Is Forex Halal In Islam Forex Trading – Halal or Haram Fatwa. Usury is of course completely prohibited in Islam, and is defined very widely However, “regular” spot Forex trading offered by Forex brokers, with no overnight interest payments or charges, could clear the hurdle of riba Sign Up For Forex Islamic Accounts Definitions of riba include: Unjustified increment in borrowing or lending money, paid in kind or in money above the amount of loan, as a condition imposed by the lender or voluntarily by the borrower. Riba defined in this way is called in fiqh riba al-duyun (debt usury).