QuickBooks Paychex integration refers to the process of connecting QuickBooks accounting software with Paychex payroll services. This integration helps businesses automate their payroll process and eliminate manual data entry. With this integration, payroll data is automatically transferred between QuickBooks and Paychex, ensuring accuracy and saving time. The integration can be done through a third-party service or using Paychex's built-in QuickBooks integration. This integration helps businesses keep their financial records up-to-date and make informed decisions.