Conditional — depends entirely on the fee and interest structure, not the "0% interest" marketing.
Confidence level: Strong on the general principle. Individual apps change their fee structures, so always check current terms.
THE CORE RULING
Buy Now Pay Later is, in its basic form, similar to an accepted Islamic sale contract: the price is fixed at the time of purchase and paid in installments over a set period, without the seller adding anything for the delay. This resembles bai' mu'ajjal (deferred-payment sale), which mainstream scholarship treats as permissible as long as the price and schedule are fixed upfront and nothing is added later.
The problem is what happens if a payment is missed. Nearly every BNPL provider — whether marketed as "0% interest" or not — charges a late fee, a penalty, or converts the remaining balance into an interest-bearing EMI once a due date is missed. That additional charge, applied specifically because payment was delayed, is riba al-nasi'ah (interest on a deferred debt), regardless of what it's labeled. Several scholars, including Shaikh Salih al-Fawzan, have specifically addressed this: whether it's called a "late fee," a "penalty," or a "processing charge," an amount added to a debt because payment was late is the same riba described in the Quran and Sunnah.
WHY MOST INDIAN BNPL APPS TRIGGER THIS
Common structures like Simpl and LazyPay typically work as follows: — An interest-free window (often 15–30 days) where the balance can be cleared with no extra charge — A late fee or penalty charge if payment isn't made within that window — An option, or automatic conversion, to an EMI plan with a stated interest rate for larger amounts or longer tenures — Some plans charge a processing or convenience fee up front regardless of repayment timing, which some scholars also flag as a form of hidden cost on the loan
The interest-free window itself is not the problem — it's what happens if you miss it. A BNPL plan that you pay off within the free window, with no fee ever charged, functions closer to a permissible deferred sale. The same plan becomes impermissible the moment it converts to an interest-bearing EMI or charges a late penalty.
Note: some Indian BNPL brands have changed hands or shut down since 2024 (for example, ZestMoney wound down its consumer business and its brand was acquired by DMI Finance), so always check a provider's current terms rather than relying on older reviews.
WHAT YOU SHOULD DO
Before signing up: Read the actual terms for late fees, processing fees, and any EMI conversion clause — not just the "0% interest" headline. Only use it if you are certain you can repay within the free window every single time.
If you already use BNPL: Prioritize clearing any active balance before the due date to avoid triggering a late fee. If a balance has already rolled into an interest-bearing EMI, work to pay it off as quickly as possible and consult a scholar about how to handle interest already accrued.
If you tend to miss payment deadlines: Avoid BNPL altogether and use savings or a genuinely interest-free option instead, since the structural risk of an interest-bearing penalty is high for anyone who isn't consistently able to pay on time.
WHAT COULD CHANGE THIS ANSWER
— The provider charges absolutely no fee, penalty, or interest under any circumstance, including late payment — The plan is structured as a genuine Murabaha (cost-plus sale) by an Islamic finance provider, with a fixed price disclosed upfront and no late-payment increase — You consistently pay within the free window, so no additional charge is ever actually incurred — A qualified scholar reviews the specific provider's current terms and confirms no riba element applies
This confirms the general ruling principle only. Provider terms change frequently — verify your specific app's current fee structure and consult a qualified scholar for your situation.