Guide

Getting an EIN as an international founder.

You do not need an SSN, an ITIN, a U.S. address, or a U.S. visit to get an EIN for your Delaware C-Corp. You need Form SS-4, a real human responsible party, and the fax, mail, or international phone route — the online tool is the only path closed to you.

How the application actually works

The EIN — Employer Identification Number — is the company's federal tax ID, needed for taxes, banking, payroll, and payment processors. The application is IRS Form SS-4. U.S. residents use the instant online tool; that tool requires the applicant's SSN or ITIN, which is why international founders often believe they're stuck. They aren't: the SS-4 itself accepts "Foreign" in the taxpayer-ID field and travels by fax, mail, or the IRS's international applicants phone line.

The form asks for a responsible party: the individual who controls the entity. That person certifies the application's facts under penalties of perjury — one of the places in formation where a human signature is legally load-bearing, not ceremonial. Software (Corply included) can prefill everything, prepare the authorization for a designee, and track the IRS response; the certification is yours.

Where this fits

The EIN is step seven of the formation sequence — after the certificate is filed, before banking. If your founder stock has vesting, the 83(b) 30-day clock is likely running at the same time; don't let the EIN wait bury it.

Do it from Claude Code

Corply is built for international cofounder teams: it prepares the SS-4 with the right route for founders without an SSN, tracks the response, and keeps the 83(b) clock visible the whole time.

then run /incorporate

FAQ

Can I get an EIN without an SSN or ITIN?
Yes. The IRS's online EIN tool requires an SSN or ITIN, but the underlying application — Form SS-4 — does not. Foreign founders apply by fax or mail, or by the IRS international applicants phone line, writing 'Foreign' where a taxpayer ID is requested.
Who must be the responsible party?
The individual who ultimately owns or controls the entity or exercises effective control — for a startup, normally a founder. It must be a real person (not a company), and the SS-4 carries a penalties-of-perjury declaration, so the facts must be certified by that person, never by software.
How long does it take?
Fax applications typically come back in about four business days to a few weeks; mail takes four weeks or more; the phone route for international applicants can issue the EIN during the call. Timelines shift with IRS workload — plan for the slow case.
Do I need a U.S. address or to visit the U.S.?
No U.S. visit is required, and the company's registered agent address handles Delaware. Banks are a separate matter: opening a U.S. business account triggers identity verification (KYC) that the account owner must complete personally — software can prepare the packet but can't be verified for you.
Can someone apply on my behalf?
A third-party designee can submit the SS-4 and receive the EIN, but only with the responsible party's signed authorization — and that authority ends once the EIN is issued.

This page is general education, not legal or tax advice, and reading it does not create an attorney–client relationship. Corply is operated by 0Lumen Labs Corp., is not a law firm, and routes questions that need individualized judgment to licensed professionals. Rules and fees change — verify current requirements with the State of Delaware, the IRS, or your counsel.