Banknotes: Their Jurisprudential Status and Legal Rulings

Abstract

Money, as the principal instrument of economic exchange, has undergone profound transformations throughout history. Evolving from the primitive system of barter to credit-based currencies and banknotes (paper money), it has progressed through successive stages of development, reflecting the changing nature of economic systems and commercial transactions. Beyond its economic implications, this transformation has given rise to novel juridical questions in the field of Islamic commercial jurisprudence, particularly concerning the juristic characterization of banknotes and the legal rulings (Aḥkām Sharʿiyyah) that derive from their legal nature. The present study employs a descriptive-analytical approach, drawing upon authoritative sources of Islamic jurisprudence and the opinions of contemporary Muslim jurists to examine the evolution of the monetary system, analyze the principal juristic perspectives regarding the legal nature of banknotes, and elucidate the jurisprudential implications arising from their characterization. The findings of this study indicate that, although banknotes were initially regarded primarily as instruments evidencing debt claims and representing underlying metallic reserves, the evolution of monetary systems and their transformation into legal tender and fiat money have fundamentally altered their juristic characterization. In contemporary Islamic jurisprudence, banknotes are generally recognized as equivalent to fulūs nāfiqah (circulating currency) and are deemed to possess independently recognized, conventionally established monetary value (thamaniyyah iʿtibāriyyah). On this basis, legal rulings such as the obligation of zakāt, the permissibility of paying zakāt with banknotes, the applicability of ribā regulations, the rulings governing currency exchange (ṣarf), foreign currency transactions, and other financial dealings can be analyzed and derived in light of the specific principles governing fiat money. This study, while critically examining and evaluating various juristic perspectives, demonstrates that the theory of the transformation of the nature of banknotes is more consistent with contemporary economic realities and the objectives of Islamic law (maqāṣid al-sharīʿah). It can therefore provide a more coherent framework for the derivation of jurisprudential rulings concerning emerging financial issues.