FinToolSuite

Investment Return After Fees Calculator

Updated April 17, 2026 · Investing · Educational use only ·

Net return after fees eat into gross return.

Calculate net investment return after fund fees, platform fees, and other charges. Enter gross return and principal to see net return and fee drag.

What this tool does

Enter gross return and total fee percentage. The tool shows net return and fee drag.


Enter Values

Formula Used
Before fees
Total fees

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Disclaimer

Results are estimates for educational purposes only. They do not constitute financial advice. Consult a qualified professional before making financial decisions.

7% gross return minus 1.5% total fees = 5.5% net. Over 30 years on 100,000: gross 761,000; net 498,000. Fees eat 263,000 — 35% of the gross outcome. Small-sounding fees compound into large long-term costs.

Run it with sensible defaults

Using gross return of 7%, total fee of 1.5%, principal of 100,000, years of 30, the calculation works out to 5.50%. Nudge the inputs toward your own situation and the output recalculates instantly. The defaults are meant as a starting point, not a recommendation.

The levers in this calculation

The inputs — Gross Return %, Total Fee %, Principal, and Years — do not pull with equal force. The rate and the time horizon usually dominate — compounding means a small change in either reshapes the final figure more than a similar shift in contribution size. Test this by doubling one input at a time.

How the math works

Simple subtraction of fees from gross return. Future values computed on both for comparison. The working is transparent — you can verify every step yourself in the formula section below. No black box, no opaque "proprietary model".

Why investors run this

Most people's intuition for compounding is wrong — not because the math is hard, but because linear thinking doesn't account for curves. Running numbers through a calculator like this one is the cheapest way to recalibrate that intuition before making an irreversible decision about contribution rate, asset mix, or retirement age.

What this doesn't capture

Steady-rate math ignores real-world volatility. Actual returns are lumpy; sequence-of-returns risk matters most in drawdown; fees and taxes drag on compound growth; and behaviour changes in drawdowns can reduce outcomes below the projection. Treat the number as one scenario, not a forecast.

Example Scenario

Net return after fees produces a figure based on the inputs provided.

Inputs

Gross Return %:7
Total Fee %:1.5
Principal:100,000 £
Years:30
Expected Result5.50%

This example uses typical values for illustration. Adjust the inputs above to match a specific situation and see how the result changes.

Sources & Methodology

Methodology

Simple subtraction of fees from gross return. Future values computed on both for comparison.

Frequently Asked Questions

Typical fee drag?
Active funds 1-2%. Index funds 0.05-0.25%. Platform fees 0.15-0.45%. Total often 1-2% for active, under 0.5% for passive.
Why do small fees matter?
Compound. 1% fee over 30 years reduces final value by roughly 25-30%. Tiny annual, huge cumulative.
How to minimise?
Passive index funds, low-cost platforms, direct investing where possible. Easy to cut to 0.3% total.
What's not in gross return?
Taxes. This is pre-tax. Tax-advantaged accounts keep more of gross return.

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