Delaware LLC EIN without an SSN: Form SS-4 walkthrough for non-residents (2026)

Why non-residents cannot use the online EIN application

The IRS online EIN application at irs.gov requires the responsible party to enter a valid SSN or ITIN. Non- residents without an SSN cannot complete the online flow: the system rejects the application at the SSN field. The IRS does not currently provide an online path for non- residents without US tax-identification numbers, despite repeated requests from the formation-service community.

The alternative is Form SS-4, submitted to the IRS by fax or by mail to the international EIN unit. The IRS does not currently accept Form SS-4 by email or by online upload. Fax is the right default for non- residents: turnaround is typically 1-2 business days for a complete application. Mail submissions take 4-6 weeks because the international EIN unit processes paper mail in batches.

Calling the IRS international line (the international EIN phone number) is occasionally faster but requires the responsible party to be available during US business hours (typically 6 AM to 11 AM US Eastern, which is late evening in Bangladesh and India). Phone applications also require the agent to read out every Form SS-4 field verbally, which is error-prone when the founder's first language is not English.

What an EIN actually is and why you need one

The EIN (Employer Identification Number) is a 9-digit federal tax identifier assigned by the IRS to business entities. Format: XX-XXXXXXX. It is permanent and does not need renewal. You use it on every federal tax filing, on Form 5472 each year, on bank account applications, on Stripe and payment processor signups, and on contracts where US counterparties need to identify your business for tax purposes.

Without an EIN, you cannot:

• Open a US business bank account. Banks require the EIN before they will open the account.
• Set up a Stripe account for the LLC. Stripe's KYC requires the EIN.
• Register on Amazon Seller Central, Etsy, or most other US marketplaces as a business.
• File the LLC's federal tax returns (Form 5472, Form 1120, Form 1065, or Form 1040-Schedule C depending on structure).
• Issue W-9s to US clients who request them for 1099 reporting.

The EIN is therefore the practical bottleneck between forming the LLC and operating it. Delewarellc handles the Form SS-4 process during Days 6-8 of the 8-10 day timeline because everything downstream (banking, Stripe, marketplace registration) depends on it.

How to fill in Form SS-4 as a non-resident

Line-by-line walkthrough of the fields that matter for a non-resident applicant. Download the current Form SS-4 from irs.gov/forms-pubs/about-form-ss-4 (the form is updated annually; the field numbers below match the 2026 revision):

• Line 1, Legal name of entity: Your Delaware LLC's exact legal name as filed on the Certificate of Formation, including the LLC or L.L.C. ending. Match it character-for-character; even a missing comma triggers manual review.
• Line 2, Trade name (DBA): Leave blank unless you operate under a different trade name.
• Line 3, Executor, administrator, trustee: Leave blank for a standard non-resident LLC formation.
• Line 4a, Mailing address: Your home address abroad. Some applicants use the registered agent address; both work, but using your own address is cleaner for IRS correspondence.
• Line 4b, City, state, ZIP: Your home address abroad with the foreign postal code.
• Line 5a-b, Street address if different: Leave blank if same as mailing address.
• Line 6, County and state of LLC: "Delaware" for both county-line and state.
• Line 7a, Name of responsible party: Your full legal name as it appears on your passport.
• Line 7b, SSN, ITIN, or EIN of responsible party: Write the literal word "Foreign". Do not write your passport number. Do not write zeros. Do not leave blank.
• Line 8a, Is this application for a limited liability company?: Yes.
• Line 8b, Number of LLC members: 1 for a single-member LLC, 2 or more for multi-member.
• Line 8c, Was the LLC organized in the United States?: Yes.
• Line 9a, Type of entity: Check "Other" and write "Disregarded entity" for single-member LLCs (default federal tax treatment). For multi-member, check "Partnership".
• Line 10, Reason for applying: Check "Started new business" or "Banking purpose" depending on immediate need. "Banking purpose" is fine if you are forming the LLC primarily to open a US bank account.
• Line 11, Date business started: The date your Delaware Certificate of Formation was filed (state stamp date).
• Line 12, Closing month of accounting year: December for calendar-year filers (the default).
• Line 13, Highest number of employees expected in next 12 months: 0 for most non-resident LLCs without US employees.
• Lines 14-15, Employment tax filing: Leave blank if no US employees.
• Line 16, Principal activity: Brief description of what the LLC does (e.g., "E-commerce", "Software development", "Consulting services").
• Line 17, Principal product or service: A more specific description.
• Line 18, Signature, title, date: The responsible party signs and dates. The title is usually "Sole Member" or "Member-Manager".

Where to fax and what to expect

The IRS international EIN fax number is published at irs.gov. The current number for applications from outside the United States is +1-855-215-1627, but the number changes periodically; verify before sending against the official IRS Form SS-4 instructions on irs.gov. Send the signed Form SS-4 as a single PDF fax transmission.

Include a cover sheet with:

• Your name and the LLC name.
• The return fax number where you want the EIN sent.
• An optional return email address.
• A short note: "Form SS-4 application for Delaware LLC. Non-resident, no SSN, no ITIN. Please fax EIN confirmation back to the number above."

