This article is an educational explainer about how a category of financial instrument generally works. It is not investment advice and does not describe any specific current offering, company, or security.
Twice a year, holders of Nigeria’s federal government Sukuk receive a payment that lands on the same schedule as a bond coupon and is sized using the same kind of fixed-rate formula as a bond coupon. On a spreadsheet, it looks almost indistinguishable from one. Legally, though, that payment is not interest, and the paper behind it is not a loan agreement. It is rent, paid by the federal government to lease back a share of the very roads its borrowing helped finance. Understanding why that distinction exists, and how it gets built into the contract itself, explains why the Sukuk structure has become a routine financing tool for sovereign issuers in Muslim-majority and mixed-population countries alike, Nigeria’s Debt Management Office (DMO) among them.
Why a plain bond will not do
A conventional government bond is, in legal substance, a loan: the investor hands over cash, and the government promises to repay that cash plus interest on a set schedule. Under Islamic commercial law, a predetermined return earned purely from lending money is treated as riba (usury), and riba is prohibited, regardless of what the borrowed money is used for. That prohibition is a categorical rule about how a return may be generated, not a matter of pricing or fairness, so a government cannot simply relabel a bond coupon and expect the change to pass scrutiny. Scholars supervising Sukuk issuance instead require that any return paid to investors be traceable to a genuine economic activity, such as trade, partnership, or the ownership and lease of a real asset, rather than to money growing over time on its own. That requirement is what forces the entire structure to be rebuilt rather than simply renamed.
How the lease is engineered
To meet that requirement, an Ijara Sukuk works through an intermediary rather than a direct loan. The government identifies a pool of underlying assets, commonly infrastructure such as roads under construction or rehabilitation, and transfers beneficial ownership of those assets to a special purpose vehicle (SPV) created solely to issue the Sukuk. Investors do not lend the SPV money; they buy Sukuk certificates representing a proportional, undivided ownership interest in that asset pool. In effect, each certificate holder owns a small slice of the road itself.
The SPV then leases the assets back to the government under an Ijara, or lease, agreement. As lessee, the government pays periodic rental amounts calculated to produce a fixed return, much as a bond’s coupon rate is set, and the SPV passes that rental income straight through to certificate holders. At maturity, a separate agreement, known as a purchase undertaking, obliges the government to buy the assets back from the SPV at their original value, and the sale proceeds are used to redeem the certificates at par, mirroring how a bond repays principal. Every element of a conventional bond, the periodic payment and the return of principal, is reproduced, but each one flows from ownership, lease, and sale of a tangible asset rather than from a loan.
Why the structure matters beyond semantics
The economic outcome for an investor is often close to that of a bond: a fixed periodic cash flow and a lump-sum repayment at the end. What differs is the legal path the cash takes to get there, and that path is what lets the instrument satisfy Sharia-compliance screens applied by Islamic banks, takaful (Islamic insurance) firms, and other faith-based institutional investors generally barred from holding interest-bearing paper. For a sovereign issuer, that opens access to a pool of demand a conventional bond cannot reach, alongside the usual base of pension funds and asset managers. In Nigeria, Sukuk issued by the DMO have been listed and traded on established local exchanges alongside conventional government bonds, with proceeds typically earmarked for specific infrastructure projects rather than pooled into general spending.
It is worth noting that the rental rate in most sovereign Ijara Sukuk is set with reference to prevailing market benchmarks rather than to actual toll revenue or usage income generated by the underlying road, which is precisely why regulators and Sharia scholars emphasize that genuine asset ownership and lease risk, not just the terminology used, are what determine compliance. That is the distinction this structure exists to preserve: a payment called rent, delivered through a mechanism engineered to make the label accurate, rather than a payment called interest wearing a different name.
