Example Scenarios

Three contribution paths, run under the same assumptions

Every scenario below starts from a $65,000 salary and assumes a constant 6% annual return over the whole period, with no fees and no taxes. Only the starting age and the contribution rate change. Run your own numbers in the planner.

Scenario A

Start at 30, contribute 6%

The baseline path: 6% of pay, deposited every year for 35 years.

Annual contribution
$3,900
Time horizon
35 years
Total contributed
$136,500
Balance at 65
$434,700
Growth component
$298,200
Return assumption
6.0%

Roughly two thirds of the ending balance comes from compounding rather than from the deposits themselves.

Scenario B

Start at 30, contribute 8%

Same start date, two extra percentage points of pay each year.

Annual contribution
$5,200
Time horizon
35 years
Total contributed
$182,000
Balance at 65
$579,500
Growth component
$397,500
Gain vs Scenario A
+$144,800

Raising the rate costs $1,300 more per year and adds $144,800 by age 65.

Scenario C

Start at 25, contribute 6%

The baseline rate, moved five years earlier on the calendar.

Annual contribution
$3,900
Time horizon
40 years
Total contributed
$156,000
Balance at 65
$602,900
Growth component
$446,900
Gain vs Scenario A
+$168,200

Five extra years at the same contribution rate outpace the higher rate in Scenario B.

Figures are illustrative, rounded to the nearest $100, and assume deposits at year end. Constant return, no taxes, no fees. This is educational material, not financial advice. See the side-by-side comparison.

Side-by-side comparison

Three contribution paths across one 25-year horizon

Every column describes the same saver: age 42, an $85,000 starting balance, and a constant 6% annual return. Only the contribution rate changes.

Salary $72,000. Contributions stay flat in nominal dollars, with no taxes and no fees modeled.

See the full example scenarios Test your own contribution rate

Projected balance at age 67 by contribution rate.
Measure Current path (6%) Plus 1 point (7%) Plus 2 points (8%) Delta vs. current
Annual contribution $4,320 $5,040 $5,760 +$1,440
Monthly contribution $360 $420 $480 +$120
Contributed over 25 years $108,000 $126,000 $144,000 +$36,000
Projected balance at 67 $614,300 $655,900 $697,500 +$83,200

The delta column compares the +2 point path against the current path. One extra percentage point of salary moves the projected balance by about $41,600 over the horizon. These figures are an educational illustration, not financial advice; the full method is explained in the assumptions detail.

Case Notes

What the example scenarios suggest in practice

Five notes drawn from the numbers on this page. Each is a reading of the scenario comparison table, not a recommendation.

Every figure uses a constant annual return of 6%, no taxes and no fees. Change any input in the Planner and the same patterns hold, only the magnitudes move.

  1. Time horizon outweighs the rate

    Stretching a 10 year horizon to 25 years moved the ending balance further than a one point rate increase in every pair we ran. Starting earlier is the largest single lever shown here.

  2. One percentage point is not small

    Adding a single point of contribution at age 34 produced a six-figure difference by age 65 in the examples. Rate changes compound the same way balances do.

  3. A raise is the cheapest moment to adjust

    Scenarios that lift contribution alongside income growth keep take-home pay nearly flat, which is why the increase feels smaller than the ledger suggests.

  4. Short horizons need lower targets

    With 8 years left, no realistic contribution rate closed the gap in scenario C. In that case the target balance, not the rate, is the variable worth revisiting.

  5. Assumptions carry the whole result

    Constant return, no fees and unchanged employer match make the lines straight. Real accounts do not behave that way, so treat the shapes as the lesson and the totals as illustrations.

This page is educational only and does not provide financial advice. Figures depend on the assumptions you enter and do not project your actual retirement savings plan.