The IRS responds by fax with a CP 575 letter (the EIN confirmation letter). Average turnaround when the form is filled correctly is 1-2 business days. If the IRS finds any error or ambiguity, they will fax back a rejection or a request for clarification, which typically adds 1-2 weeks before a corrected re-submission succeeds.

Delewarellc has a verified return fax setup. The EIN confirmation comes directly to us and we forward to you the same day it arrives. Days 1-2 KYC and payment. Days 3-5 Delaware filing. Days 6-8 EIN. Days 9-10 bank applications.

What if you do not have access to a fax machine

Most people in 2026 do not have a fax machine. Use an online fax service:

• HelloFax, eFax, FaxBurner: Web-based fax services. Pay-per-fax or low monthly subscription. Most have free trial credit sufficient for one IRS fax.
• RingCentral, Grasshopper: Business communication services with fax included.
• Local copy shops: Many copy and print shops still offer fax services for a few dollars per page.

Use a service that provides a confirmation page so you have proof the IRS received the fax. The confirmation is rarely needed but useful if the application is later questioned.

After you receive the EIN

The CP 575 confirmation letter is the official record of your EIN. Save the original PDF and a printed copy. Banks and counterparties may ask for it; some banks specifically require the CP 575 (not just the EIN number) as verification.

The EIN is permanent. You do not renew it. If you ever lose the CP 575, the IRS does not reissue it; instead, you request a 147-C letter, which is an IRS-issued verification of your existing EIN. The 147-C request goes through the IRS Business and Specialty Tax Line.

Use the EIN on:

• All federal tax filings (Form 5472, Form 1120, Form 1065, Form 1040-Schedule C as applicable).
• Bank account applications. Provide the CP 575 with your application package.
• Stripe onboarding. Stripe matches the EIN against IRS records during KYC.
• Amazon Seller Central, Etsy, Shopify Payments, and other US marketplace registrations.
• Vendor and client paperwork. Some US clients require a W-9 with the EIN before they will pay invoices.
• State foreign qualification filings if you ever need to register the LLC in another US state.

EIN versus ITIN: do you need both?

The EIN is the LLC's tax ID. The ITIN (Individual Taxpayer Identification Number) is the owner's personal US tax ID for filing personal tax returns. Most non-resident LLC owners need the EIN but never need an ITIN.

You need an ITIN only if you personally must file a US tax return (Form 1040-NR) showing US-source effectively- connected income. For most non-resident-owned Delaware LLCs with no US physical presence and no US-employee operations, the federal tax filing obligation is Form 5472 + pro forma Form 1120 (handled by a CPA), and you personally do not file a Form 1040-NR. If that is your situation, you do not need an ITIN.

If you do eventually need an ITIN, the application is via IRS Form W-7, with required identification documentation. A Certifying Acceptance Agent (CAA) can certify your passport rather than mailing the original to the IRS. The ITIN application takes 6-12 weeks. The full ITIN walkthrough is on the tax guide.

Common SS-4 rejection scenarios and recovery

• Passport number in SSN field: IRS rejects. Re-fax with "Foreign" in Line 7b. Adds 1-2 weeks.
• LLC name mismatch: IRS rejects because the SS-4 name does not match the Delaware Certificate of Formation. Verify exact spelling and re-fax. Adds 1-2 weeks.
• Wrong entity type on Line 9a: IRS may issue the EIN under the wrong classification, which is correctable but creates Form 5472 / Form 1065 confusion later. Better to get it right the first time.
• Missing signature: IRS rejects. Re-fax with signature. Adds 1-2 weeks.
• Return fax fails: The CP 575 never arrives. Call the IRS Business and Specialty Tax Line and request a 147-C letter to verify the EIN was issued.
• SS-4 silently approved but CP 575 never sent: Sometimes the IRS issues the EIN but the fax-back fails. Call the IRS to confirm. Once confirmed, request a 147-C as your record.

What Delewarellc does on the SS-4

We prepare the Form SS-4 from your formation intake data, cross-check it against the Delaware Certificate of Formation we filed for you, fax it to the IRS international EIN unit, and watch the return fax queue. Delewarellc has a verified return fax setup so the CP 575 comes back directly to us. We forward the EIN and the CP 575 PDF to you the same day it arrives.

If the IRS rejects the application for any reason (incorrect field, missing data), we correct and re-fax without additional charge. The $297 bundle covers EIN preparation including re-submissions.

First-party context cited on this page

Delewarellc's SS-4 workflow is built on customer applications across 40+ countries served, including common rejection patterns specific to each country's passport format and address conventions: Delewarellc averages 8-10 business days from payment to filed Delaware Certificate of Formation. Days 1-2 KYC and payment. Days 3-5 Delaware filing. Days 6-8 EIN. Days 9-10 bank applications. Certificate of Formation filing, $110 Delaware state fee, registered agent Year 1, EIN via Form SS-4, Operating Agreement to 6 Del. C. § 18-101 standards, 4-5 bank applications, WhatsApp support in 5 languages, Form 5472 awareness brief.