What is the fax number for IRS — Form SS-4 (Apply for EIN)?

The commonly listed fax line for IRS — Form SS-4 (Apply for EIN) (IRS EIN International / Fax Applications) is (855) 641-6935. Always confirm on the institution’s latest instructions before you send — numbers can change.

How do I fax to IRS — Form SS-4 (Apply for EIN) online without a fax machine?

Open the send form on this page (number is pre-filled), upload a PDF or image, pay, and RonFax transmits the fax for you. You’ll get a status page and email confirmation when delivery completes.

How much does it cost to send a fax to IRS — Form SS-4 (Apply for EIN)?

RonFax is pay-as-you-go: $1.99 covers up to 3 pages, then $0.50 per extra page. No monthly plan required.

What should I include when faxing IRS — Form SS-4 (Apply for EIN)?

Typical packets include: Signed Form SS-4; Legal business name and address; Reason for applying and entity type; Cover letter with contact email and phone. Use a cover page if the institution asks for a subject or routing note.

Is this an official IRS — Form SS-4 (Apply for EIN) page?

No — this is an independent send guide from RonFax. We help you transmit documents to the listed number; we are not affiliated with IRS — Form SS-4 (Apply for EIN). Verify requirements on their official site when unsure.

How to send a fax to IRS — Form SS-4 (Apply for EIN) ((855) 641-6935)

Send fax now

Opens the send form with this number prefilled ($1.99 for up to 3 pages).

For a legal residence or principal place of business in a U.S. state or D.C., the current IRS Form SS-4 instructions list (855) 641-6935. Confirm the applicable IRS instructions before sending your SS-4 PDF online.

Steps

Click Send fax now—your browser opens RonFax with (855) 641-6935 in the recipient field (country code +1).
Upload a PDF or image (max 8 MB). Word files must be exported to PDF first.
Enter your name and email, review the price (from $1.99 for up to 3 pages), pay securely, and submit. Track status on the page we provide after checkout.

Full destination guide — fax line details and optional letter template.