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Fee Drag Calculator: How Much Does a 1% Advisory Fee Cost?

A 1% fee sounds small. Over decades it compounds into a large share of your ending balance. The formula, a table for $250,000, $500,000 and $1 million, and how to check what the fee is buying.

Reviewed by:Published Updated 4 min readHow we research

Key takeaways

  • Illustrative: at 7% a year before fees, a 1% annual fee leaves $500,000 at about $1.60 million after 20 years instead of $1.93 million: about $331,000 less, or 17% of the ending balance.
  • Over 30 years the same fee takes about a quarter (24.5%) of the ending balance, whatever the starting amount.
  • Formula: ending value = start × (1 + return − fee)^years. Run it with and without the fee and subtract.
  • The fee is worth it only if the advice adds more than it costs. A risk-matched benchmark is one way to check.
In this article
  1. How much does a 1% advisory fee cost over time?
  2. How to calculate fee drag yourself
  3. What about 0.25%, 0.5% or 1.5%?
  4. What the calculator leaves out
  5. How do I know if the fee is worth it?

How much does a 1% advisory fee cost over time?

The fee is charged on your whole balance every year, so it also removes the growth that money would have earned. Illustrative table: a lump sum growing 7% a year before fees, compared with 6% after a 1% fee. No deposits, withdrawals or taxes.

Starting amountYearsNo fee (7%)With 1% fee (6%)Cost of the feeShare of ending balance
$250,00010$491,788$447,712$44,0769.0%
$250,00020$967,421$801,784$165,63717.1%
$250,00030$1,903,064$1,435,873$467,19124.5%
$500,00010$983,576$895,424$88,1529.0%
$500,00020$1,934,842$1,603,568$331,27417.1%
$500,00030$3,806,128$2,871,746$934,38224.5%
$1,000,00010$1,967,151$1,790,848$176,3049.0%
$1,000,00020$3,869,684$3,207,135$662,54917.1%
$1,000,00030$7,612,255$5,743,491$1,868,76424.5%
  • $250,000
    Years
    10
    No fee (7%)
    $491,788
    With 1% fee (6%)
    $447,712
    Cost of the fee
    $44,076
    Share of ending balance
    9.0%
  • $250,000
    Years
    20
    No fee (7%)
    $967,421
    With 1% fee (6%)
    $801,784
    Cost of the fee
    $165,637
    Share of ending balance
    17.1%
  • $250,000
    Years
    30
    No fee (7%)
    $1,903,064
    With 1% fee (6%)
    $1,435,873
    Cost of the fee
    $467,191
    Share of ending balance
    24.5%
  • $500,000
    Years
    10
    No fee (7%)
    $983,576
    With 1% fee (6%)
    $895,424
    Cost of the fee
    $88,152
    Share of ending balance
    9.0%
  • $500,000
    Years
    20
    No fee (7%)
    $1,934,842
    With 1% fee (6%)
    $1,603,568
    Cost of the fee
    $331,274
    Share of ending balance
    17.1%
  • $500,000
    Years
    30
    No fee (7%)
    $3,806,128
    With 1% fee (6%)
    $2,871,746
    Cost of the fee
    $934,382
    Share of ending balance
    24.5%
  • $1,000,000
    Years
    10
    No fee (7%)
    $1,967,151
    With 1% fee (6%)
    $1,790,848
    Cost of the fee
    $176,304
    Share of ending balance
    9.0%
  • $1,000,000
    Years
    20
    No fee (7%)
    $3,869,684
    With 1% fee (6%)
    $3,207,135
    Cost of the fee
    $662,549
    Share of ending balance
    17.1%
  • $1,000,000
    Years
    30
    No fee (7%)
    $7,612,255
    With 1% fee (6%)
    $5,743,491
    Cost of the fee
    $1,868,764
    Share of ending balance
    24.5%

Illustrative only: 7% is an assumption for the arithmetic, not a forecast of any market or portfolio.

How to calculate fee drag yourself

  1. Pick a gross return you want to test, before any fees.
  2. Grow the balance without the fee: start × (1 + return)^years.
  3. Grow it with the fee: start × (1 + return − fee)^years.
  4. Subtract. The difference is the fee drag: fees paid plus the growth those fees would have earned.
  5. Divide by the no‑fee ending value to see what share of your money the fee takes.

The share depends on the fee, the return and the years, not on the amount. That is why every starting amount in the table loses the same 17.1% over 20 years. The U.S. Securities and Exchange Commission makes the same point with a $100,000 example in its investor bulletin How Fees and Expenses Affect Your Investment Portfolio.

What about 0.25%, 0.5% or 1.5%?

Illustrative: $500,000 over 20 years at 7% a year before fees.

Annual feeEnding valueCost versus no fee
None$1,934,842$0
0.25%$1,846,408$88,434
0.50%$1,761,823$173,020
1.00%$1,603,568$331,274
1.50%$1,458,879$475,963

What the calculator leaves out

  • Fund costs come on top: the expense ratios of the funds inside the account are charged separately from the advisory fee.
  • If your fee schedule is tiered, the rate may fall as the balance grows.
  • Regular deposits or withdrawals change the dollar figures, but not the basic effect.
  • Taxes, trading costs and cash drag are not included.
  • Advice can add value the formula ignores: planning, tax work, and keeping you invested in a crash.

How do I know if the fee is worth it?

Ask what you get for it, then check the investment part with numbers. A portfolio managed for a 1% fee has to earn its keep against a passive alternative with the same risk, not against a savings account. Exent’s Portfolio Analysis compares a portfolio with a risk‑matched benchmark, a passive mix with the same risk, and shows whether the returns justify the risk taken. You can run it on an advisor‑managed account from a screenshot.

For the wider decision, see how to evaluate a financial advisor, flat‑fee vs AUM advisors and Exent vs a financial advisor.

Frequently asked questions

In an illustrative case with 7% annual returns before fees, a 1% fee takes about 9% of the ending balance after 10 years, 17% after 20 years and about 25% after 30 years.

About $10,000 in the first year. Illustratively, at 7% a year before fees, the gap grows to about $663,000 after 20 years once lost growth is counted.

Usually not. The funds held in the account charge their own expense ratios, and there can be trading costs and taxes on top.

It depends on what the advice adds. If the investment part only matches a passive mix with the same risk, the fee is paying for other services such as planning, which may or may not be worth it to you.

See what your portfolio is really made of.

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Educational content, not investment advice. Examples are illustrative; past performance does not guarantee future results.

DISCLAIMER: Exent AI is an informational research platform and does not provide investment advice, financial advice, or act as an investment adviser, broker-dealer, or fiduciary. All content, analytics, and model outputs are provided for educational and informational purposes only and should not be relied upon as a recommendation to buy, sell, or hold any financial instrument. Investing involves risk, including the possible loss of principal. Exent AI does not execute trades, hold customer funds, or provide brokerage services. Past performance and hypothetical results are not indicative of future results. Third-party data and AI-generated outputs may be incomplete or inaccurate.