The progress of science and technology is currently increasing rapidly. Evidenced by new discoveries such as the internet network. The internet has now been used as a medium for buying and selling online. Buying and selling online is commonly known as e-commerce. Currently in one of the online buying and selling applications, namely Shopee, a delayed payment system (debt) called ShopeepayLater has been applied.The purpose of this research is to find out how
the law of buying and selling online is in the perspective of Islamic law and how the law of using ShopeepayLater in buying and selling online is in the perspective of Islamic law. This type of research is qualitative. The data collection method used is the library research method. This study uses descriptive data analysis techniques, namely analyzing a phenomenon or social reality, by describing the
variables that are relevant to the problem and the unit being studied and analyzed in a descriptive qualitative manner using the inductive thinking approach, namely
a way of thinking that departs from facts, events that concrete, then from the specific and concrete facts generalizations which have a general character are
drawn. The results of the research prove that the law of buying and selling online according to Islamic law is valid as long as it does not contain haram elements, and the goods being traded are halal. But for ShopeepayLater lending practices it is not in accordance with Islamic law, because there is an element of usury contained therein
