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Spreads, Swaps and Commissions: The Real Cost of Trading

Understand every fee a broker can charge and how to compare accounts on the all-in cost per trade.

The spread

The difference between the bid (sell) and ask (buy) price. You start every trade slightly in loss by the spread. On EUR/USD a 0.8 pip spread on a standard lot costs about $8.

Commission

ECN-style accounts charge a commission per lot, often $3-$7 per side, with raw spreads close to zero. Add the commission to the spread to get the true cost per round trip.

Swap (overnight financing)

Holding a position past the daily rollover earns or pays an interest difference between the two currencies. Swaps can be positive or negative and are charged three times on one day of the week to cover the weekend. Long-term holders should check swap rates before entering.

Hidden costs

Withdrawal fees, currency conversion fees, inactivity fees and slippage in fast markets all add up. Run a one-week test on a small account and compare what you actually paid with the advertised numbers.

Example: the real cost of a trade

You trade 1 lot of EUR/USD on an account with a 0.4 pip spread and a $7 round-turn commission. The spread costs about $4 and the commission $7, so the trade costs $11 before you move a pip.

If your average win is 15 pips ($150) the cost is small. If you scalp for 3 pips ($30), the same $11 eats over a third of your profit.

Reducing costs

Trade the most liquid pairs and sessions, avoid placing orders during news when spreads widen, use limit orders where it makes sense, choose the account type that fits your volume and check whether your broker charges for withdrawals. Over a year, reducing cost by a pip on every trade can add up to a surprising amount.

Key takeaways

• Total cost = spread + commission + swap.
• Raw-spread accounts are not automatically cheaper.
• Check swaps for multi-day trades.
• Test real costs on a small account.

Related

• Compare broker costs

Educational content, not financial advice.