Plus500 makes most of its money from spreads (i.e. the difference between a bid price and an ask price). In some circumstances, you can be also charged with a night premium, which is a fee that is deducted from your account balance when you remain in a position after the market has closed.
Overnight funding can also be positive, in such a situation the amount is added to your balance. Plus500 has 0 commissions policy and does not impose fees on deposits nor withdrawals.
Plus500 spreads differ from instrument to instrument but taking all into account we are not afraid to say that Plus500 has one of the most competitive spreads in the industry. These numbers back up this bold statement themselves.