Islamic Finance Glossary
Clear, plain-language definitions of 32+ key Islamic finance and halal banking terms — written for U.S. consumers. Whether you're exploring halal mortgages, Shariah-compliant investing, or Zakat obligations, this glossary explains the terminology you'll encounter.
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 checking 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. Faraid-compliant estate plans are offered by U.S. providers like ShariaWiz.
Financing Structures
- Diminishing Partnership
- See Musharakah Mutanaqisah. A co-ownership arrangement where one partner gradually buys out the other's share over time. The most common halal mortgage structure in the U.S., used by Guidance Residential and UIF Corporation.
- Ijara
- A lease or rental agreement used in Islamic finance. In the U.S. home financing context, a funding partner purchases the property and places it in a trust, then leases it to the buyer. Ownership transfers at the end of the term (Ijara wa Iqtina). IjaraCDC — a 501(c)(3) nonprofit — is the leading U.S. provider, structuring Ijara financing through 100+ residential and 200+ commercial funding partners in all 50 states. Monthly payments go to Ijara (an Islamic organization) rather than a conventional bank.
- 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. In its most common U.S. form — Musharakah Mutanaqisah (diminishing partnership) — the buyer gradually purchases the provider's share of a property over time while paying rent on the provider's portion.
- Musharakah Mutanaqisah
- Diminishing partnership. A form of Musharakah where one partner's share decreases over time as the other partner buys it out. This is the most common halal mortgage structure in the U.S. The buyer and provider co-own the property; the buyer's ownership increases with each payment until they own 100%.
- 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. The Amana Funds by Saturna Capital are named after this concept.
- 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
- 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.
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.
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.
- 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 40+ essential Islamic finance terms used in Shariah-compliant banking, investing, and financing in the United States. Each term includes a plain-language definition, Arabic transliteration, and context for how it applies to modern halal financial products.
Key Takeaways
- 40+ Islamic finance terms defined in plain language
- Covers banking, investing, financing, and estate planning terminology
- Includes Murabaha, Musharakah, Ijara, Riba, Nisab, Faraid, Sukuk, and more
- Written specifically for U.S. consumers and investors
- Cross-linked to relevant product comparison pages
Reviewed by: HalalWallet Editorial Team•Last reviewed: 2026-03-06•Disclosure: Featured partners may compensate HalalWallet for clicks. Editorial policy and full disclosures.
Reviewed quarterly and updated for major content changes.
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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