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401(k) worksheet

Grades 9–11

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

  1. Problem 1.
    • Current age: 32 years
    • Retirement age: 75 years
    • Current 401(k) balance: $28,000
    • Annual salary: $54,000
    • Your contribution: 7% of salary
    • Employer match: 34% of what you put in
    • Match applies up to: 6% of salary
    • Yearly raise: 4%
    • Yearly investment return: 7%
    • Employee contribution limit (2026): $22,000
    • Catch-up allowance at 50+ (2026): $6,000
    • Inflation: 2.1%
    • Yearly withdrawal in retirement: 4% of balance

    Find: Balance at age 75

  2. Problem 2.
    • Current age: 34 years
    • Retirement age: 90 years
    • Current 401(k) balance: $29,000
    • Annual salary: $85,000
    • Your contribution: 9% of salary
    • Employer match: 62% of what you put in
    • Match applies up to: 5% of salary
    • Yearly raise: 3%
    • Yearly investment return: 7%
    • Employee contribution limit (2026): $24,000
    • Catch-up allowance at 50+ (2026): $8,000
    • Inflation: 1.6%
    • Yearly withdrawal in retirement: 4% of balance

    Find: Balance at age 90

  3. Problem 3.
    • Current age: 32 years
    • Retirement age: 74 years
    • Current 401(k) balance: $22,500
    • Annual salary: $65,000
    • Your contribution: 9% of salary
    • Employer match: 44% of what you put in
    • Match applies up to: 7% of salary
    • Yearly raise: 3%
    • Yearly investment return: 5%
    • Employee contribution limit (2026): $24,000
    • Catch-up allowance at 50+ (2026): $7,200
    • Inflation: 2.4%
    • Yearly withdrawal in retirement: 4% of balance

    Find: Balance at age 74

  4. Problem 4.
    • Current age: 36 years
    • Retirement age: 50 years
    • Current 401(k) balance: $20,000
    • Annual salary: $65,000
    • Your contribution: 8% of salary
    • Employer match: 38% of what you put in
    • Match applies up to: 5% of salary
    • Yearly raise: 3%
    • Yearly investment return: 5%
    • Employee contribution limit (2026): $26,000
    • Catch-up allowance at 50+ (2026): $9,800
    • Inflation: 2.4%
    • Yearly withdrawal in retirement: 4% of balance

    Find: Balance at age 50

  5. Problem 5.
    • Current age: 40 years
    • Retirement age: 50 years
    • Current 401(k) balance: $24,000
    • Annual salary: $45,000
    • Your contribution: 10% of salary
    • Employer match: 55% of what you put in
    • Match applies up to: 6% of salary
    • Yearly raise: 2%
    • Yearly investment return: 5%
    • Employee contribution limit (2026): $30,000
    • Catch-up allowance at 50+ (2026): $7,200
    • Inflation: 2.8%
    • Yearly withdrawal in retirement: 4% of balance

    Find: Balance at age 50

  6. Problem 6.
    • Current age: 45 years
    • Retirement age: 66 years
    • Current 401(k) balance: $27,500
    • Annual salary: $66,000
    • Your contribution: 7% of salary
    • Employer match: 60% of what you put in
    • Match applies up to: 4% of salary
    • Yearly raise: 3%
    • Yearly investment return: 6%
    • Employee contribution limit (2026): $32,000
    • Catch-up allowance at 50+ (2026): $8,750
    • Inflation: 3.2%
    • Yearly withdrawal in retirement: 4% of balance

    Find: Balance at age 66

  7. Problem 7.
    • Current age: 35 years
    • Retirement age: 72 years
    • Current 401(k) balance: $21,000
    • Annual salary: $72,500
    • Your contribution: 8% of salary
    • Employer match: 46% of what you put in
    • Match applies up to: 8% of salary
    • Yearly raise: 3%
    • Yearly investment return: 7%
    • Employee contribution limit (2026): $18,250
    • Catch-up allowance at 50+ (2026): $9,000
    • Inflation: 3.1%
    • Yearly withdrawal in retirement: 4% of balance

    Find: Balance at age 72

  8. Problem 8.
    • Current age: 37 years
    • Retirement age: 57 years
    • Current 401(k) balance: $25,000
    • Annual salary: $52,500
    • Your contribution: 7% of salary
    • Employer match: 50% of what you put in
    • Match applies up to: 4% of salary
    • Yearly raise: 4%
    • Yearly investment return: 6%
    • Employee contribution limit (2026): $27,000
    • Catch-up allowance at 50+ (2026): $6,500
    • Inflation: 3.2%
    • Yearly withdrawal in retirement: 4% of balance

