Islamic Finance Glossary
Clear, plain-language definitions of 48+ key Islamic finance and halal banking terms, written for Nigeria. From FRACE certification and Mudarabah pools to FGN Sukuk and faraid inheritance, this glossary explains the terminology you'll encounter when comparing Islamic financial products.
Banking
- Wadiah
- Safekeeping or custody. A deposit arrangement where a financial institution holds funds as a custodian. The institution may use the funds (with permission) but guarantees the return of the full deposit amount. Used as the basis for some Islamic current and savings accounts.
Charitable
- Waqf
- An Islamic endowment: a charitable trust where assets are donated permanently for a specific purpose (education, healthcare, community benefit). The assets cannot be sold or transferred; only the income they generate is used for the designated purpose.
Contracts
- Arbun
- A down payment or earnest money in an Islamic contract. The buyer pays a non-refundable deposit to secure the right to purchase an asset at a later date.
- Istisna'a
- A manufacturing or construction contract where a buyer commissions the creation of an asset to be delivered at a future date. The price, specifications, and delivery timeline are agreed upon in advance. Used in construction and project financing.
- Salam
- A forward sale contract where the buyer pays the full price in advance for goods to be delivered at a future date. The quality, quantity, and delivery date must be specified. Historically used for agricultural commodities.
- Tawarruq
- A monetization arrangement where a buyer purchases a commodity on deferred payment terms, then immediately sells it to a third party for cash. Controversial among scholars: some permit it as a liquidity tool while others consider it a circumvention of riba.
- Wakalah
- An agency contract where one party (the principal) appoints another (the agent) to conduct transactions or manage investments on their behalf. The agent earns a fee or a share of profit. Used in investment management and some banking products.
Estate Planning
- Faraid
- Islamic inheritance law. A system of fixed shares that dictates how a deceased Muslim's estate is distributed among heirs. Designated shares go to the spouse, children, parents, and siblings according to Quranic guidelines. In Nigeria, faraid applies to Muslim estates in states where Sharia courts operate, and Sharia Courts of Appeal handle Islamic personal law matters including inheritance.
- Hiba
- A lifetime gift under Islamic law. Because faraid shares apply only to what remains at death, a hiba made and delivered during your lifetime is a valid way to transfer specific assets to chosen recipients. Nigerian law recognizes lifetime gifts; property transfers still require the normal registration and consent procedures.
- Letters of Administration
- The court grant Nigerian heirs typically need to deal with a deceased person's assets such as bank balances and shares when there is no probated will. Probate registries at the state high courts issue them; where the deceased was a Muslim in a state with Sharia courts, distribution of the estate follows Islamic inheritance law.
- Wasiyya
- An Islamic bequest. A Muslim may direct up to one third of their estate to beneficiaries who are not fixed-share heirs (such as charities or individuals outside the faraid shares). Anything beyond one third, or to an existing heir, requires the other heirs' consent. In Nigeria a wasiyya operates within Islamic personal law, which Sharia courts in many northern states apply to Muslim estates.
Financing Structures
- Diminishing Partnership
- See Musharakah Mutanaqisah. A co-ownership arrangement where one partner gradually buys out the other's share over time. In Nigeria, Jaiz Bank uses a diminishing partnership combined with Ijara rent in its home finance product.
- Ijara
- A lease or rental agreement used in Islamic finance. The financier purchases the asset and leases it to the customer, with ownership transferring at the end of the term (Ijarah wa Iqtina). In Nigeria, non-interest banks apply it to auto and equipment finance, education fee finance, and lease-to-own home financing.
- Mudarabah
- A profit-sharing partnership where one party (Rab al-Maal) provides capital and the other (Mudarib) provides expertise and management. Profits are shared according to a pre-agreed ratio. Financial losses are borne by the capital provider unless caused by the manager's negligence.
- Murabaha
- A cost-plus sale. The seller purchases an asset and resells it to the buyer at a disclosed, agreed-upon markup. The buyer pays the total amount in installments. The price and payment schedule are fixed and transparent at the time of the contract. Commonly used for home financing, auto financing, and business equipment purchases.
- Musharakah
- A joint partnership where all parties contribute capital and share profits and losses proportionally. Nigerian non-interest banks apply it in business and project financing, profit-sharing savings pools, and, combined with Ijara, in home finance.
