Islamic Finance Contracts
Economy & finance · How banking works without interest — risk-sharing instruments
Islamic finance replaces the interest-bearing loan with sale, lease and partnership contracts, so that profit is earned only by sharing in the risk of a real asset or venture.
At a glance
| Core shift | Lender–borrower → buyer–seller, lessor–lessee, or investor–partner |
|---|---|
| Sale-based | Murābaḥa (cost-plus) |
| Partnership | Mushāraka & Muḍāraba |
| Home finance | Diminishing Mushāraka |
| Also written | murabahah · musharakah · mudarabah · qard hasan · rahn |
Because ribā forbids charging a guaranteed return on money, Islamic institutions restructure financing so that the financier becomes a seller, a lessor or a partner rather than a mere lender — and profit is tied to a tangible asset or a genuine business risk. Four contracts do most of the work.
Murābaḥa (cost-plus financing) is a transparent sale: to finance a purchase, the bank first buys the asset from the vendor, taking real ownership and liability, then sells it to the customer at an agreed mark-up paid in instalments. The mark-up is fixed in advance; crucially, unlike interest, it cannot be increased if a payment is late. Diminishing Mushāraka (declining partnership), the most common structure for Islamic home finance, works as co-ownership: the bank and the customer buy the property together, the customer pays rent on the bank's share and gradually buys that share out, so the rent falls as ownership rises until title passes wholly to the customer.
For funding ventures, two partnership contracts share risk directly. In Mushāraka (joint venture), both parties contribute capital; profit is split by a pre-agreed ratio, but any loss is borne strictly in proportion to capital — so a failed venture does not leave the entrepreneur owing the whole sum plus interest. In Muḍāraba (silent partnership), one side provides all the capital and the other the expertise and management; profit is shared by agreement, but a loss falls entirely on the capital provider, the working partner losing only their effort (unless they were negligent or dishonest).
The thread running through all four is the placement of risk. Conventional finance shifts risk onto the borrower through collateral and compounding interest; Islamic finance requires the institution to share in the risk of the underlying asset or business in order to justify its profit.
Related in Chronicle
Curated reference on Islamic belief and thought. On matters where traditions differ, positions are attributed rather than adjudicated; verify points of doctrine with qualified scholars.