Fee test
Keep returns equal and change annual fees.
Investment Return and Fee Comparison Calculator
Compare two investment return and fee scenarios to see how contributions, assumed returns and annual costs can affect long-term outcomes.
Investment scenario comparison
Both paths use the same starting cash, contributions and time so the changed assumption stays visible.
Enter your figures, then press “Compare the two paths” to calculate your result.
No result yetComplete the fields and use the calculation button.
What the investment comparison calculator shows
This calculator compares two hypothetical investment paths using the same starting amount, monthly contribution and time period. Each scenario has its own assumed annual return and fee, making the long-term dollar effect of different assumptions visible.
- Returns are hypothetical and constant for illustration.
- Real markets fluctuate and can lose value.
- Taxes, trading costs and inflation are not included.
Make the comparison answer one question
A useful test isolates fees or return assumptions. Changing every field produces a dramatic gap but a weak explanation.
Return test
Keep fees equal and change assumed returns.
Role test
Compare only products that could do the same portfolio job.
How returns and fees are modeled
For each scenario, the calculator subtracts the annual fee from the assumed annual return, divides that net rate into monthly periods and compounds the balance while adding the same monthly contribution. It reports both ending values, total money contributed and the estimated difference between scenarios.
The model uses a smooth constant return. Real investments move unevenly, can lose value and may produce a different result because of return sequence, taxes, trading spreads or contribution timing. The output is a sensitivity test, not a forecast or performance promise.
Isolate one difference at a time
To examine fees, give both scenarios the same return and change only the fee. To examine a return assumption, keep fees equal. Changing both at once may create a large ending-value gap without showing which assumption caused it.
Compare only investments that could fill the same portfolio role. A concentrated growth fund and a diversified bond fund should not be judged by the higher modeled ending value because they do not carry the same risk or serve the same goal.
- Match the time horizon and contribution schedule
- Verify current fees from official documents
- Compare holdings, benchmark and concentration before comparing performance
Use conservative scenarios for decisions
Run a base case and a lower-return case. If a goal works only under the most optimistic input, increase contributions, extend the horizon or reconsider the target. For money needed on a fixed near-term date, a projected average return does not remove the risk of loss when the money must be withdrawn.
Common questions about this calculator
Does the higher projected balance identify the better investment?
No. A projection does not measure concentration, volatility, taxes, liquidity or whether the investment fits the goal. It isolates the assumptions entered.
Why compare fees with the same return assumption?
Holding the return constant makes the fee effect visible. Changing both return and fees at once makes it harder to explain why the outcomes differ.