In international trade, a customs invoice template plays a crucial role in facilitating the smooth movement of goods across borders. However, its importance is often overlooked or misunderstood. To shed light on this essential document, this article will explore the basics of a customs invoice template, its purpose, the key elements it contains, and its role in international trade. Additionally, we will discuss the different types of customs invoice templates, provide a step-by-step guide on how to fill one out correctly, and explore the impact of digitalization on customs invoices.