Direct fees and their effect on future growth
The balance difference combines fees and the growth that money could otherwise have earned. Cumulative fees charged show only direct deductions. A negative difference means option B finishes with the larger balance under the selected assumptions. Balance reduction for each option is its no-fee baseline minus its final balance. These amounts include the modeled future effect of removing fees; direct fees remain separate.
For a broader contribution and inflation scenario without comparing two fee schedules, use the Investment Growth Calculator with a return assumption that reflects the costs you intend to include.
The formula
The fee is applied once per year to the balance after gross growth. New annual contributions arrive after that fee and begin earning the following year. Both options start with the same capital, contributions, and gross return so the comparison isolates the entered fees. In year-start mode, each contribution earns that year’s growth and is included in the fee base. Both fee options and the no-fee baseline use the same selected timing.
A one-year fee comparison
Start with 1,000, earn 10% before fees, and add 100 at year-end. A 1% fee deducts 11 from 1,100 and leaves 1,189 after the contribution. A 2% fee deducts 22 and leaves 1,178, a difference of 11.
How to use this calculator
- Enter starting capital and the annual contribution, then choose when that contribution arrives.
- Enter a gross return before the two fees and each annual fee rate.
- Read the live final balances, signed A-minus-B gap and reduction against the no-fee balance. The annual table separates this year’s charges from cumulative fees.
Avoid deducting the same expense twice
A published fund return may already reflect operating expenses. Subtracting an expense ratio again from a net return would overstate the impact. Use a gross assumption for this controlled comparison, or confirm which costs are already reflected in your starting return figure.
Actual funds can accrue charges daily, use different fee bases, apply tiered schedules, or charge transaction and advisory fees separately. This annual model describes one transparent convention. It does not establish that two real investments will have the same performance or risk before fees.
Compare contribution timing and total balance reduction
With 1,000 initial capital, a 100 contribution, 10% gross return and a 1% fee for one year, a year-end contribution gives 1,189. At year-start, 1,100 earns growth to 1,210, the fee is 12.10 and the ending balance is 1,197.90. The no-fee balance uses the same timing, so year-start is 1,210 and year-end is 1,200.
Direct charges and total balance reduction answer different questions. Over two years with no contributions, 1,000 initial capital, 10% gross growth and a 1% annual fee, direct fees total 22.979 while the no-fee balance exceeds the after-fee balance by 24.079. Positive returns can make the reduction exceed direct charges; negative returns can make it smaller, because removed money also avoids later modeled losses. Neither comparison measures the quality of a real investment.
Assumptions & limitations
What this calculation assumes
- Asset-based fees are charged annually after growth.
- Annual contributions arrive at the selected year-start or year-end; year-end is the default.
- Gross return is identical for both options.
What to keep in mind
- Taxes, transaction costs, performance fees, and fee tiers are excluded.
- The comparison does not evaluate investment quality, risk, or suitability.
Common questions
Why can the balance gap exceed the fees paid?
Money removed as a fee cannot earn subsequent returns. At positive returns, that lost compounding can make the final gap larger than direct charges.
Can option A cost more?
Yes. The labels do not imply a preferred option. A higher fee for A can produce a negative A-minus-B balance difference.
Are year-start contributions charged a fee in that year?
Yes. They enter before gross growth and the annual fee. Year-end contributions enter after both. The same convention applies to option A, option B and the no-fee baseline.
Sources & further reading
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