Fax IRS Form SS-4 for Your EIN
Get your Employer Identification Number (EIN) faster by faxing Form SS-4 directly to the IRS. Free, instant, no account needed.
Why Fax Form SS-4?
Faxing Form SS-4 to the IRS is the fastest way to get your EIN — you'll typically receive it within 4 business days. Mailing the form can take 4-6 weeks. The IRS fax number for EIN applications is (855) 641-6935.
How to Fax Form SS-4 with SimpleFax
Download and fill out IRS Form SS-4, save it as a PDF or take a photo. Upload it here, enter the IRS fax number (855) 641-6935, and send. We'll add a professional cover page and email you a delivery confirmation.
Tips for a Successful SS-4 Fax
Make sure all fields are filled out completely and legibly. Double-check the Responsible Party's SSN or ITIN. Use our high-quality fax setting to ensure the IRS can read every detail. Keep your delivery confirmation as proof of filing.
Frequently Asked Questions
What is the IRS fax number for Form SS-4?
The IRS fax number for EIN applications (Form SS-4) is (855) 641-6935. This is a toll-free number.
How long does it take to get an EIN after faxing?
Typically 4 business days when you fax Form SS-4. This is much faster than the 4-6 weeks it takes by mail.
Can I fax Form SS-4 for free?
Yes! SimpleFax lets you send 2 free faxes per day. Form SS-4 is usually 1 page, well within the free limit.