Introduction
If you’re asking “how do I look up a company’s EIN?”, you’re likely handling tax paperwork, business verification, or due diligence. An Employer Identification Number (EIN) is a unique nine-digit code assigned by the IRS to identify a business for tax purposes. Luckily, there are multiple ways to legally find this information.
What Is an EIN and Why Do You Need It?
An EIN (Employer Identification Number), also known as a Federal Tax ID, is required for:
- Filing 1099 or W-9 forms
- Reporting tax information
- Hiring employees
- Opening business bank accounts
- Conducting B2B transactions
Whether you’re a vendor, investor, or business partner, knowing a company’s EIN can help you validate its legal identity.
How Do I Look Up a Company’s EIN?
1. Search SEC Filings (For Public Companies)
Public companies disclose their EINs in forms like 10-K or S-1 filed with the U.S. Securities and Exchange Commission (SEC).
- Visit SEC EDGAR
- Enter the company’s name
- Open a recent 10-K or S-1 filing
- Find the EIN listed near the top
2. Check the Company’s Website
Some businesses list their EINs in their Privacy Policy, Terms & Conditions, or Investor Relations sections.
3. Use State Business Entity Search Tools
State websites sometimes list business registration information. A few examples:
Note: Not all states disclose EINs publicly, but they may confirm entity existence and status.
4. Explore Nonprofit EINs on Public Databases
For nonprofits, EINs are public. Try:
5. Use Commercial EIN Lookup Tools
There are third-party services offering EIN data, such as:
- Manta
- Dun & Bradstreet
- OpenCorporates
- LexisNexis (subscription-based)
These platforms compile business data, but may require fees or account creation.
6. Contact the Company Directly
If you have a business reason, such as issuing a 1099, you can request the EIN directly from the company’s accounting or legal team.
7. Review W-9 or Prior Tax Documents
If you’ve worked with the business before, check any previously exchanged:
- W-9 Forms
- Contracts
- Invoices
- 1099s
Is It Legal to Look Up a Company’s EIN?
Yes — if the EIN is publicly available or provided with consent for a valid business reason. However, using it fraudulently is illegal.
Conclusion
So, how do I look up a company’s EIN? Start with public records like SEC filings, nonprofit databases, or direct communication. Always make sure your use complies with IRS and privacy regulations.
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