How can I obtain a copy of the IRS EIN Verification Letter (147C)?

If you lost your IRS EIN confirmation letter (CP 575), you can request an EIN verification letter called a 147C Letter from the IRS. This letter is commonly accepted by banks, payment processors, and vendors as proof of your EIN.

How to get the IRS EIN verification letter (147C)

Call the IRS Business & Specialty Tax Line

[IRS Business and Specialty Tax Line]()

Phone: 800-829-4933

Hours: Monday–Friday, 7:00 AM–7:00 PM local time (U.S.)

If calling from outside the U.S., you may need to use an international calling service.

Information you should have ready

The IRS agent may ask for:

• Business legal name
• EIN (if you remember it)
• Business address
• Responsible party name
• Formation details
• Your role in the company

Only an authorized person (owner, officer, partner) can request it.

How you receive the letter

The IRS can usually:

• Fax the 147C letter immediately during the call, or
• Mail it to the business address on file

Fax is much faster.

If you don’t remember the EIN

You can still try:

• Checking old tax filings
• Bank account opening documents
• State filings
• Previous payroll filings
• Old IRS notices

You can also check your IRS online business tax account if available:

IRS Business Tax Account

The original EIN confirmation notice is called CP 575, while the replacement verification letter is 147C.

Updated on: 24/05/2026