    Find: Balance at age 57

  9. Problem 9.
    • Current age: 42 years
    • Retirement age: 85 years
    • Current 401(k) balance: $20,000
    • Annual salary: $65,000
    • Your contribution: 9% of salary
    • Employer match: 55% of what you put in
    • Match applies up to: 6% of salary
    • Yearly raise: 4%
    • Yearly investment return: 5%
    • Employee contribution limit (2026): $26,000
    • Catch-up allowance at 50+ (2026): $9,000
    • Inflation: 2.4%
    • Yearly withdrawal in retirement: 4% of balance

    Find: Balance at age 85

  10. Problem 10.
    • Current age: 40 years
    • Retirement age: 48 years
    • Current 401(k) balance: $18,000
    • Annual salary: $66,000
    • Your contribution: 7% of salary
    • Employer match: 55% of what you put in
    • Match applies up to: 6% of salary
    • Yearly raise: 4%
    • Yearly investment return: 9%
    • Employee contribution limit (2026): $26,000
    • Catch-up allowance at 50+ (2026): $8,500
    • Inflation: 3.2%
    • Yearly withdrawal in retirement: 4% of balance

    Find: Balance at age 48

Answer key: 401(k) worksheet

  1. 1. Balance at age 75: $2,619,866.75

    1. Count how many years you have to save before you retire

      75−32=43
    2. Find what you put in the first year: 7% of your salary

      $54,000.00×7%=$3,780.00
    3. Add your employer's match: 34% of what you put in, counting only up to 6% of your salary

      34%×$3,240.00=$1,101.60
    4. Grow the balance by the yearly return, then add this year's money from you and your employer

      balance after year 1=$28,000.00×(1+0.07)+$3,780.00+$1,101.60=$34,841.60
    5. Repeat that for 43 years, with your salary rising 4% a year

      balance at age 75=$2,619,866.75
    6. See where the money came from: your starting balance, what you put in, the match and investment growth

      $28,000.00+$415,846.80+$121,189.64+$2,054,830.31=$2,619,866.75
    7. Find what it's worth in today's dollars by dividing out the price rises over the same years

      $2,619,866.75(1+0.021)43=$1,071,944.48
    8. Estimate your first-year retirement income by taking out 4% of the balance in today's dollars

      $1,071,944.48×4%=$42,877.78
    9. Divide that yearly income by 12 to see it as a monthly amount

      $42,877.7812=$3,573.15
  2. 2. Balance at age 90: $11,273,731.90

    1. Count how many years you have to save before you retire

      90−34=56
    2. Find what you put in the first year: 9% of your salary

      $85,000.00×9%=$7,650.00
    3. Add your employer's match: 62% of what you put in, counting only up to 5% of your salary

      62%×$4,250.00=$2,635.00
    4. Grow the balance by the yearly return, then add this year's money from you and your employer

      balance after year 1=$29,000.00×(1+0.07)+$7,650.00+$2,635.00=$41,315.00
    5. Repeat that for 56 years, with your salary rising 3% a year

      balance at age 90=$11,273,731.90
    6. See where the money came from: your starting balance, what you put in, the match and investment growth

      $29,000.00+$1,054,335.96+$371,940.18+$9,818,455.76=$11,273,731.90
    7. Find what it's worth in today's dollars by dividing out the price rises over the same years

      $11,273,731.90(1+0.016)56=$4,634,683.24
    8. Estimate your first-year retirement income by taking out 4% of the balance in today's dollars

      $4,634,683.24×4%=$185,387.33
    9. Divide that yearly income by 12 to see it as a monthly amount

      $185,387.3312=$15,448.94
  3. 3. Balance at age 74: $1,863,165.79

    1. Count how many years you have to save before you retire

      74−32=42
    2. Find what you put in the first year: 9% of your salary

      $65,000.00×9%=$5,850.00
    3. Add your employer's match: 44% of what you put in, counting only up to 7% of your salary

      44%×$4,550.00=$2,002.00
    4. Grow the balance by the yearly return, then add this year's money from you and your employer

      balance after year 1=$22,500.00×(1+0.05)+$5,850.00+$2,002.00=$31,477.00
    5. Repeat that for 42 years, with your salary rising 3% a year

      balance at age 74=$1,863,165.79
    6. See where the money came from: your starting balance, what you put in, the match and investment growth

