Invoicing software is a digital tool that helps businesses create, send, and manage invoices efficiently. It allows users to customize invoice templates, track payments, and automate billing processes. This software can save time and reduce errors compared to manual invoicing methods. Many invoicing software options also offer features like expense tracking, reporting, and integration with accounting systems. Popular examples include QuickBooks, FreshBooks, and Zoho Invoice. These tools are especially useful for freelancers and small businesses looking to streamline their financial operations.