Broker Costs That Quietly Kill Returns (Spread, FX, Custody, TER)

Many investors focus only on market return. But net return = market return minus all costs. Small costs repeated for years can become a large loss.

1) Spread cost

Spread is the difference between buy and sell price. Wide spreads can quietly reduce your result, especially with frequent trading.

2) FX conversion cost

If your base currency and trading currency differ, FX conversion fees apply. Repeating this monthly can add up fast.

3) Custody/platform fees

Some brokers charge ongoing account or custody fees. Always check recurring charges, not only trade commission.

4) Commission per transaction

Small commission can still become meaningful if you trade often. Simpler investing schedules can reduce this drag.

5) TER + broker costs together

ETF TER is inside product return. Broker costs are on top. You must evaluate both together, not separately.

Practical anti-cost checklist

• Check TER before buy
• Check spread during active market hours
• Check FX conversion model
• Check custody/account recurring fees
• Estimate yearly total cost before investing

Bottom line

You cannot control markets. You can control costs. Cost discipline is one of the easiest long-term advantages.

Related: TER Impact Tool · Commission Calculator · Broker Comparison

Educational content only. Not financial advice.