Most forex currency pairs are traded without commission, but the spread is one cost that applies to any trade that you place. Rather than charging a commission, all leveraged trading providers will incorporate a spread into the cost of placing a trade, as they factor in a higher ask price relative to the bid price. The size of the spread can be influenced by different factors, such as which currency pair you are trading and how volatile it is, the size of your trade and which provider you are using.
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