Guide to sukuk vs conventional bonds: Critical legal and structural differences

In-Depth Analysis

One of the most common misconceptions in both Islamic and conventional finance circles is that Sukuk are simply 'Islamic bonds.' While Sukuk serve a similar economic function to bonds — raising capital for the issuer and providing returns to investors — their legal, structural, and Shariah characteristics are fundamentally different. Understanding these differences is essential for anyone involved in Islamic capital markets. In a conventional bond, the investor lends money to the issuer. The bond represents a debt obligation: the issuer promises to repay the principal at maturity and to make periodic interest (coupon) payments. The bondholder has no ownership claim over any specific asset of the issuer; instead, the bondholder is a creditor with a contractual right to repayment. If the issuer defaults, the bondholder's claim is against the general assets of the company, subject to the terms of the bond indenture. In a Sukuk, the investor purchases a proportional ownership share in an identified underlying asset, project, or investment activity. The Sukuk certificate represents this ownership interest. Returns to the investor are derived from the performance of the underlying asset — rent in the case of Ijarah Sukuk, profit in the case of Musharakah Sukuk, or sale proceeds in the case of Murabahah Sukuk. The Sukuk holder is not a creditor but an owner. This ownership distinction has profound implications. In a conventional bond, the interest rate is predetermined and fixed regardless of the performance of the issuer's assets. In an equity-based Sukuk (such as Musharakah), the return is variable and depends on actual performance. Even in asset-based Sukuk like Ijarah, where the rental rate may be benchmarked to a reference rate, the return is conceptually linked to the use of a real asset rather than being a charge for the use of money. The asset-backing requirement in Sukuk also creates a different risk profile. Conventional bonds are typically unsecured (senior unsecured notes being the most common corporate structure), meaning the investor's recovery in default depends on the general creditworthiness of the issuer. Sukuk, by contrast, should in theory provide recourse to identified assets. However, in practice, many Sukuk have been structured as 'asset-based' rather than 'asset-backed,' meaning the Sukuk holders have beneficial ownership but not true legal title, which limits their recourse in default scenarios. The trading mechanics also differ. Because Sukuk represent ownership in assets rather than debt, their secondary market tradability depends on the composition of the underlying portfolio. If the portfolio is predominantly tangible assets, the Sukuk are freely tradable. If the portfolio is predominantly receivables or cash, trading is restricted to face value to avoid the prohibition on trading debt at a discount (which would constitute Riba).