Question 1

Why do investment fees matter so much over the long term?

Accepted Answer

Investment fees reduce your portfolio balance every year, and that reduction compounds over time. A 1.5% annual fee does not just cost you 1.5% of your starting balance — it reduces your portfolio each year, which means future returns are calculated on a smaller base. Over 20 or 30 years, this compounding effect means you may end up with significantly less than you would have with a lower-cost option, even if the underlying return assumptions are identical. This calculator shows the total impact of fees across your full investment horizon.

Question 2

What is a MER and how is it different from an annual fee?

Accepted Answer

MER stands for Management Expense Ratio. In Canada, MERs are the standard way mutual fund fees are expressed. In the USA, the equivalent is the expense ratio. Both represent the annual percentage of your investment that is charged to cover the fund's operating costs, management fees, and other expenses. The fee is not charged as a direct bill — it is deducted from the fund's assets continuously, which reduces the fund's reported return by that percentage each year. This calculator uses annual fee % to represent whichever fee structure applies to your investment.

Question 3

What is the difference between gross and net portfolio value?

Accepted Answer

Gross portfolio value is what your investment would be worth if no fees were deducted at all — it represents the full compound growth of your contributions at the stated return rate. Net portfolio value is what you actually keep after fees are deducted each year. The difference between gross and net is not just the sum of annual fee percentages applied to your contributions — it is larger, because the fees also reduce the base on which future returns compound. This "lost growth" effect is why the total impact of fees is greater than the raw fee percentage suggests.

Question 4

How is the expected annual return used in this calculator?

Accepted Answer

The expected annual return is treated as the gross return before fees — the return the underlying investments generate before any costs are deducted. The net return applied to your portfolio is this gross return minus the annual fee percentage. For example, if you enter 7% return and 1.5% fee, the calculator assumes your portfolio compounds at approximately 5.5% per year. This is a simplification: in practice, fees are deducted continuously from the fund's NAV, and actual market returns vary year to year. The calculator is designed to illustrate the structural impact of fees, not to predict future performance.

Question 5

What should I use as the Comparison Fee?

Accepted Answer

The comparison fee is a lower-cost alternative to benchmark against — it does not represent a specific fund or product recommendation. A common reference point is 0.20% as a proxy for the fee range of broad-market passive index funds in Canada and the USA, which typically run from 0.03% to 0.25% depending on the provider and asset class. You can enter any fee you are evaluating — for example, if you are comparing a 1.5% active fund with a 0.5% balanced ETF, set the comparison fee to 0.5%.

Question 6

Does this calculator account for taxes or inflation?

Accepted Answer

No. This calculator shows nominal portfolio growth before tax and before inflation adjustment. Taxes on investment income, capital gains distributions, and withdrawal taxation will vary significantly depending on your account type (RRSP, TFSA, 401(k), taxable brokerage), your tax residency, and your withdrawal strategy. Inflation will reduce the real purchasing power of the figures shown. These factors are intentionally excluded to keep the fee comparison clear and focused. For a full financial plan that accounts for taxes and inflation, consult a qualified financial advisor.

Question 7

What assumptions does this calculator make?

Accepted Answer

Four main assumptions: (1) the annual return and fee are constant throughout the investment horizon — actual market returns and fee structures may change over time; (2) monthly contributions are made consistently on the same date each month with no interruptions; (3) no taxes are deducted on growth during the accumulation period; and (4) fees reduce the effective annual return on a continuous basis, modeled here as a net annual compounding rate. Results are estimates intended for educational illustration only.

Variable	Meaning
FV	Future portfolio value
P	Initial investment (lump sum)
C	Monthly contribution
r	Monthly rate = (1 + net annual rate / 100)^(1/12) − 1
n	Total months = years invested × 12

Investment Fees Calculator

Portfolio Breakdown

Fee Impact Over Time

How It Works

The Future Value Formula

How Fees Reduce Net Return

How the Fee Drag Score Works

Assumptions

Frequently Asked Questions