What does Islam say about lending money to friends?

Islam encourages lending money to friends as an act of kindness, as long as there's no interest and the loan is written down. You can ask for exactly what you lent, but not a penny more. If your friend struggles to repay, Islam asks you to give them time, and forgiving the debt is even better.

Lending is a good deed

In Islam, an interest-free loan (qard hasan, "a beautiful loan") is a form of help, not a business. The Prophet ﷺ said that whoever relieves a believer of a hardship in this world, Allah will relieve him of a hardship on the Day of Judgement (Sahih Muslim 2699). Helping a friend with rent, a car repair or a deposit can be a real act of worship when done for Allah.

No interest, no hidden extras

The loan must be repaid in the same amount. Asking for extra, even "just £50 for the trouble", is riba. Scholars also say a lender shouldn't set conditions that bring a benefit, like "you lend me your car every weekend until you pay me back". If your friend chooses to repay with a little extra as a thank-you, without it being agreed beforehand, that's allowed and even praised: the Prophet ﷺ repaid a loan with a better camel than he borrowed and said the best people are those who repay best (Sahih Muslim 1600).

Write it down, even with friends

The longest verse in the Quran is about debt, and it opens with this instruction:

يَـٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوٓا۟ إِذَا تَدَايَنتُم بِدَيْنٍ إِلَىٰٓ أَجَلٍ مُّسَمًّى فَٱكْتُبُوهُ "O you who have believed, when you contract a debt for a specified term, write it down." Quran 2:282

Writing it down isn't a sign of distrust. It protects the friendship. A short note or message with the amount, the date and when it will be repaid is enough. Many friendships break over forgotten details, not over bad intentions.

When your friend can't pay back

Islam is gentle with someone in real difficulty:

وَإِن كَانَ ذُو عُسْرَةٍ فَنَظِرَةٌ إِلَىٰ مَيْسَرَةٍ ۚ وَأَن تَصَدَّقُوا۟ خَيْرٌ لَّكُمْ ۖ إِن كُنتُمْ تَعْلَمُونَ "And if someone is in hardship, then [let there be] postponement until [a time of] ease. But if you give [from your right as] charity, then it is better for you, if you only knew." Quran 2:280

The Prophet ﷺ told of a man who used to tell his staff to let off people in hardship, and Allah forgave him for it (Sahih al-Bukhari 2078). Note that forgiving a debt counts as sadaqah, but you can't count it as zakat. See What is the difference between zakat and sadaqah?

Practical wisdom

Only lend what you could cope with losing.
It's fine to say no kindly if lending would hurt your own family.
Money still owed to you may count toward your zakat. See Do I pay zakat on money someone owes me?
The same rules apply to non-Muslim friends. See Can I keep my non-Muslim friends after becoming Muslim?

Key points

Lending to friends is encouraged as a good deed.
No interest or extra benefit can be agreed.
The Quran tells us to write debts down.
Give time to a friend in hardship; forgiving is better.

Tip: Send a simple message after lending: "Lent you £300 on 12 March, you'll pay back by June, no rush if things get tight." It keeps both of you clear and kind.