,500.00−$9,500.00=$13,000.00
    2. Find the rest of your taxable income: your other income minus the 2026 standard deduction for married filing separately filers. The gain is stacked on top of this

      $68,000.00−$16,100.00=$51,900.00
    3. The part up to $306,850.00 is taxed at 15%

      $13,000.00×15%=$1,950.00
    4. Add up the parts to get your federal tax on a long-term gain

      federal tax on the gain=$1,950.00
    5. Find your effective rate: the tax as a share of the gain, so you see what you really pay

      $1,950.00$13,000.00=15%
  9. 9. Estimated tax on this sale: $0.00

    1. Find your profit (the capital gain): the sale price, minus selling costs, minus what you paid

      $30,000.00−$11,750.00=$18,250.00
    2. Find the rest of your taxable income: your other income minus the 2026 standard deduction for head of household filers. The gain is stacked on top of this

      $40,000.00−$24,150.00=$15,850.00
    3. The part of the gain that keeps your total taxable income under $66,200.00 is taxed at 0%

      $18,250.00×0%=$0.00
    4. Add up the parts to get your federal tax on a long-term gain

      federal tax on the gain=$0.00
    5. Find your effective rate: the tax as a share of the gain, so you see what you really pay

      $0.00$18,250.00=0%
  10. 10. Estimated tax on this sale: $1,440.00

    1. Find your profit (the capital gain): the sale price, minus selling costs, minus what you paid

      $26,000.00−$12,000.00=$14,000.00
    2. Find the rest of your taxable income: your other income minus the 2026 standard deduction for married filing jointly filers. The gain is stacked on top of this

      $45,000.00−$32,200.00=$12,800.00
    3. A short-term gain is taxed like wages. So find your tax with the gain, then take away your tax without it

      $2,720.00−$1,280.00=$1,440.00
    4. Find your effective rate: the tax as a share of the gain, so you see what you really pay

      $1,440.00$14,000.00=10.29%