Six hidden costs in forex trading

Spread and commission are the two everyone knows. But your account is also debited in at least
four other places the fee schedule does not advertise. Added up, they usually exceed the part you
are watching.

1. Overnight financing (swap)

Calculated from the interest-rate differential
between the two currencies, plus the broker’s share. On gold and many
crosses,
swap is negative in both directions — the longer you
hold, the more it costs, whether you are long or short.

And every Wednesday night is charged three times, covering the weekend under the
T+2 settlement rule.

2. Slippage

The fill differs from the price you saw. It is not on the fee schedule, cannot be predicted, and
is worst on a stop loss — where it makes the real loss bigger than the number you calculated.

3. Currency conversion on deposits and withdrawals

This one is specific to traders outside the dollar zone. The account is denominated in dollars
while your money is not, so every deposit and withdrawal carries a
conversion plus a transfer fee. For anyone
moving money often, this is a substantial fixed
cost.

4. Inactivity fees

Many brokers charge a monthly amount once an account has gone without a trade for a set period,
usually 3–12 months. A forgotten account can be worn away without its owner noticing.

5. Spread widening outside liquid hours

The average cost you measured during London does not apply to the early Asian session or a
changeover. The same trade on the same instrument can cost several times more purely because of when
you clicked.

6. The opportunity cost of locked margin

Margin held against a position is money earning nothing and unavailable for anything else. For
anyone holding several positions for days, that is a real cost even though nobody invoices for it.

How to control them

• Close within the day where the strategy allows — this removes swap entirely.
• Trade during liquid hours — cuts both spread and slippage.
• Deposit and withdraw in larger, less frequent amounts — fewer conversions.
• Record your real monthly cost rather than estimating it. The number is usually
  a surprise.

And for the part you cannot avoid, a rebate returns a share of it on every lot you close —
regardless of whether the trade won or lost.

This article is for information only and is not investment advice. Conditions and fee levels are published by the brokers and can change at any time — check with the broker you actually use. Leveraged forex and CFD trading carries a high level of risk and can cost you your entire deposit.