XTB does not determine the amount of the minimum initial deposit. In practice, this means that you can open a real account and start trading from any deposit.
The only limitation will be the minimum transaction volume and the resulting minimum margin deposit.
You can add funds through xStation or your Client Office via a number of methods, including credit card, debit card, Neteller, Paysafe (formerly Skrill), or bank transfer.
For more information on how to fund your account, please see our funding page.