Free EIN Lookup: How Do I Find My EIN Online?

To find your Employer Identification Number (EIN) online, you have several options depending on your situation. Here’s a detailed guide:

1. Check Your Records

Your EIN should be documented in various places. Check the following:

  • IRS Confirmation Letter: When you first applied for an EIN, the IRS would have sent you a confirmation letter.
  • Previous Tax Returns: Your EIN will be listed on previously filed tax returns.
  • Bank Records: If you used your EIN to open a business bank account, it should be on your bank documents.
  • Official Documents: Look for your EIN on business licenses, permits, or other official forms filed with government agencies.

2. Contact the IRS

If you cannot find your EIN in your records, you can contact the IRS directly.

  • Business & Specialty Tax Line: Call the IRS at 800-829-4933. The line is open from 7:00 a.m. to 7:00 p.m. local time, Monday through Friday. Be prepared to provide identifying information to verify your identity.

3. Online EIN Retrieval

Currently, the IRS does not provide a direct online EIN lookup tool for the general public due to privacy and security reasons. However, you can access your EIN through some third-party services or databases that require a subscription or payment. These services usually aggregate public records and business data.

4. Employer EIN

If you are looking for your employer’s EIN (for example, for tax purposes), you can find it on:

  • W-2 Forms: Your employer’s EIN is listed in Box B of your W-2 form.
  • Pay Stubs: Some pay stubs might include the employer’s EIN.

5. Business Credit Reports

If your business has established credit, you might be able to find your EIN on business credit reports from agencies like Dun & Bradstreet, Equifax, or Experian.

6. Secretary of State’s Website

In some states, the Secretary of State’s website allows you to look up businesses and their registered details, which might include the EIN. This is more common for non-profits and publicly listed companies.

Steps for Contacting the IRS

  1. Call the IRS at 800-829-4933.
  2. Select the option to speak with a representative.
  3. Provide the required identification information, such as your name, Social Security Number, or any previous tax return details.

Security and Privacy

Be cautious when using third-party services to look up EINs, as sharing sensitive information online can lead to security risks. Always ensure you use reputable and secure websites.


  • Check your business records and documents.
  • Contact the IRS directly.
  • Use third-party services cautiously.
  • Find EIN on employer-provided forms if looking for employer’s EIN.

If you still face difficulties, consider consulting with a tax professional or accountant who can provide guidance based on your specific situation.