What is CP 575?
The CP 575 is the notice the IRS issues to confirm a business’s Employer Identification Number (EIN) the first time it is assigned, serving as the original official proof of that number.
Why does CP 575 matter?
Banks, payroll providers, and licensing agencies often require the CP 575 as proof of EIN, and losing it means requesting a replacement verification letter (Form 147C) instead.
How does CP 575 work?
The IRS mails the CP 575 automatically once it assigns an EIN, whether the business applied online, by fax, or by mail via Form SS-4; the business should store it permanently since it is only issued once.
Frequently asked questions
What if a business loses its CP 575?
The IRS does not reissue the original CP 575; instead, businesses request a 147C letter as a replacement EIN verification.
Is the CP 575 the same as the EIN itself?
No, the EIN is the nine-digit number; the CP 575 is the official document confirming that number was assigned to the business.
How BrightMove helps
BrightMove’s Back Office module keeps entity and tax documentation organized alongside billing and payroll records. See BrightMove’s Back Office billing and invoicing.