      $22,500.00+$479,835.70+$164,210.44+$1,196,619.65=$1,863,165.79
    7. Find what it's worth in today's dollars by dividing out the price rises over the same years

      $1,863,165.79(1+0.024)42=$688,102.79
    8. Estimate your first-year retirement income by taking out 4% of the balance in today's dollars

      $688,102.79×4%=$27,524.11
    9. Divide that yearly income by 12 to see it as a monthly amount

      $27,524.1112=$2,293.68
  4. 4. Balance at age 50: $189,965.88

    1. Count how many years you have to save before you retire

      50−36=14
    2. Find what you put in the first year: 8% of your salary

      $65,000.00×8%=$5,200.00
    3. Add your employer's match: 38% of what you put in, counting only up to 5% of your salary

      38%×$3,250.00=$1,235.00
    4. Grow the balance by the yearly return, then add this year's money from you and your employer

      balance after year 1=$20,000.00×(1+0.05)+$5,200.00+$1,235.00=$27,435.00
    5. Repeat that for 14 years, with your salary rising 3% a year

      balance at age 50=$189,965.88
    6. See where the money came from: your starting balance, what you put in, the match and investment growth

      $20,000.00+$88,848.89+$21,101.61+$60,015.38=$189,965.88
    7. Find what it's worth in today's dollars by dividing out the price rises over the same years

      $189,965.88(1+0.024)14=$136,293.83
    8. Estimate your first-year retirement income by taking out 4% of the balance in today's dollars

      $136,293.83×4%=$5,451.75
    9. Divide that yearly income by 12 to see it as a monthly amount

      $5,451.7512=$454.31
  5. 5. Balance at age 50: $120,868.56

    1. Count how many years you have to save before you retire

      50−40=10
    2. Find what you put in the first year: 10% of your salary

      $45,000.00×10%=$4,500.00
    3. Add your employer's match: 55% of what you put in, counting only up to 6% of your salary

      55%×$2,700.00=$1,485.00
    4. Grow the balance by the yearly return, then add this year's money from you and your employer

      balance after year 1=$24,000.00×(1+0.05)+$4,500.00+$1,485.00=$31,185.00
    5. Repeat that for 10 years, with your salary rising 2% a year

      balance at age 50=$120,868.56
    6. See where the money came from: your starting balance, what you put in, the match and investment growth

      $24,000.00+$49,273.74+$16,260.34+$31,334.48=$120,868.56
    7. Find what it's worth in today's dollars by dividing out the price rises over the same years

      $120,868.56(1+0.028)10=$91,702.72
    8. Estimate your first-year retirement income by taking out 4% of the balance in today's dollars

      $91,702.72×4%=$3,668.11
    9. Divide that yearly income by 12 to see it as a monthly amount

      $3,668.1112=$305.68
  6. 6. Balance at age 66: $411,808.83

    1. Count how many years you have to save before you retire

      66−45=21
    2. Find what you put in the first year: 7% of your salary

      $66,000.00×7%=$4,620.00
    3. Add your employer's match: 60% of what you put in, counting only up to 4% of your salary

      60%×$2,640.00=$1,584.00
    4. Grow the balance by the yearly return, then add this year's money from you and your employer

      balance after year 1=$27,500.00×(1+0.06)+$4,620.00+$1,584.00=$35,354.00
    5. Repeat that for 21 years, with your salary rising 3% a year

      balance at age 66=$411,808.83
    6. See where the money came from: your starting balance, what you put in, the match and investment growth

      $27,500.00+$132,485.36+$45,423.55+$206,399.92=$411,808.83
    7. Find what it's worth in today's dollars by dividing out the price rises over the same years

      $411,808.83(1+0.032)21=$212,530.87
    8. Estimate your first-year retirement income by taking out 4% of the balance in today's dollars

      $212,530.87×4%=$8,501.23
    9. Divide that yearly income by 12 to see it as a monthly amount

      $8,501.2312=$708.44
  7. 7. Balance at age 72: $2,212,463.45

    1. Count how many years you have to save before you retire

      72−35=37
    2. Find what you put in the first year: 8% of your salary

      $72,500.00×8%=$5,800.00
    3. Add your employer's match: 46% of what you put in, counting only up to 8% of your salary

