EIN Number Lookup: How to Find Your Employer Identification Number
TABLE OF CONTENTS
Looking for an employer identification number you need right now? Your EIN is that nine-digit number the IRS assigned when you registered your business – and it’s required for everything from tax filings to opening business bank accounts.
The EIN acronym stands for Employer Identification Number, though you’ll also see it called a Federal Tax Identification Number (FTIN) or Tax Identification Number (TIN) on forms.
Whether you need an employee identification number lookup for your own business or you’re trying to find your employer’s EIN number for payroll or HR purposes, there are specific places to check and official methods to retrieve it.
Here’s where to look and what steps to take when you need to track down an EIN quickly.
What You’ll Learn
In this guide, you’ll discover:
- Multiple methods to locate your EIN, from checking business documents to contacting the IRS directly
- How to find another company’s EIN for payroll, vendor payments, or business verification
- The specific situations that require an EIN and who needs to obtain one
- Step-by-step instructions for requesting an EIN verification letter from the IRS
- Best practices for keeping your EIN secure and updating your business information
- When and how to cancel an EIN if you close your business
Quick Facts
- EIN is a number given to the majority of businesses, especially those that employ people.
- Two ways to find your EIN number are to either look through the official documentation to see whether it is included somewhere or to contact the IRS directly.
- In order to cancel your EIN, you need to get in touch with the IRS and provide them with a reason for cancellation.
- Best EIN practices come down to keeping your EIN safe, and ensuring that the IRS is updated on changes to your business.
- EIN has several benefits for businesses, including being able to open a business account and build business credit history.
What Is an EIN (Employer Identification Number)?
An EIN (the EIN acronym stands for Employer Identification Number) is a unique nine-digit federal tax identification number assigned by the Internal Revenue Service to identify your business for tax purposes. You might also see it referred to by several other names on different forms and documents.
EIN Quick Facts:
- Assigned by: Internal Revenue Service (IRS)
- Format: Nine digits (XX-XXXXXXX)
- Also known as: Federal Tax Identification Number (FTIN), Tax Identification Number (TIN), Employer ID, or Federal EIN
- Purpose: Identifies your business entity for tax reporting, banking, and official transactions
- Uniqueness: Each EIN is assigned to only one business entity and is never reused
Common EIN Synonyms You’ll See:
- FTIN – Federal Tax Identification Number
- TIN – Tax Identification Number
- Employer ID – Shortened version of Employer Identification Number
- Federal EIN – Emphasizes it’s a federal (not state) identifier
Your EIN can be thought of as similar to a Social Security number, but for business purposes. Just as individuals use SSNs for identification with government agencies and financial institutions, businesses use EINs for the same purposes.
Banks require it to open business accounts, the IRS needs it for tax filings, and payment processors request it when setting up merchant services.
Who Needs an EIN?
The IRS requires an employer identification number for any business that pays wages to employees, regardless of how many people you employ. But you don’t need employees to need an EIN.
Businesses that must have an EIN
All corporations and partnerships, businesses with employees, non-profit organizations, and government agencies.
Schools and educational institutions often use EINs to report wages and taxes, which is why EIN number lookups for school districts are common.
You may also need an EIN if your business:
- Participates in a Keogh retirement plan
- Withholds taxes from payments to non-resident aliens
- Files employment, excise, alcohol, firearms, or tobacco tax returns
- Operates as a farmer’s cooperative, real estate mortgage investment conduit, or certain types of trusts
Even sole proprietors without employees often obtain EINs to keep their Social Security numbers private when dealing with vendors, clients, or banks.
Most financial institutions prefer an EIN over your personal SSN for business accounts, and having one helps establish separate business credit.
Self-employed individuals, single-member LLCs, and other solo business owners aren’t required to get an EIN, but many choose to do so for privacy and professional reasons.
How to Find Your EIN Number
Follow these clear steps to track down your EIN:
Step 1: Check your official documents
- Look through your business licenses, permits, or past tax filings – your EIN is usually listed there.
- If you applied online through the IRS EIN Assistant, check your confirmation email or the PDF notice you downloaded when the number was issued.
Step 2: Review your IRS correspondence
- When you first applied, the IRS mailed you an EIN Assignment Notice. This letter always includes your nine-digit number.
Step 3: Contact the IRS directly
If you can’t find your EIN in your records, call the IRS Business & Specialty Tax Line:
IRS Business & Specialty Tax Line
📞 1-800-829-4933 (toll-free)
🕒 Monday–Friday, 7:00 a.m. to 7:00 p.m. local time
You’ll need to provide identifying information before they release the EIN.
Step 4: Request a verification letter
The IRS can issue a 147C verification letter that confirms your EIN. This is especially useful if you need the number for banking or vendor compliance. Keep both digital and printed copies in a safe place.
How to Find an EIN Number for Another Business or Employer
Need to find another company’s employer identification number for payroll, vendor payments, or business verification? Here are the most reliable methods, starting with the simplest approaches.
Ask the Company Directly
The most straightforward approach is to contact the business directly. HR departments and payroll offices routinely provide EINs for legitimate business purposes:
- Vendor setup and payment processing
- 1099 tax form preparation
- Business verification for contracts
- Banking and financial account setup
Most companies will share their EIN when there’s a valid business reason, though some may ask for your request in writing.
Check W-2 Forms
If you’re a current or former employee, your W-2 tax form is your best resource. The IRS requires employers to include their EIN in Box b of every W-2, making this method 100% reliable for employee identification number lookup purposes.
