Islamic spot currency exchange means swapping two different currencies at a freely agreed rate, with both amounts delivered immediately or within the market's customary settlement period, with no contractual deferral and no interest tied to the time gap.
What a traveller exchanges at the counter
At a bureau de change, the customer hands over 500 euros and immediately receives dirhams at the displayed rate: the exchange is simultaneous and the dealer's margin is built into the rate. This is the simplest compliant transaction, because nothing is deferred.
Paying by card outside the eurozone
With a card, conversion happens when the network processes the transaction, sometimes one or two days after the purchase. Many boards treat the account debit as taking possession; others prefer a prepaid card already loaded with the foreign currency.
Fixed fees and conversion margins: permitted earnings
The bank may charge a fee per transaction or apply a spread between buying and selling rates. These earnings pay for an exchange service and are not riba, provided they are known before the transaction and are not linked to a period of time.
Withdrawing cash from an ATM abroad
The withdrawal converts the local currency debited from the account into euros. It is an exchange combined with a cash service, not a loan, as long as the account stays in credit. A cash advance on a credit card, by contrast, adds interest.
Why the interbank market settles in two days
Between banks, a spot deal agreed on Monday is usually delivered on Wednesday, allowing time for payment instructions to be sent. This technical convention, known as T+2, exists for operational reasons and is not credit granted by either party.
AAOIFI's tolerance for the settlement lag
AAOIFI Sharia Standard No. 1 accepts constructive possession: booking the amounts may follow the customary market period without turning the deal into a deferred exchange. During that interval, neither party may dispose of the amount it has not yet received.
What stricter jurists object
A minority of scholars hold that only same-day delivery fully meets the hand-to-hand rule. Some Islamic banks therefore ask for same-day value settlement, especially for small amounts moving between accounts held at the same institution.
Exchanging currencies within the same bank
When a customer holds a euro account and a dollar account at the same bank, conversion is booked through an immediate pair of entries. This removes any debate about delay and suits individuals as well as small businesses.
The forward contract most scholars reject
Fixing a rate today to deliver both currencies in three months defers both counter-values, which the AAOIFI standard forbids. Standardised futures, currency options and conventional currency swaps are excluded for the same reason.
An importer paying dollars in 90 days: what solution?
A company owing 100,000 dollars to a supplier in three months can obtain from its bank a unilateral promise to sell dollars at a fixed rate. Only the promisor is bound; the actual exchange is concluded on a spot basis on the agreed date.
Mutual promises: the warning sign
If the bank promises to sell and the customer promises to buy, the two crossed commitments recreate a disguised forward contract. AAOIFI requires the promise to be unilateral, or the two promises to cover different conditions, otherwise the transaction loses its compliance.
Leveraged forex accounts offered to retail traders
Online brokers sell so-called Islamic accounts without overnight financing charges. The leverage still relies on an advance from the broker and positions are rarely delivered; many scholars regard these products as speculative even when explicit interest is removed.
Specialist external source
AAOIFI's published standards include Sharia Standard No. 1 on trading in currencies, which sets the delivery rules, the tolerated settlement periods and the exchange transactions that are prohibited.