Business

EIN Confirmation Letter (IRS Notice CP575)

An EIN confirmation letter (IRS Notice CP575) is the official IRS notice that assigns or confirms a business's nine-digit Employer Identification Number. It prints the entity's legal name, responsible party, mailing address, notice date, and the EIN itself. Banks, payroll providers, and lenders accept it as proof the EIN belongs to your business.

Written & maintained by the Granite team · Last updated September 2026

Overview

The IRS issues Notice CP575 after it assigns an EIN to a business, LLC, corporation, trust, or estate. The original mailed series (CP575 A through J) went out once, right after a Form SS-4 application, and the IRS cannot reprint it. Since 2026 the IRS also offers a digital CP575 that eligible Business Tax Account users can download at any time. The IRS accepts the digital version as a substitute for both the original notice and Letter 147C.

The letter is short: your entity name and responsible party as the IRS has them on file, the mailing address, the notice date, and one headline line reading "Your Employer Identification Number (EIN) is NN-NNNNNNN". It is different from Letter 147C (the IRS's mailed EIN verification letter you request by phone) and from your state formation filing. The CP575 proves the federal tax ID; the Articles of Organization prove the entity exists.

When you’ll get your EIN Confirmation Letter (IRS Notice CP575)

  • You applied for an EIN with Form SS-4 or the IRS online application
  • You downloaded the digital CP575 from your IRS Business Tax Account
  • A bank needs proof of your EIN to open a business account
  • A payroll provider, lender, or marketplace asked for EIN verification
  • You are registering the business with a state agency or applying for a license

What’s on your EIN Confirmation Letter (IRS Notice CP575)

These are the fields Granite reads and extracts automatically the moment you upload one.

Entity Name
The legal name of the business, LLC, trust, or estate the EIN was assigned to, exactly as the IRS has it on file.
Employer Identification Number (EIN)
The nine-digit federal tax ID in NN-NNNNNNN format. Highly sensitive; it is the business equivalent of a Social Security number.
Responsible Party
The individual the IRS holds accountable for the entity, printed under the entity name with a title such as MEMBER, PRES, or TTEE.
Mailing Address
The address the IRS has on record for the entity. Changes are reported on Form 8822-B.
Notice Date
The date the IRS issued or generated the notice.
Notice Number
The identifier printed on the notice: CP575 for the digital version, or CP 575 A through G for the original mailed series.

How long to keep it

Keep your EIN confirmation letter permanently, for as long as the entity exists and beyond.

The IRS instructs you to keep the CP575 in your permanent records, and it states the original mailed CP575 A through J notice cannot be duplicated or recreated. If you lose it, your fallbacks are the digital CP575 in Business Tax Account, an entity transcript, or Letter 147C requested by phone. All of those take time you will not have when a bank or payroll provider is waiting.

How Granite handles your EIN Confirmation Letter (IRS Notice CP575)

Granite recognizes an EIN confirmation letter on upload, pulls the entity name, EIN, responsible party, address, notice date, and notice number, and files it in your Business Formation collection next to the Articles of Organization and any state registrations for the same entity. The EIN is stored as a sensitive field and encrypted at rest. When a bank asks for EIN proof, search "EIN" or the business name and the notice is one click away.

FAQ

EIN Confirmation Letter (IRS Notice CP575): common questions

What is an IRS EIN confirmation letter?
It is IRS Notice CP575, the notice the IRS issues when it assigns an Employer Identification Number to a business or other entity. It prints the entity's legal name, responsible party, mailing address, notice date, and the EIN. Banks and payroll providers accept it as written confirmation that the EIN belongs to your business.
How do I obtain an EIN confirmation letter?
The IRS lists three ways to confirm an EIN. Download the digital CP575 from your IRS Business Tax Account. Request an entity transcript. Or call the IRS Business and Specialty Tax Line and ask for Letter 147C, which the IRS then mails or faxes to you. The original mailed CP575 cannot be reissued.
How do I get a PDF of my EIN letter?
Sign in to your IRS Business Tax Account. Eligible users can download a digital CP575 as a PDF. The IRS accepts this digital notice as a substitute for both the original CP575 series and Letter 147C. If you applied online with the IRS EIN application, you also had a one-time chance to print the confirmation at the end of that session.
What do I do if I lost my EIN confirmation letter?
You cannot get the original reprinted. Instead, download the digital CP575 from Business Tax Account, or call the IRS Business and Specialty Tax Line and request Letter 147C. Both are accepted as EIN verification. Store the replacement somewhere you can find it again so you do not repeat the process.
Can I get my EIN confirmation letter by email?
No. The IRS does not email EIN confirmation or verification letters. The digital CP575 is available only as a download inside Business Tax Account, and Letter 147C is sent by mail or fax after you request it by phone.
What is the difference between CP575 and Letter 147C?
CP575 is the original assignment notice, issued once when the EIN is created. Letter 147C is the verification letter you request later if you need proof of an EIN that was previously assigned. Since 2026 the IRS treats the digital CP575 from Business Tax Account as equivalent to Letter 147C, so either one satisfies a bank or payroll provider.
How long should I keep my EIN confirmation letter?
Permanently. The IRS tells you to keep the CP575 in your permanent records, and the original cannot be duplicated. You will need it repeatedly over the life of the business for banking, payroll, licensing, and lending, and again when you close the entity.

Keep your EIN Confirmation Letter (IRS Notice CP575) in one place.

Drop it in once. Granite reads it, files it, and makes it findable forever, by you today and by the people who'll need it later.