How to Setup Comprehensive Guide to add an EIN to Existing QuickBooks Subscription Error? QuickBooks accounting software has helped millions of small and mid-sized business owners in managing their accounts and records effectively. A few Add-ons to the software can make it one of the most useful accounting software to another level. One such tool that the user can add to the existing QuickBooks Payroll subscription is EIN. Many QuickBooks users find it troublesome to add EIN to QuickBooks payroll. Thus, we have come up with this article, where we will be discussing the step by step process to add EIN to QuickBooks Payroll Basic, Standard or Enhanced subscription. The company that you are subscribing to for payroll services needs an Employer Identification Number (EIN) in order to facilitate the process of paying your employees. To setup this number, follow these steps. In order to setup a comprehensive guide to add an EIN to your payroll subscription, you need to open the QuickBo...