Islamic banking, Islamic finance (Arabic: مصرفية إسلامية masrifiyya 'islamia), or Sharia-compliant finance is banking or financing activity that complies with Sharia (Islamic law) and its practical application through the development of Islamic economics. Some of the modes of Islamic finance include mudarabah (profit-sharing and loss-bearing), wadiah (safekeeping), musharaka (joint venture), murabahah (cost-plus), and ijarah (leasing). Sharia prohibits riba, or usury, generally defined as interest paid on all loans of money (although some Muslims dispute whether there is a consensus that interest is equivalent to riba). Investment in businesses that provide goods or services considered contrary to Islamic principles (e.g. pork or alcohol) is also haram ("sinful and prohibited"). These prohibitions have been applied historically in varying degrees in Muslim countries/communities to prevent un-Islamic practices. In the late 20th century, as part of the revival of Islamic identity, a number of Islamic banks formed to apply these principles to private or semi-private commercial institutions within the Muslim community. Their number and size has grown, so that by 2009, there were over 300 banks and 250 mutual funds around the world complying with Islamic principles. By 2024, estimates of total Sharia-compliant assets ranged from US$3.88 trillion according to the Islamic Financial Services Board's Stability Report 2025, to US$5.98 trillion according to the ICD–LSEG Islamic Finance Development Report 2025, which applied a broader definition of the Islamic economy across 140 countries. The Gulf Cooperation Council region accounted for the largest share at 53.1% of IFSB-measured assets, followed by East Asia and the Pacific at 21.9%, driven by Malaysia and Indonesia. Although Islamic banking still makes up only a fraction of the banking assets of Muslims, since its inception it has been growing faster than banking assets as a whole, and is projected to continue to do so. The Islamic banking industry has been lauded by devout Muslims for returning to the path of "divine guidance" in rejecting the "political and economic dominance" of the West, and noted as the "most visible mark" of Islamic revivalism; its advocates foresee "no inflation, no unemployment, no exploitation and no poverty" once it is fully implemented. However, it has also been criticized for failing to develop profit and loss sharing or more ethical modes of investment promised by early promoters, and instead merely selling banking products that "comply with the formal requirements of Islamic law", but use "ruses and subterfuges to conceal interest", and entail "higher costs, bigger risks" than conventional (ribawi) banks.
History
Usury in Islam
Islamic finance is based upon the belief that "all forms of interest are riba and hence prohibited". The word "riba" literally means "excess or addition", and has been translated as "interest", "usury", "excess", "increase" or "addition". According to Islamic economists Choudhury and Malik, the elimination of interest followed a "gradual process" in early Islam, "culminating" with a "fully fledged Islamic economic system" under Caliph Umar (634–644 CE). Other sources (Encyclopedia of Islam and the Muslim World, Timur Kuran), do not agree, and state that the giving and taking of interest continued in Muslim society "at times through the use of legal ruses (ḥiyal), often more or less openly," including during the Ottoman Empire. Still another source (International Business Publications) states that during the "Islamic Golden Age" the "common view of riba among classical jurists" of Islamic law and economics was that it was unlawful to apply interest to gold and silver currencies, "but that it is not riba and is therefore acceptable to apply interest to fiat money—currencies made up of other materials such as paper or base metals—to an extent." In the late 19th century Islamic modernists reacted to the rise of European power and influence and the European colonization of Muslim countries by reconsidering the prohibition on interest and whether interest rates and insurance were not among the "preconditions for productive investment" in a functioning modern economy. Syed Ahmad Khan, argued for a differentiation between sinful riba "usury", which they saw as restricted to charges on lending for consumption, and legitimate non-riba "interest", for lending for commercial investment. However, in the 20th century, Islamic revivalists, Islamists, and other Islamic activists worked to define all interest as riba, to enjoin Muslims to lend and borrow at "Islamic banks" that avoided fixed rates. By the 21st century this Islamic banking movement had created "institutions of interest-free financial enterprises across the world". Loans are permitted in Islam if the interest that is paid is linked to the profit or loss obtained by the investment. The concept of profit acts as a symbol in Islam of equal sharing of profits, losses, and risks. The movement started with activists and scholars such as Anwar Qureshi, Naeem Siddiqui, Abul A'la Maududi, Muhammad Hamidullah, in the late 1940 and early 1950s. They believed commercial banks were a "necessary evil," and proposed a banking system based on the concept of mudarabah, where shared profit on investment would replace interest. Further works specifically devoted to the subject of interest-free banking were authored by Muhammad Uzair (1955), Abdullah al-Araby (1967), Mohammad Najatuallah Siddiqui, al-Najjar (1971) and Muhammad Baqir al-Sadr.
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