Hidden Forex Trading Fees: What Brokers Don't Tell You

Spreads and commissions are the obvious costs. But forex trading has several other fees that brokers don't always advertise prominently. Some of these can significantly eat into your returns if you're not aware of them.

This guide breaks down every fee type you should know about, with real numbers from the brokers in our review.

1. Swap Rates (Overnight Financing)

If you hold a position past 5pm New York time, you pay or receive a swap rate. This is the cost of financing the position overnight. On Wednesday, the swap is tripled (to cover the weekend).

Swap rates vary between brokers, even on the same currency pair. The difference can be significant for swing traders who hold positions for days or weeks.

How to avoid it: Some brokers offer swap-free Islamic accounts. IC Markets, Exness, XM, and most others in our review offer this option. If you close all positions before 5pm New York time each day, you avoid swaps entirely.

2. Inactivity Fees

This is the fee that catches people off guard. Stop trading for a few months, and some brokers will charge you monthly for the privilege of having an empty account.

| Broker | Inactivity Fee | Starts After | |--------|---------------|-------------| | AvaTrade | $50/month + $100 admin | 3 months | | XM | $15/month | 90 days | | ThinkMarkets | $30/month | 6 months | | FxPro | $15/month | 6 months | | FOREX.com | $15/month | 12 months | | OANDA | $10/month | 12 months | | eToro | $10/month | 12 months | | XTB | EUR 10/month | 12 months | | IG | $12/month | 24 months | | Pepperstone | None | N/A | | IC Markets | None | N/A | | FP Markets | None | N/A | | Tickmill | None | N/A | | Exness | None | N/A | | CMC Markets | GBP 10/month | 12 months |

AvaTrade's fee is the most aggressive: $50 after just 3 months. If you're a casual trader who takes breaks, choose a broker with no inactivity fee.

3. Currency Conversion Fees

If you deposit in a currency that doesn't match your account's base currency, the broker will convert it and typically charge a conversion fee.

eToro is notable here: it only supports USD as a base currency, so every non-USD deposit incurs a conversion fee of approximately 50 basis points (0.50%). On a $10,000 deposit in EUR, that's roughly $50.

How to minimise: Choose a broker that supports your local currency as a base currency. IC Markets supports 10 base currencies, XM supports 11.

4. Withdrawal Fees

Most brokers in our review offer free withdrawals, but there are exceptions:

eToro: $5 per withdrawal
IC Markets: First withdrawal per month is free; subsequent withdrawals may incur fees
Bank transfer fees: Even "free" withdrawals can incur fees from the receiving bank

5. Spread Markup

On standard accounts, the broker adds a markup to the raw interbank spread. This markup is essentially an invisible commission. It's not listed as a separate fee, which is why many traders don't notice it.

A standard account spread of 1.00 pips on EUR/USD might include a 0.7-0.8 pip broker markup on top of a 0.2-0.3 pip raw spread. You'd pay less on a raw spread account with explicit commission.

6. Slippage

Slippage isn't technically a fee, but it's a real cost. It occurs when your order is filled at a different price than requested. This happens during volatility, low liquidity, or if your broker has slow execution.

Slippage can be positive (better fill) or negative (worse fill), but negative slippage is more common in practice.

ECN brokers with fast execution tend to have less slippage. IC Markets, Pepperstone, and Tickmill are known for low slippage.

7. Platform or Data Fees

Some brokers charge for premium data feeds, advanced charting, or API access. This is rare among retail forex brokers but worth checking.

Calculating Your True Trading Cost

To know what you're really paying, add up:

Spread (raw or marked-up)
Commission (if applicable)
Swap (if holding overnight)
Expected slippage
Any inactivity/conversion/withdrawal fees

For a trader making 100 trades per month at 1 lot on EUR/USD:

At IC Markets (Raw cTrader): 0.10 pips spread + $6 commission = ~$70 per month in spread/commission
At OANDA (Standard): 1.40 pips spread + $0 commission = ~$1,400 per month in spread

That's a $1,330/month difference for the same trading activity. Broker choice matters.

Key Takeaways

Spreads and commissions are only part of the cost
Inactivity fees can drain dormant accounts quickly
Currency conversion fees hit non-USD traders at some brokers
Calculate your total cost based on your trading frequency and style
Brokers with transparent, low-fee structures (IC Markets, Pepperstone, Tickmill) tend to be cheaper overall

See our low spread broker rankings for the cheapest brokers by total trading cost. For spread basics, read Understanding Forex Spreads.

Written by Neil C, BrokerAudit. Read our methodology.