What form is used to request an Employer Identification Number (EIN)?

The form used to request an Employer Identification Number (EIN) is Form SS-4. This form is specifically designed for businesses or individuals who need an EIN for their tax identification purposes. An EIN is essential for various business operations, such as reporting taxes, hiring employees, and opening a business bank account.

Form 1040 is the individual income tax return used by citizens and residents to report their annual income. Form W-2 is a wage and tax statement issued by employers to report an employee's annual wages and the amount of taxes withheld from their paychecks. Form 1099 is used to report various types of income other than wages, salaries, and tips. Each of these forms serves distinct purposes related to tax reporting but does not pertain to the application for an EIN.