Make every day count Free money tools for every American household
--:-- …--°

Investment fee calculator

A fee of 1% a year sounds small, but it is taken every year from your whole balance. Compare the same investment with two fee levels, such as two funds' expense ratios or a fund with and without an advisory fee, and see the difference over 10 to 30 years.

Your investment

The return is an example, not a forecast: real returns change from year to year and can be negative. Fees include a fund's expense ratio plus any advisory or account fee charged as a percent of your balance; find them in the fund's prospectus and your account agreement.

Difference at the end

–
With option A fees
With option B fees
Total you put in
Cost of option A fees vs no fees
Cost of option B fees vs no fees

An illustration with a steady return; taxes, trading costs and inflation are not included.

Why small fees matter

Investment fees are usually quoted as a percent of your balance each year, so they are charged on everything you have invested, every year, including past growth. The Financial Industry Regulatory Authority (FINRA) notes that a small percentage difference in fees can eat away a big chunk of your overall investment returns over time, citing an SEC illustration of a $100,000 investment earning 4% for 20 years (FINRA: Fees and Commissions). This calculator lets you see the effect with your own numbers.

Types of fees

FINRA also reminds investors that zero commissions do not mean zero fees.

How the calculator works

The return is your assumption, not a forecast. Real returns go up and down and can be negative.

An example

$10,000 invested now plus $300 a month for 30 years, at an assumed 6% yearly return before fees. With total fees of 0.1% a year, the balance would be about $354,109; with 1% a year, about $294,355. The difference is about $59,754, while you put in $118,000 in both cases. With $100,000 at 4% for 20 years and no contributions, fees of 0.25% versus 1% a year make a difference of about $29,377 with monthly compounding.

Where to find your fees

Frequently asked questions

How much does a 1% fee cost?

It depends on your balance, contributions, returns and time. In the example above, 1% instead of 0.1% a year costs about $59,754 over 30 years.

What is an expense ratio?

A fund's yearly operating expenses as a percent of the money invested in it. It is taken from the fund's assets, so you do not see it as a separate bill.

Does zero-commission trading mean no fees?

No. FINRA notes that zero commissions do not mean zero fees: funds still have expenses, and accounts may have other fees.

Is the return in the calculator a forecast?

No. It is an assumption you choose to show the effect of fees. Real returns change from year to year.

Is my information saved?

No. The numbers stay in your browser and are not sent to us.

How we calculate

The formula in plain words

Each month: balance × (1 + (return − yearly fees) ÷ 12) + monthly contribution, for the number of years. The difference = balance with option A fees − balance with option B fees; fee cost = balance with no fees − balance with the fees.

Assumptions and limits

Data and sources

Main sources: FINRA: Fees and commissions.

Methodology last reviewed: November 13, 2026. Methodology, rounding and corrections

Sources

The rates, limits and data on this page are based on these publications:

Markets & investing

Home & mortgage

Taxes & pay

Retirement & savings

Loans & debt

Money & business

Creators

Travel

Money games

Weather & time

Guides