If you’re a business owner and can’t remember or locate your Employer Identification Number (EIN), you’re not alone. Many entrepreneurs ask: how to find my business EIN? The good news is, there are several ways to retrieve it quickly and securely.
This guide will walk you through the best methods to locate your EIN, whether you’ve lost your original documents or never recorded it properly.
What Is a Business EIN?
A Business EIN (Employer Identification Number) is a 9-digit number issued by the IRS to identify your business for tax purposes. Think of it as a Social Security Number (SSN), but for your business.
You need your EIN for:
- Filing business taxes
- Opening a business bank account
- Applying for licenses and permits
- Hiring employees
- Working with vendors or government agencies
How to Find My Business EIN
Here are the most reliable methods to locate your business EIN:
1. Check Your EIN Confirmation Letter (CP 575)
When you applied for your EIN, the IRS issued a confirmation letter—Form CP 575. This document contains your official EIN. Check your business records or email (if you applied online) for a PDF or print copy.
2. Review Your Tax Returns and Official IRS Correspondence
Your EIN will appear on documents such as:
- Filed tax forms (Form 941, 1120, 1065, etc.)
- IRS notices and letters
- Business tax account records
- Past EIN confirmation or filing receipts
3. Look at Business Licenses and Bank Records
Your EIN may be printed on:
- Business licenses or registration certificates
- Business bank account applications or statements
- Loan or credit applications
- Payroll records
4. Ask Your Accountant or Registered Agent
If you used a professional to set up your LLC, corporation, or other entity, they may have your EIN on file. Reach out to your:
- Accountant
- Bookkeeper
- Registered agent service
- Business attorney
5. Call the IRS Business & Specialty Tax Line
If you’ve exhausted all options, contact the IRS directly:
- Phone: 1-800-829-4933
- Hours: Monday–Friday, 7 a.m. to 7 p.m. (local time)
Be ready to verify your identity as an authorized business owner or representative. The IRS can confirm your EIN over the phone or send a replacement letter (Form 147C).
Final Thoughts
If you’re asking how to find my business EIN, don’t panic. Between IRS documents, bank records, and a quick call to the IRS, you can retrieve your EIN and get back to business with minimal disruption.
