Updated
ITIN vs EIN: Which Tax ID Does Your Non-Resident Business Need?
What Exactly Is the Difference Between an ITIN and an EIN?
| Field | ITIN | EIN |
|---|---|---|
| Identifies | A person | A business |
| Form | W-7 | SS-4 |
| Format | 9XX-XX-XXXX | XX-XXXXXXX |
| Processing | 7-11 weeks | Same call (phone) or ~4 days (fax) |
| Used for | Form 1040-NR, treaty benefits, personal banking | Business bank account, payroll, federal filings |
For a deeper side-by-side see the ITIN vs EIN page.
When Does a Non-Resident Entrepreneur Need an EIN?
Any US business entity (LLC, C-Corp, S-Corp where allowed, or partnership) needs an EIN to function. Specifically a non-resident owner needs an EIN to:
- Open a US business bank account in the LLC name
- Hire employees or run US payroll
- File federal returns (Form 1120, 1065, 5472, etc.)
- Issue 1099s to US contractors
- Apply for state-level sales tax or business licenses
When Does the Same Entrepreneur Also Need an ITIN?
- Filing Form 1040-NR to report effectively connected US income
- Claiming reduced withholding under a US tax treaty via Form W-8BEN
- Receiving a Schedule K-1 as a member of a multi-member LLC or partnership
- Opening a personal US bank account in own name (most banks require it)
- Being verified as a beneficial owner by Stripe, PayPal Business, Mercury, or similar platforms
For the LLC-specific path see ITIN for LLC owners.
How Do You Apply for Each One in 2026?
EIN. File Form SS-4. International applicants can call the IRS Business and Specialty Tax Line (267-941-1099) to get the EIN on the same call, or fax the SS-4 to receive the EIN by return fax in about 4 business days.
ITIN. File Form W-7 with a current passport and (in most cases) a federal tax return. A Certifying Acceptance Agent can verify the passport locally so it never leaves the applicant.
Which One Should You Apply for First?
EIN first. The EIN is fast, free, and unblocks LLC formation and banking. The ITIN takes 7 to 11 weeks and is typically filed either with the entrepreneur first US tax return or alongside an exception document such as a bank letter requesting ITIN issuance.
Frequently Asked Questions
Ready to get the ITIN side handled? Apply with a Certifying Acceptance Agent — $297 flat, ready in 7 days.