Introduction
If you’re asking, “What is my Employer Identification Number?”, you’re not alone. Whether you’re filing taxes, opening a business bank account, or applying for licenses, knowing your EIN is essential. This article explains what it is, why you need it, and how to find it.
What Is an Employer Identification Number (EIN)?
An Employer Identification Number (EIN) is a unique nine-digit number issued by the IRS to identify a business entity. Think of it as a Social Security Number (SSN) for your business. It’s also known as a Federal Tax Identification Number.
Who Needs an EIN?
You need an EIN if:
- You operate a business as an LLC, corporation, or partnership
- You have employees
- You manage a trust or estate
- You file employment or excise taxes
- You open a business bank account or apply for credit
Where Can I Find My EIN?
If you’re wondering “What is my employer identification number?”, here’s where to look:
- IRS EIN Confirmation Letter (CP 575) – Issued when you first register
- Previous Tax Returns – EIN appears on forms like the 941 or 1120
- Business Licenses or Bank Documents – Often display your EIN
- Payroll Documents – EIN is listed on W-2s or payroll filings
- Online IRS EIN Lookup – For publicly registered businesses only
Lost your EIN? Call the IRS Business & Specialty Tax Line at 800-829-4933.
Do Sole Proprietors Have EINs?
Not always. If you’re a sole proprietor with no employees, you may use your Social Security Number. However, getting an EIN is still recommended to separate your personal and business finances.
Why Is Your EIN Important?
- Filing federal and state taxes
- Opening business bank accounts
- Hiring employees legally
- Establishing business credit
- Applying for licenses and permits
Conclusion
If you’re wondering “What is my employer identification number?”, it’s the IRS-issued number that officially identifies your business. Keep it secure and accessible—your EIN is critical for compliance, taxes, and business growth.