      46%×$5,800.00=$2,668.00
    4. Grow the balance by the yearly return, then add this year's money from you and your employer

      balance after year 1=$21,000.00×(1+0.07)+$5,800.00+$2,668.00=$30,938.00
    5. Repeat that for 37 years, with your salary rising 3% a year

      balance at age 72=$2,212,463.45
    6. See where the money came from: your starting balance, what you put in, the match and investment growth

      $21,000.00+$383,810.49+$176,552.83+$1,631,100.14=$2,212,463.45
    7. Find what it's worth in today's dollars by dividing out the price rises over the same years

      $2,212,463.45(1+0.031)37=$714,999.09
    8. Estimate your first-year retirement income by taking out 4% of the balance in today's dollars

      $714,999.09×4%=$28,599.96
    9. Divide that yearly income by 12 to see it as a monthly amount

      $28,599.9612=$2,383.33
  8. 8. Balance at age 57: $320,211.30

    1. Count how many years you have to save before you retire

      57−37=20
    2. Find what you put in the first year: 7% of your salary

      $52,500.00×7%=$3,675.00
    3. Add your employer's match: 50% of what you put in, counting only up to 4% of your salary

      50%×$2,100.00=$1,050.00
    4. Grow the balance by the yearly return, then add this year's money from you and your employer

      balance after year 1=$25,000.00×(1+0.06)+$3,675.00+$1,050.00=$31,225.00
    5. Repeat that for 20 years, with your salary rising 4% a year

      balance at age 57=$320,211.30
    6. See where the money came from: your starting balance, what you put in, the match and investment growth

      $25,000.00+$109,434.44+$31,266.98+$154,509.88=$320,211.30
    7. Find what it's worth in today's dollars by dividing out the price rises over the same years

      $320,211.30(1+0.032)20=$170,546.46
    8. Estimate your first-year retirement income by taking out 4% of the balance in today's dollars

      $170,546.46×4%=$6,821.86
    9. Divide that yearly income by 12 to see it as a monthly amount

      $6,821.8612=$568.49
  9. 9. Balance at age 85: $2,360,956.09

    1. Count how many years you have to save before you retire

      85−42=43
    2. Find what you put in the first year: 9% of your salary

      $65,000.00×9%=$5,850.00
    3. Add your employer's match: 55% of what you put in, counting only up to 6% of your salary

      55%×$3,900.00=$2,145.00
    4. Grow the balance by the yearly return, then add this year's money from you and your employer

      balance after year 1=$20,000.00×(1+0.05)+$5,850.00+$2,145.00=$28,995.00
    5. Repeat that for 43 years, with your salary rising 4% a year

      balance at age 85=$2,360,956.09
    6. See where the money came from: your starting balance, what you put in, the match and investment growth

      $20,000.00+$643,572.43+$235,976.56+$1,461,407.09=$2,360,956.09
    7. Find what it's worth in today's dollars by dividing out the price rises over the same years

      $2,360,956.09(1+0.024)43=$851,510.04
    8. Estimate your first-year retirement income by taking out 4% of the balance in today's dollars

      $851,510.04×4%=$34,060.40
    9. Divide that yearly income by 12 to see it as a monthly amount

      $34,060.4012=$2,838.37
  10. 10. Balance at age 48: $120,704.30

    1. Count how many years you have to save before you retire

      48−40=8
    2. Find what you put in the first year: 7% of your salary

      $66,000.00×7%=$4,620.00
    3. Add your employer's match: 55% of what you put in, counting only up to 6% of your salary

      55%×$3,960.00=$2,178.00
    4. Grow the balance by the yearly return, then add this year's money from you and your employer

      balance after year 1=$18,000.00×(1+0.09)+$4,620.00+$2,178.00=$26,418.00
    5. Repeat that for 8 years, with your salary rising 4% a year

      balance at age 48=$120,704.30
    6. See where the money came from: your starting balance, what you put in, the match and investment growth

      $18,000.00+$42,569.73+$20,068.58+$40,065.99=$120,704.30
    7. Find what it's worth in today's dollars by dividing out the price rises over the same years

      $120,704.30(1+0.032)8=$93,817.78
    8. Estimate your first-year retirement income by taking out 4% of the balance in today's dollars

      $93,817.78×4%=$3,752.71
    9. Divide that yearly income by 12 to see it as a monthly amount

      $3,752.7112=$312.73