The Problem Being Solved
Conventional home financing works by lending money at interest: the bank gives the buyer the price, the buyer pays it back plus interest over 20-30 years. Islam prohibits this because the interest is riba.
The ILTB structure solves this by decomposing the transaction differently:
- The bank buys the asset (the house)
- The bank leases it to the customer for a defined period
- At the end of the period, the bank transfers ownership — by gift, by sale at a pre-agreed price, or by a new market-value sale
The bank earns its return from rental income (which is permitted) rather than from lending money at interest (which is prohibited). The customer gets use of the house from day one, makes regular payments, and becomes the owner at the end.
The Classical Foundation
Classical fiqh has no direct precedent for “lease ending in ownership” as a single contract — leases and sales were conceptually separate transactions. The ILTB is a contemporary construction combining:
- Traditional ijara (lease) jurisprudence for the use-rights phase
- A separate wa’d (unilateral promise to sell/gift) for the ownership transfer
The critical Shari’ah constraint: the lease and the promise of ownership transfer must be two separate documents. They cannot be made conditional on each other within a single contract, because this would risk combining an obligation to lease with an obligation to sell in a way that creates gharar (uncertainty) or changes the risk profile of the ijara.
Key Juristic Issues
- Who bears the risk of the asset? During the lease, the bank (as owner) bears risks associated with ownership, not use. If the house is destroyed by flood (not the customer’s negligence), the bank bears the loss.
- Maintenance: In a true ijara, the lessor (bank) bears structural maintenance costs. This is often modified in practice, which some scholars flag as weakening the Islamic structure.
- The ownership transfer promise: Must not be built into the lease itself — a separate promise fulfills the transfer.
See also: Fiqh Al Wakala Al Ammah, Fiqh Al Murabaha, Fiqh Al Bay Al Muajjal, Fiqh Al Waqf Al Mushtarak, Fiqh Al Madhab Al Maliki