Free tool
EIN, ITIN or both?
A short check based on the IRS rules for your company's US tax number (EIN) and your personal tax number (ITIN). Up to six questions; your answers stay in your browser.
The tools run in your browser: what you enter is not sent to our servers and is not stored.
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- Your EIN and ITIN needs in six questions
- The SSN, tax return and ITIN expiry rules
- An IRS source for every result
Your account is only for access; what you enter in the tool is not sent to our servers.
Frequently asked questions
What is the difference between an EIN and an ITIN?
An EIN is the 9-digit tax number of a company (and some businesses); an ITIN is a personal number issued, for federal tax purposes only, to people who are not eligible for an SSN. One cannot replace the other.
Do I need an ITIN to get an EIN?
No. A responsible party with no SSN or ITIN, who is not eligible for one, enters 'Foreign' on the SS-4; applicants outside the US apply by phone, fax or mail (IRS).
When do I apply for an ITIN?
When you have a federal tax purpose: usually with Form W-7 together with a federal tax return; some exceptions need no return (IRS).
Does an ITIN expire?
Yes. If it is not used on a federal tax return for 3 consecutive tax years, it expires on December 31 of the third year; if it will be used on a return, it is renewed with Form W-7.
Is the result definitive?
No; it is general guidance based on the IRS rules. The IRS issues the numbers and reviews the applications; let us confirm your situation in a free intro call.
Official sources
- IRS — Do you need an EIN?
- IRS — Get an employer identification number
- IRS — Instructions for Form SS-4
- IRS — Instructions for Form 5472
- IRS — Individual taxpayer identification number (ITIN)
- IRS — How to renew an ITIN
- IRS — Instructions for Form W-7
- IRS — Taxation of nonresident aliens
Rules verified on:
The tools give general information, not legal, tax or accounting advice. Rules change; check the official sources for the latest position or talk to us.
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