Investing term
What is Fee drag?
The cumulative effect of every fee you pay on the return you actually keep.
Fee drag is the compounding cost of every fee you pay — expense ratios, platform charges, commissions, currency markups — on the wealth you actually keep. Any single fee can look tiny, but they stack, and each one comes out year after year.
The damage is far larger than the headline percentages suggest, because the money taken in fees can no longer compound for you. A pound lost to fees this year isn't just gone — so is every pound of growth it would have produced over the following decades. That's why cutting fees is one of the surest ways to boost your net return: unlike market performance, it's a guaranteed improvement entirely within your control.
A 0.6% fund fee, 0.3% platform fee, and 0.2% currency markup total 1.1% a year — and that total compounds against you. Add every fee up rather than judging each alone.
For example
A 0.6% fund fee, a 0.3% platform fee, and a 0.2% currency markup total 1.1% a year — small-sounding parts that, compounded over decades, quietly consume a large slice of returns.
Learn it by doing
That's Fee drag in theory — it clicks when you use it. Practise it hands-on in a free, interactive lesson (Stage 9, Fees, Scams & Protecting Your Money).
Try the free lesson →Why it matters to you
Fee drag matters because it reframes fees from a minor annoyance into one of the biggest, most controllable determinants of long-run wealth. Since fees compound against you exactly as returns compound for you, even a one-percent difference can consume a huge share of your final portfolio over a lifetime. Adding up all your fees — not just the headline expense ratio — and minimising them is close to a guaranteed return upgrade.
⚠ Judging fees one at a time
Each fee viewed alone — a fund's 0.6%, a platform's 0.3%, an FX markup — sounds negligible, so investors wave them through. But they stack into a total annual drag, and that total compounds over decades into a large loss. Add up every fee you pay together, and judge the combined drag, not each small percentage in isolation.