Use SEC Filings
For publicly traded companies, the Securities and Exchange Commission database provides free access to business registration information. Search the SEC’s EDGAR system at sec.gov, where EINs appear on Forms 10-K, 8-K, and other required filings.
Search Nonprofit EINs via IRS
The IRS maintains a searchable database of tax-exempt organizations at apps.irs.gov/app/eos. This tool lets you find EINs for nonprofits, foundations, and other exempt entities by organization name or location.
Use Business Credit Tools
Commercial credit reporting agencies like Dun & Bradstreet, Experian Business, and Equifax Business maintain databases that often include EIN information along with credit reports and business profiles. Some basic information may be available free, though detailed reports typically require payment.
School EINs
Student financial aid offices can provide school EINs when needed for FAFSA applications, scholarship forms, or tax credits like the American Opportunity Credit. Educational institutions also list their EINs on official transcripts and enrollment verification letters.
How to Cancel Your EIN
To cancel your EIN, send a letter to the IRS with the following information:
Include in your cancellation letter:
- Business legal name and EIN
- Business mailing address
- Reason for closing the business account
- Date business operations ceased
- Your signature and title
Mail the letter to your local IRS office or the address specified in IRS Publication 1635. The IRS does not reuse EIN numbers – once assigned to your business, that nine-digit combination is permanently retired and will never be issued to another entity.
For specific instructions and mailing addresses, visit the IRS EIN cancellation page at irs.gov
EIN Best Practices for Your Business
Protecting your EIN and keeping your business information current with the IRS prevents complications down the road. Here’s how to manage your EIN properly throughout your business’s lifecycle.
Keep Your EIN Safe
Your EIN is sensitive business information that requires the same security measures as other financial data.
Limit access to essential personnel only. Share your EIN only with tax professionals, financial advisors, banks, and vendors who need it for legitimate business purposes. The fewer people who have access, the lower your risk of identity theft or fraud.
Secure physical and digital storage. For physical copies, store EIN documents in a locked filing cabinet or safe. For digital files, use password protection and encrypted storage solutions. Avoid storing your EIN in unsecured emails or cloud folders without proper access controls.
Educate employees and partners about the importance of protecting business identification numbers. Anyone with access should understand proper handling procedures and know to destroy unwanted documents completely rather than simply discarding them.
Update the IRS on Changes
The IRS needs current information to maintain accurate records and ensure proper communication about your business.
Notify the IRS when these changes occur:
- Business address or mailing address changes
- Ownership structure modifications (new partners, ownership percentages)
- Business name changes
- Responsible party changes (the person with control over EIN-related matters)
How to update your information: Complete Form SS-4 with current details and submit it to your regional IRS office. Include supporting documentation like articles of amendment or partnership agreements. You can also update basic information through your IRS online business account.
Follow up to confirm processing. Contact the IRS 4-6 weeks after submitting changes to verify they’ve updated your records correctly.
When You Need a New EIN vs. Updating
Understanding when to get a new EIN versus updating your existing one prevents compliance issues.
Get a new EIN when:
- Changing from being a sole proprietorship to a corporation or a partnership
- Converting from a partnership to a corporation
- Purchasing an existing business (the EIN stays with the seller)
- After bankruptcy discharge
- Creating a new legal entity
Update your existing EIN when:
- Changing business addresses
- Adding or removing business locations
- Modifying business activities within the same entity structure
- Changing responsible parties or ownership percentages in the same entity type
When in doubt, contact the IRS Business & Specialty Tax Line at 1-800-829-4933 for guidance.
Why You Should Have an EIN
Having an EIN provides concrete business advantages that go beyond IRS requirements. Here’s how an employer identification number strengthens your business operations and financial capabilities.
Build Business Credit History
An EIN allows you to establish credit under your business name rather than your personal credit profile. This separation helps you qualify for business loans, equipment financing, and vendor credit terms based on your company’s financial performance rather than your personal credit score.
Open Business Bank Accounts
Most banks require an EIN to open business checking and savings accounts. Using business accounts instead of personal ones provides legal protection, simplifies tax preparation, and creates clear financial records that separate business and personal transactions.
Separate Personal and Business Identity
An EIN protects your Social Security number from exposure to vendors, clients, and service providers. This separation reduces identity theft risk and creates a professional boundary between your personal and business financial affairs.
Essential for Payment Processing Systems
Having an EIN allows for easier setup of payment processing services available to your clients and partners.
If you want to give your customers the option to complete transactions using ACH payments, open a high-risk merchant account due to the nature of your business, or set up a recurring billing payment platform to ensure everything is paid on time, having your EIN on hand streamlines the entire process.
Payment processors typically require an EIN during merchant account setup and onboarding, and having one may qualify you for better processing rates and expanded payment options.
The Bottom Line
If you’ve been wondering, “I don’t know how to find my EIN number,” those days are over. EIN number lookup isn’t as complex as many people think, but knowing your Tax Identification Number is essential for business operations.
Now that you know how to find your EIN number, you’ll never have to worry about tracking it down again. Whether you need to report wages, submit taxes, or require the number for a business transaction, you’re ready for action.
Keep a file or spreadsheet containing your EIN and other information that you require regularly. That way, it will always be at your disposal when you need it for any transaction.
Once you’re EIN-ready, you can focus on finding the right partners for your business operations – and payment processing is one of the most essential parts of that.
At My Payment Savvy, we offer secure, reliable, and easy-to-navigate payment solutions. Whether you’re a small business just starting to grow and want more customizable payment options or a company that has been in business for a while, we customize our services to you, not the other way around.
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