It depends on your country of residence and on the CFD asset group that you wish to trade. On the EU platform of Plus500, you need 5% margin to trade gold, 10% on commodities, 20% on major equities and 50% on cryptocurrencies. So if a Gold position costs $3000 to setup, you would need at least $150 to initiate the trade. But, if you are not from ESMA jurisdiction and on the global site of Plus500, you need a margin of 0.667%. This means that you only need $20 to start the trade.