PT Arpan Bali Utama as an industrial company must always be responsive to the company's needs, because the company's production supplies the existing inventory. In this study, the design of an inventory information system for stock opname and warehouse card activities at PT Arpan Bali Utama. The design of this inventory information system is intended to solve problems related to the management of stock opname data and warehouse cards, both in data input and in computerization of stock opname reports and warehouse cards. This system was developed using the Visual Basic for Applications (VBA) programming language and a database developed using the Microsoft Access 2016 application. The results obtained from this study are an inventory information system designed to assist accounting and warehouse departments in carrying out stock opname activities. data input, data search, and production of stock opname reports and warehouse cards. In addition, this system can also help the accounting department through warehouse cards to see the movements of goods in the warehouse.