Why Islam Forbids Riba

Riba — usually translated 'interest' or 'usury' — is forbidden in Islam, and forbidden in unusually severe terms. In its core and clearest form (ribā al-nasī'ah), it is any stipulated increase on a loan: money lent on condition that more money comes back. The Qur'an treats it as one of the gravest financial wrongs; the Prophet ﷺ listed it among the destructive sins.

Sunni scholars agree on the prohibition itself. They discuss the details of what counts as riba in complex transactions — but those details belong to fiqh, not to an introduction. The principle is simple: lending is an act of kindness, and kindness is not to be charged for.

The Qur'an anticipates the modern objection word for word. Surely lending money for a return is just another business? No, the Qur'an replies — and the difference is the whole point. In trade, both parties take risk and both may gain or lose; wealth is created by real exchange. In a loan at interest, one party is guaranteed a return regardless of the outcome, and the other bears all the risk. Money is made from money, and from the borrower's need.

The verses that immediately follow the prohibition tell us what the alternative looks like — and it is not merely 'no interest'.

Sunni scholars have long noted several harms that riba produces. It transfers wealth from those in need to those with surplus — the opposite direction from charity. It rewards holding money over working, trading or building. It turns a neighbour's hardship into an opportunity. And it treats money — a measure of value — as if it were itself a good that grows.

Ibn al-Qayyim summarised the classical view: riba is forbidden because of the injustice in it — the lender takes an increase without giving anything in exchange, and the borrower is exploited in his need.

Debt is the quietest form of unfreedom. Ask anyone who has carried it: the interest does not care whether you lost your job, whether your child fell ill, whether the business failed through no fault of yours. It compounds regardless. Entire households and, for that matter, entire nations spend their productive years servicing yesterday's borrowing. And the people who profit are, by design, those who already had money to lend.

This is observation, not economics. But it is what the Qur'an means by 'you do no wrong, nor are you wronged' — the loan returns the principal, and the hardship is met with time or with forgiveness, not with penalty.

Trade and partnership, in which risk and reward are shared. Lending as a good deed (qarḍ ḥasan): the principal returned, nothing added. Patience with the debtor in hardship, and the strong encouragement — stated as 'better for you' — to forgive the debt outright. And zakah, the obligatory transfer of a portion of surplus wealth to those in need, which the Qur'an calls the real way wealth is multiplied.

None of this asks a person to be poor. It asks that wealth move through work, exchange and generosity — never through another person's need.