Reference

IRS Fax Number for EIN Guide

Fax Form SS-4 to the IRS at 855-215-1627 to apply for an EIN. Processing takes 4-7 business days. Primary method for non-US residents.

Fax Form SS-4 to 855-215-1627 to apply for an EIN. The IRS processes faxed applications within 4-7 business days. This is the primary EIN application method for non-US residents who cannot use the IRS online tool. The fax number is toll-free within the US. ein.so handles the fax process for $49.

The Number

IRS EIN Fax: 855-215-1627

This is the only fax number for EIN applications. All Form SS-4 submissions go here regardless of your location or entity type. The IRS EIN Operation center in Cincinnati, Ohio processes all faxed forms.

| Detail | Information | |--------|------------| | Fax Number | 855-215-1627 | | Form | SS-4 | | Processing | 4-7 business days | | Cost | $0 (IRS) / $49 (ein.so) | | Available to | All applicants worldwide |

For the complete IRS fax directory, see IRS fax number. For the step-by-step fax guide, see EIN by fax.

What to Include

What to Fax with Form SS-4

Completed Form SS-4 — All 21 fields. Use our SS-4 form guide
Cover page — Your name, entity name, return fax number
Nothing else — No payment, no passport copy, no supporting docs

Non-Resident Tips

| SS-4 Field | Non-Resident Entry | |-----------|-------------------| | Line 7b (SSN/ITIN) | Your passport number | | Line 4 (Address) | Your foreign address | | Line 10 (Reason) | Started new business | | Line 18 (Designee) | ein.so (if using our service) |

See responsible party for Line 7a guidance.

Alternative

Alternatives to Faxing

| Method | Speed | SSN Required? | |--------|-------|---------------| | Online | Instant | Yes | | Fax | 4-7 days | No | | Phone | Same day | No | | Mail | 4-6 weeks | No |

For more: How to get EIN | EIN for non-residents

Apply for your EIN — $49

Frequently Asked Questions

What is the fax number for EIN?

The IRS fax number for EIN applications is 855-215-1627. Fax your completed Form SS-4 to this number. Processing takes 4-7 business days.

Can I fax SS-4 from another country?

Yes. International applicants fax to the same number: 855-215-1627. Use an online fax service or ein.so ($49) to handle the process.

Is faxing for EIN free?

The IRS charges $0. Your cost is only the fax service. ein.so charges $49 and handles everything including Form SS-4 preparation.

What if the fax line is busy?

Try early morning ET (7-9 AM) or late afternoon (4-6 PM). The IRS fax line can be busy during peak hours.

How do I know IRS received my fax?

Your fax service provides a transmission confirmation. If no EIN after 10 business days, call IRS at 800-829-4933.

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