What is IRS Form CP-575?
When you apply for an Employer Identification Number (EIN) by submitting Form SS-4 to the IRS, you’ll receive a confirmation notice called a CP-575 letter. This document officially confirms that the IRS has assigned your business an EIN. It includes your company’s legal name, address, EIN, and the date it was issued.
The IRS mails this letter to the address listed on your application. It typically arrives within 8 to 10 weeks after your EIN is issued. It can additionally be sent via fax if your application was submitted via a fax number.