- Musharakah Mutanaqisah
- Diminishing partnership, often called Diminishing Musharakah. A form of Musharakah where one partner's share decreases over time as the other buys it out. In home finance the buyer and bank co-own the property, the buyer pays rent on the bank's share, and each unit purchase increases the buyer's ownership until it reaches 100%. Jaiz Bank's home finance combines this with Ijara rent.
- Qard Hasan
- A benevolent or interest-free loan. The borrower repays only the principal amount with no additional charges. It is considered a charitable act and is the only type of loan fully permissible in Islam.
General
- Amana
- Trust or safety. In Islamic finance, refers to a trust arrangement where assets are held by one party on behalf of another. Several Nigerian non-interest banking products use the concept for safekeeping arrangements, including Wadia savings accounts.
- Halal
- Permissible under Islamic law. In finance, refers to products and transactions that comply with Shariah principles: avoiding interest, prohibited industries, and excessive uncertainty.
Governance
- AAOIFI
- Accounting and Auditing Organization for Islamic Financial Institutions. The primary international body that sets Shariah accounting, auditing, governance, and ethical standards for Islamic finance. Based in Bahrain and followed by institutions in over 45 countries.
- Fatwa
- A religious ruling or opinion issued by a qualified Islamic scholar (mufti) on a specific matter. In finance, a fatwa may certify that a product or transaction complies with Shariah principles.
Insurance
- Retakaful
- Shariah-compliant reinsurance. Takaful operators spread large risks by participating in retakaful arrangements instead of conventional reinsurance. NAICOM's takaful guidelines address retakaful arrangements for Nigerian operators, and disclosure of the retakaful panel is a sign of good governance.
- Takaful
- Islamic cooperative insurance. Participants contribute to a shared pool (fund) that provides mutual financial protection against loss or damage. Based on principles of cooperation, shared responsibility, and mutual benefit, unlike conventional insurance's transfer-of-risk model.
- Wakala-Mudaraba Model
- The hybrid Takaful structure most Nigerian operators use. Participants' contributions enter a segregated risk pool as tabarru (donation), the operator earns a disclosed Wakala (agency) fee for managing it, and any savings or investment portion is managed under Mudaraba profit-sharing. NAICOM's guidelines require participant funds to be segregated from shareholder funds.
Investment
- Sukuk
- Islamic bonds or certificates. Unlike conventional bonds that represent debt and pay interest, sukuk represent proportional ownership in an underlying asset, project, or investment. Returns are tied to the asset's performance rather than a fixed interest rate.
Nigeria Market
- ACE (Advisory Committee of Experts)
- The Shariah supervisory board the CBN requires every Nigerian non-interest bank to maintain. The ACE reviews products, contracts, and operations for Shariah compliance. Disclosure quality varies: some institutions publish their ACE members by name while others do not, which is a useful signal when comparing providers.
- FGN Sukuk
- Sovereign Ijara sukuk issued by Nigeria's Debt Management Office on behalf of the Federal Government, with proceeds tied to road infrastructure projects. Certificate holders earn rental income from the underlying assets rather than interest, and offerings are open to retail investors through banks and stockbrokers during subscription windows.
- FRACE
- The Financial Regulation Advisory Council of Experts, the CBN's central Shariah advisory body for non-interest finance in Nigeria. FRACE reviews and certifies the Shariah compliance of regulated frameworks and instruments, including the screening framework behind PenCom's Non-Interest Fund VI. Its certification is the top-level compliance signal in the Nigerian market.
- IRR (Investment Risk Reserve)
- A reserve an Islamic bank sets aside from the depositors' share of Mudarabah pool profits to absorb future investment losses, smoothing the risk borne by depositors. A published IRR policy is a sign of strong disclosure; most Nigerian non-interest banks do not yet publish theirs.
- Mudarabah Pool
- The investment pool an Islamic bank forms from Mudarabah deposits. The bank, as Mudarib, deploys the pool into Shariah-compliant financing; the actual income is calculated and shared between the bank and depositors per the agreed profit-sharing ratio. Nigerian non-interest banks run their Mudarabah savings and term deposits on this basis, though few publish pool results online.
- NDIC (Nigeria Deposit Insurance Corporation)
- The federal agency that insures bank deposits in Nigeria, including deposits at non-interest banks, which it covers through a dedicated non-interest deposit insurance fund so the protection itself stays Shariah-compliant. NDIC cover applies per depositor per bank up to the published limit.
