Kepastian Hukum Perkawinan Siri dalam Perspektif Hukum Perdata Islam di Indonesia

Unregistered Islamic marriage (perkawinan siri) remains common in Indonesia and raises problems of legal certainty because marriages conducted according to religious rules are not recorded by the state. Using a normative juridical method with statute and conceptual approaches, this study analyses the position of such marriages in Islamic law and Indonesian positive law, legal certainty for wives and children, and the available legal remedies. The findings show that validity under religious law and the state’s registration requirement are distinct but interrelated. Without a marriage certificate, proving marital status, claiming maintenance, dividing joint property, inheriting, and establishing a child’s civil relationship with the father become harder. Marriage validation (isbat nikah) is only a limited corrective remedy, so registration from the outset remains the main guarantee of legal certainty.