Every forex trade carries a cost, even when a platform advertises zero commission. Understanding those charges is essential, because they accumulate quietly over dozens or hundreds of trades. This guide breaks down the main fees in forex trading and how they are applied.
The spread: the cost built into every quote
Each currency pair has two prices. The bid is what you receive when selling, and the ask is what you pay when buying. The difference between them is the spread, measured in pips.
On a major pair such as EUR/USD, a pip is usually the fourth decimal place. For yen pairs it is the second decimal place. If EUR/USD is quoted at 1.1358 bid and 1.1360 ask, the spread is two pips. A new position starts slightly negative because it must recover that gap.
Spreads in the forex market are rarely fixed. They tend to be tightest when liquidity is deep, such as during the overlap of the London and New York sessions. They often widen around major data releases, rate decisions and late Friday trading. Exotic and minor pairs generally carry wider spreads than majors.
Commissions and account models
Forex brokers typically use one of two pricing approaches. Some offer commission-free accounts with a wider spread, earning their revenue from the markup. Others pass through raw interbank-style spreads and charge a separate commission per lot traded.
The difference often aligns with execution models. ECN and STP brokers route orders to external liquidity providers, so a visible commission is common. Market makers may take the other side of client trades and usually price through the spread. Neither model is inherently better. What matters is the all-in cost for your style of forex trading and the transparency of execution.
To compare offers fairly, convert everything into a cost per standard lot. Add the typical spread in pips, converted to currency, to any round-turn commission. That total shows what a trade actually costs to open and close. Fintech comparison tools and in-app cost calculators make this arithmetic easier.
Swaps: the cost of holding overnight
Positions kept open past the daily rollover incur a swap, also called overnight financing. It reflects the interest rate differential between the two currencies, plus a broker markup. Depending on direction and rates, a swap can be a charge or occasionally a small credit.
Rate gaps matter more when central banks diverge. MUFG data for end-September 2026 put the Fed's range at 3.75–4.00% and the BoJ at 1.25%. That gap feeds directly into financing on dollar-yen positions held for days or weeks. Many platforms apply a triple swap on one weekday to cover the weekend.
Other fees in the forex market
Beyond trading costs, check for:
• Deposit and withdrawal charges, including currency conversion fees.
• Inactivity fees on dormant accounts.
• Slippage, when orders fill at a worse price than requested.
Fintech has improved fee transparency in some respects. Many apps now display estimated costs before an order is confirmed. Yet headline pricing can still hide details in the small print. Regulated forex brokers in the EU must provide cost disclosures, and these documents are worth reading carefully.
Reducing costs will not by itself make forex trading profitable. It simply removes one avoidable drag on results.
Low fees do not offset market risk, and with leverage, losses can mount far faster than a trader anticipates.