The initial margin is the minimum amount you’ll need to put up to open a position.
It is sometimes called the required margin, entry margin, deposit margin, or just the deposit.
Initial margin can be thought of as a good faith deposit or collateral that’s needed to open a position.
Margin is NOT a fee or a transaction cost.
Margin is simply a portion of your funds that your forex broker sets aside from your account balance to keep your trade open and to ensure that you can cover the potential loss of the trade.
This portion is “used” or “locked up” for the duration of the specific trade.
Once the trade is closed, the margin is “freed” or “released” back into your account and can now be “usable” again… to open new trades.