EIN for Non-US Residents: How to Apply Without an SSN

An Employer Identification Number (EIN) is the federal tax identification number the IRS assigns to a business. For an international founder, it is often one of the first practical requirements after forming a US company: banks, payment providers, tax filings, and business documents commonly ask for it.

The important point is simple: a non-US resident can apply for an EIN even without a Social Security number (SSN) or Individual Taxpayer Identification Number (ITIN). The correct application route and an accurately completed Form SS-4 matter more than having a US personal tax number.

This guide explains the process for founders whose principal place of business is outside the United States. It is general information, not individualized tax or legal advice.

What is an EIN?

An EIN is a nine-digit number issued by the IRS to identify a business for federal tax administration. It is sometimes called a federal tax ID.

An EIN is not:

• permission to work in the United States;
• an immigration document;
• a personal tax number;
• proof that a bank or payment provider must approve your application; or
• a replacement for the filings your company may need after formation.

The EIN identifies the business. An SSN or ITIN identifies an individual for different US tax purposes.

Can you get an EIN without an SSN or ITIN?

Yes. The current IRS Instructions for Form SS-4 tell a foreign responsible party who does not have—and is ineligible to obtain—an SSN or ITIN to enter foreign or N/A on line 7b. The responsible party must still be a real individual who ultimately owns, controls, or effectively manages the entity.

Do not list another company as the responsible party merely because it already has an EIN. Except for government entities, the IRS instructions generally require the responsible party to be a natural person.

Having a registered agent or formation address in a US state also does not automatically make the IRS online EIN application available. Eligibility depends on the applicant's actual legal residence, principal place of business, or principal office or agency—not simply the state where the LLC was registered.

When should an international founder apply?

Form the company first, then apply using the exact legal name and formation details shown on the approved state documents. Applying before the state accepts the company can create a mismatch if the name changes or is rejected.

A common sequence is:

1. Choose the state and entity structure.
2. File the company with the state.
3. Receive the approved formation document.
4. Prepare and submit Form SS-4.
5. Save the EIN assignment notice.
6. Use consistent company information for banking, payments, and tax compliance.

If you are still choosing a state, start with Foundlie's US formation overview before submitting an EIN application.

Information to prepare for Form SS-4

Collect the information before you start. The form asks for details including:

• the company's exact legal name;
• any trade name;
• mailing and physical addresses;
• entity type and state of formation;
• formation date;
• the responsible party's full legal name;
• the reason for applying;
• the principal business activity; and
• the tax year closing month.

Use the same spelling and address format across the formation document, SS-4, operating agreement, and later applications whenever the facts are the same. Small inconsistencies can lead to extra verification.

The responsible party

The responsible party is not automatically the registered agent, formation service, accountant, or person who submits the paperwork. It is generally the individual who ultimately owns or controls the company or exercises effective control over it.

For a founder without an SSN or ITIN, line 7b must still contain the entry permitted by the IRS instructions; it should not be left blank.

The business address

Form SS-4 distinguishes between mailing and physical addresses. Use addresses the business is genuinely permitted to use for the stated purpose. A registered-agent address exists for service of process and may not be licensed for ordinary mail, banking, or principal-office use.

Application methods for international founders

The IRS offers different routes depending on where the applicant's principal place of business is located.

1. Telephone for international applicants

An applicant with no legal residence, principal place of business, or principal office or agency in the United States or its territories may call the IRS international EIN line. The current number and operating hours are listed on the IRS EIN page.

The caller must be authorized to receive the EIN and answer questions about Form SS-4. Because phone details can change, confirm the number and hours on IRS.gov on the day you call.

2. Fax Form SS-4

International applicants may fax a signed Form SS-4 to the international fax number listed by the IRS. Include a return fax number if you want the response sent by fax.

The IRS currently publishes separate fax numbers depending on whether the fax is sent from inside or outside the United States. Always verify the number on the official IRS page immediately before sending.