- NGX Lotus Islamic Index
- The Nigerian Exchange's index of Shariah-compliant listed companies, screened using Lotus Capital's published methodology. Constituents pass screens covering core business activities, debt levels, and non-compliant income. It is the reference list for halal stock investing in Nigeria, and the Lotus Halal Equity ETF tracks a basket drawn from it.
- Non-Interest Fund VI (RSA Fund VI)
- The Shariah-compliant fund category inside Nigeria's PenCom-regulated Retirement Savings Account system. Fund VI invests only in non-interest instruments such as sukuk and screened equities under a FRACE-certified framework, and it comes in Active and Retiree variants. Any RSA holder can switch into their PFA's Fund VI at no cost.
- PER (Profit Equalization Reserve)
- A reserve taken from gross Mudarabah pool income before profit distribution, used to stabilize depositor returns across good and bad months. Together with the IRR, it explains why declared rates move more smoothly than raw pool results. Look for a published PER policy as a sign of good disclosure.
Prohibitions
- Gharar
- Excessive uncertainty or ambiguity in a contract. Prohibited in Islamic finance because it can lead to exploitation or disputes. Contracts must have clearly defined terms, subject matter, and obligations.
- Haram
- Prohibited under Islamic law. In finance, includes interest-based products, investments in alcohol, gambling, pork, weapons, tobacco, and adult entertainment industries.
- Maysir
- Gambling or games of chance. Prohibited in Islam. Financial transactions that resemble gambling, with speculative, chance-based outcomes rather than genuine economic activity, are considered maysir.
- Riba
- Interest or usury. One of the most strictly prohibited practices in Islamic finance. Includes any guaranteed, predetermined return on a loan or deposit regardless of the underlying economic outcome. Conventional mortgages, personal loans, and savings account interest are all forms of riba.
Roles
- Rab al-Maal
- The capital provider in a Mudarabah partnership. This party provides the funds but does not actively manage the investment. They bear financial losses (unless due to the manager's negligence) and share in profits per the agreed ratio.
Zakat
- Hawl
- One full lunar year (approximately 354 days). Zakat becomes obligatory when qualifying wealth above the Nisab threshold has been held for one complete Hawl.
- Nisab
- The minimum threshold of wealth that makes Zakat obligatory. Equivalent to the value of 85 grams of gold or 595 grams of silver (whichever is lower). A Muslim whose total qualifying wealth exceeds the Nisab for one full lunar year must pay Zakat.
- State Zakat Boards
- Government bodies in several northern Nigerian states, such as Kano and Zamfara, that collect and distribute Zakat. Unlike some countries, Nigeria has no compulsory Zakat deduction from bank accounts: paying through a state board is voluntary, and most Nigerians calculate and distribute Zakat themselves or through charities.
- Ushr
- The Islamic levy on agricultural produce, charged at 10% of output from naturally irrigated land and 5% from artificially irrigated land. It applies at each harvest rather than annually, and is separate from the wealth-based Zakat on cash and assets.
- Zakat
- One of the Five Pillars of Islam. An obligatory annual charitable contribution of 2.5% of qualifying wealth above the Nisab threshold. Applies to cash, gold, silver, investments, business assets, and other forms of wealth held for one full lunar year (Hawl).
- Zakat al-Fitr
- A special charitable contribution required at the end of Ramadan, before Eid al-Fitr prayers. Unlike regular Zakat (which is wealth-based), Zakat al-Fitr is a fixed amount per person in the household, paid to ensure the poor can celebrate Eid.
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Quick Answer
This glossary covers 45+ essential Islamic finance terms used in Shariah-compliant banking, investing, and financing in Nigeria. Each term includes a plain-language definition and context for how it applies to real products, from Mudarabah savings pools and Murabaha financing to Takaful and faraid inheritance.
Key Takeaways
- 45+ Islamic finance terms defined in plain language
- Nigeria-specific terms: FRACE, ACE, Fund VI, NGX Lotus Islamic Index, FGN Sukuk, NDIC
- Covers banking, investing, financing, Takaful, Zakat, and estate planning
- Includes Murabaha, Musharakah, Ijarah, Riba, Nisab, Faraid, Sukuk, and more
- Cross-linked to relevant product comparison pages
Reviewed by: HalalWallet Editorial Team•Last reviewed: 2026-03-06•Disclosure: No provider pays for placement or ranking on this page. Editorial policy and full disclosures.
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This page is reviewed against HalalWallet editorial standards and source documentation.
Reviewed by: HalalWallet Editorial Team
Last reviewed: 2026-03-06