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What a 1% fee really costs over 30 years

Portfolio Calculate · July 2026 · 4 min read

Expense ratios look like rounding errors. One percent — who cares? Compounding cares. A fee is subtracted every single year from a base that should have been growing, so the damage compounds exactly like returns do, in reverse.

The same plan, two fees

Take $10,000 plus $500/month for 30 years, growing at 7% with a 2% dividend yield reinvested. We ran it through our projection engine twice:

Annual feeEnd valuePaid to fees (lost growth incl.)
0.03% (broad index ETF)$1,010,797
1.00% (typical active fund)$817,896$192,901

Same contributions, same market. The 1% fee consumed 19% of the final wealth — nearly two hundred thousand dollars, or about six years of those $500 contributions, transferred quietly at 1% a year.

Why it feels invisible

You never write a check. The fee is deducted inside the fund's price, so your statement simply grows a little slower — there's no line item to get angry at. That's why the only defense is checking the number before you buy: it's disclosed on every fund's page as the expense ratio.

The portfolio dashboard at portfoliocalculate.com shows your weighted expense ratio across ~38 popular funds automatically (individual stocks cost 0%), and the projection panel includes the fee drag in its math.

What's worth paying for

Fees aren't evil — they're a price, and prices should buy something. Broad market exposure now costs 0.02–0.09%, so anything above that needs a reason: a strategy you genuinely can't replicate, or one that keeps you invested when you'd otherwise panic. "It did well recently" is not a reason; that's usually how the 19% gets taken.

See your portfolio's expense ratio →
Disclaimer: Educational content, not financial advice. All figures computed with the Portfolio Calculate backtest engine from historical market data (via Yahoo Finance); past performance does not guarantee future results.