The name control is a unique four character company identifier based on the company's name and EIN. The name control is assigned to a company by the IRS when an EIN is issued. It is commonly the first four characters of the business name.
When preparing the Form 941, 944, or 940, click the question mark icon next to the Name Control field. This will take you to the IRS's Name Job Aid document for more information on how to determine your Name Control.
Otherwise, if you would like to obtain your Name Control, please contact the IRS Practitioner Priority Service at 866-860-4259 or the IRS Business & Specialty Line at 800-829-4933.