An Employer Identification Number (EIN) is a unique nine-digit code assigned by the Internal Revenue Service (IRS) to identify a business for tax purposes. If you've applied for an EIN—whether for a business you're starting, a nonprofit you're founding, or another legitimate reason—you'll want to confirm that the IRS has officially issued it and that the number is correct. Here's how to verify your EIN and understand what the process involves.
An EIN functions as a tax ID for businesses, self-employed individuals, trusts, estates, and organizations. It's separate from your Social Security number and is required by law if you hire employees, operate as certain business structures, or have a federal tax filing obligation.
Why verify? Mistakes during application can result in a mismatched or rejected number. Confirming your EIN ensures that tax filings, business accounts, and regulatory records are linked correctly.
The IRS EIN Assistant (available on irs.gov) is the primary free tool for verification:
This method works best if you applied for your EIN online and have access to the application confirmation details.
If the online tool doesn't work for your situation:
Phone verification: Call the IRS EIN phone line (typically 1-800-829-4933) during business hours and speak with a representative. Have your business name, address, and application details ready.
Mail confirmation: If you received an EIN by mail, the IRS letter itself serves as official verification. Keep it safely stored.
Third-party verification services: Some registered agents and business formation services can verify an EIN for a fee, though this is optional—the free IRS methods are sufficient for most people.
To successfully verify your EIN, gather:
| Information | Why It's Needed |
|---|---|
| Your EIN (9-digit number) | To search the IRS database |
| Business or entity name | Must match the IRS records exactly |
| Date business started or formed | Confirms the entity's timeline |
| Responsible party name or SSN | Identifies the owner or applicant |
| Business address | Links to the registered location |
Accuracy matters—if information doesn't match exactly (including punctuation, abbreviations, or legal entity type), verification may fail.
Name mismatches: If you've changed your business name since applying, the original name on file may not match your current name. The IRS system only reflects what was on the original application.
Incomplete application data: If your original application had errors or missing information, verification may be difficult. Contact the IRS directly to correct the record.
Timing: If you applied very recently (within 1–2 weeks), the number may not yet appear in the IRS database. Verification typically takes a few days to a couple of weeks.
Multiple applications: If you've applied more than once, only the most recent valid application will have an active EIN.
A successful verification confirms:
Verification does not confirm:
Once verified, use your confirmed EIN to:
Store your verification documents (the IRS letter or a screenshot of online confirmation) in a safe place—you may need them for banking, loans, or regulatory filings.
Consider consulting a tax professional, accountant, or business attorney if:
These professionals can access IRS records on your behalf and help resolve discrepancies that the online tools can't address.
