If you’re asking “how do I find my EIN?”, you’re likely dealing with a business need—such as filing taxes, opening a bank account, or applying for a loan. The Employer Identification Number (EIN), also known as a Federal Tax ID, is a unique number issued by the IRS for your business.
1. Check Your EIN Confirmation Letter
When you first applied for an EIN, the IRS sent you an EIN Confirmation Letter (CP 575). This letter clearly lists your EIN and is often used for official documentation.
2. Search Business Tax Filings
Your EIN appears on most federal tax forms, such as:
- Form 1120 (corporate tax return)
- Form 1065 (partnership return)
- Form 941 or 940 (payroll tax forms)
- Any W-2 or 1099 forms issued
3. Check Business Banking Documents
Your EIN is usually listed on the documents used to open a business bank account or within your online banking dashboard under your account details.
4. Contact the IRS Directly
Still can’t find it? Call the IRS Business & Specialty Tax Line at 800-829-4933 (Monday–Friday, 7 a.m.–7 p.m. local time).
Be prepared to verify your identity—you must be the owner or authorized party.
5. Look at State Registration or Business Licenses
Your EIN may also be listed on:
- State business registration forms
- Local business licenses or permits
- Payroll or accounting software records
Final Thoughts
Whether you’re filing taxes or setting up payroll, your EIN is essential. If you’re still asking “how do I find my EIN?”, start by checking your IRS letters or business tax records. If all else fails, the IRS is your best resource.