3. Mail Form SS-4

You can mail the signed form to the IRS EIN International Operation. Mail is normally the slowest route, so allow sufficient time and use the current address in the SS-4 instructions.

Can an international founder apply online?

Usually not when the principal place of business is outside the United States. The IRS online application is limited by location and taxpayer-identification requirements. A US registered agent or state registration alone does not override those eligibility rules.

Do not manipulate the address or responsible-party information to force the online application to accept it. Use the international method that matches the real facts.

How long does an EIN take?

Timing depends on the method, application accuracy, and IRS workload. The IRS currently says a domestic fax response may arrive in about four business days and a mailed application in approximately four weeks, while warning that high inventory can cause delays. International processing can vary.

Treat published timings as estimates, not guaranteed delivery dates. Check the current IRS processing information before promising a bank launch, client onboarding, or payment-provider activation date.

How much does an EIN cost?

The IRS does not charge a fee to issue an EIN. You may choose to pay a formation or filing service to prepare and submit the application, but that is a service fee—not an IRS EIN fee.

Be cautious with websites designed to look like government pages. Official IRS pages use the irs.gov domain.

Common EIN mistakes to avoid

Applying more than once

The IRS instructs applicants to use only one application method for each entity. Sending a fax and then mailing or calling immediately can create duplicate applications and confusion.

Applying before formation is approved

If the state rejects or changes the business name after the EIN is assigned, correcting the records takes more work. Use the approved legal name.

Using inconsistent entity details

The company name, suffix, formation date, responsible party, and entity type should agree with the legal documents and intended tax treatment.

Confusing the registered agent with the responsible party

The registered agent receives legal notices. The responsible party controls the entity. They are not interchangeable roles.

Assuming the EIN determines tax classification

Receiving an EIN does not by itself elect S corporation status, turn an LLC into a corporation, or settle how the owner will be taxed. Entity classification and tax elections are separate decisions.

Treating the EIN as the end of compliance

A foreign-owned US single-member LLC may have federal information-reporting obligations even when it owes no US income tax. The IRS Instructions for Form 5472 explain that a foreign-owned US disregarded entity may need to attach Form 5472 to a pro forma Form 1120 when the filing rules apply.

Penalties can be significant, so get advice based on your ownership, activity, transactions, and residence. Foundlie's US LLC tax guide provides an orientation, but it does not replace professional advice.

What happens after the EIN is issued?

Review the assignment notice immediately. Confirm:

• the legal business name;
• the EIN;
• the company address; and
• the entity information shown by the IRS.

Save the notice securely. Banks and payment providers may request an IRS-issued EIN confirmation document, not only the number typed into a form.

Then build a consistent company file containing the formation document, operating agreement, EIN notice, ownership information, business address evidence, and a clear description of the business activity. These records will also help when you open a US business bank account.

Remember that an EIN does not guarantee approval from a bank, Stripe, or another provider. Each provider performs its own identity, business, address, and risk checks.

A practical checklist

Before submitting Form SS-4, confirm that:

• the state has approved the company;
• the legal name matches the formation document exactly;
• the entity type and formation state are correct;
• the responsible party is the individual who actually controls the business;
• line 7b follows the IRS rule applicable to that person;
• the mailing and physical addresses are accurate and permitted for their stated uses;
• the business activity is specific and truthful;
• you selected one application method only; and
• you are using the current IRS phone number, fax number, or mailing address.

Form your company and prepare the EIN correctly

The EIN process is manageable when the company is formed first and every record uses consistent information. Most preventable problems come from rushing the sequence, using an ineligible online route, or copying addresses and responsible-party details without checking what they mean.

Foundlie can help you form the US company, prepare the formation records, and organize the information needed for the next operational steps. Review the available formation packages and pricing, or contact Foundlie if you are unsure which route fits your business.

This article provides general educational information and is not tax, legal, banking, or immigration advice. IRS rules and processing details can change; verify the current instructions or consult a qualified professional for your situation.