This paper will deal with coins found in three insulae of Aventicum/Avenches (CH), capital of the Helvetii during the Roman period. Two recently excavated insulae (3 and 15) have provided testimony of houses constructed soon after the integration into the Roman Empire. Insula 13 hosted two luxurious houses, probably properties of high ranked personages. The archaeological context of the coin finds and their contribution to the chronology of different insulae will be discussed. Next to considering coin circulation, the provenance of the coins in different domestic structures will be analysed in greater detail and, where possible, their relation to other archaeological objects. As regards stratigraphy, we will consider in which type of archaeological layers (construction/occupation/destruction) coins occur, and what it means for their interpretation.