Federal Tax ID Lookup
Find your existing EIN or get a new one for your business
What Is a Federal Tax ID Number?
A Federal Tax Identification Number (FTIN) is a nine-digit number issued by the IRS to identify a business or entity for tax purposes.
Types of Federal Tax IDs:
Used by businesses, partnerships, trusts, estates, and nonprofits.
The most common TIN for individuals.
Issued to non-resident aliens and others who can't get an SSN.
How to Find Your Existing EIN
If you already have an EIN but lost or forgot it, here are your options:
Check Your IRS Confirmation Letter (CP 575)
The IRS sends this letter when you first received your EIN. This is your official record.
Review Past Tax Returns
Your EIN appears on all filed business tax forms, including Form 1120, 1065, or Schedule C.
Check Bank or Business Records
EINs are often required to open business bank accounts, apply for loans, or set up merchant accounts.
Call the IRS Business Line
Call 800-829-4933, Monday–Friday, 7 a.m.–7 p.m. local time. You'll need to verify your identity as the responsible party.
When Do You Need a NEW EIN?
You may need to apply for a new EIN (not just look up your old one) if:
- • You're starting a new business
- • Your business structure changed (e.g., sole prop to LLC)
- • You incorporated in a new state
- • You're buying an existing business
- • Your corporation received a new charter from the state
How to Verify Another Company's EIN
Unlike your own EIN, finding someone else's isn't always straightforward due to privacy laws:
Public Companies
SEC filings (via EDGAR database) often list EINs. Search for the company's 10-K, 10-Q, or 8-K forms.
Nonprofits
Use the IRS Tax Exempt Organization Search. This tool lists nonprofits' EINs, 501(c) status, and eligibility to receive tax-deductible donations.
Private Companies
- • Request the EIN directly from the company (often on W-9 forms)
- • Check state business license databases
Important Limitations
- • There is no public IRS database to look up EINs of private companies.
- • You cannot look up individual SSNs or ITINs for privacy reasons.
- • Be cautious of scam websites charging for "instant EIN lookups."
Common Questions
Is a Federal Tax ID the same as an EIN?
Yes. The IRS uses "Employer Identification Number (EIN)" and "Federal Tax ID" interchangeably.
How long does it take to get a NEW EIN?
With our service: 24-48 hour estimate for standard processing, or same-day review target with express service. Direct through IRS can take 4-6 weeks by mail.
Do I need a new EIN if I change my business name?
No, a name change alone doesn't require a new EIN. However, if your business structure changes (e.g., from sole proprietorship to LLC), you'll need a new one.
Can I have multiple EINs?
Each separate legal entity needs its own EIN. If you have multiple businesses structured as separate LLCs or corporations, each needs a unique EIN.