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IRS Fax Numbers
SS4 Form Fax Number

IRS Form SS4 Fax Numbers: How and Where to Fax a SS4 Form?

IRS Form SS-4 is a standardized application document that organizations use to request a unique federal tax identifier. In essence, it is the gateway document that begins the process of establishing a separate tax identity for your entity.

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What is an IRS Form SS4?

Form SS-4 collects essential information about your business or organization—such as its legal name, address, type of entity, and reason for applying—that the Internal Revenue Service (IRS) uses to issue an Employer Identification Number (EIN). This EIN is used by the IRS to uniquely identify the entity for federal tax purposes and is required when:Filing tax returns (corporate, partnership, etc.).Opening bank accounts or applying for business credit.Hiring employees.Conducting official communications with the IRS and other governmental agencies.

IRS Form SS4 Fax Numbers

  1. 855-641-6935: If the entity’s principal business, office or agency is located in any of the 50 states or District of Columbia (fax to IRS Cincinnati, OH for domestic EIN applications)
  2. ​855-215-1627 within U.S., toll-free
  3. 304-707-9471 outside U.S., direct: If the entity has no legal residence, principal place of business, or principal office in any state/DC (international applicants and U.S. territories)

When faxing, ensure you include a return fax number so that the IRS can send your EIN back to you. Processing typically takes about four business days after submission.

How to Submit an IRS Form by Fax?

When it comes to requesting certain tax forms and documents from the Internal Revenue Service agency, you can order such documents from the IRS through fax by getting a local fax number (or port your currently existing fax number) and add the ability to receive faxes in Fax.Plus. All your submitted documents will be accessible for future references in your fully encrypted Faxes tab.

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How to fax tax forms online from computer?

1
Go to the Send Fax section in your Fax.Plus Dashboard, and type in the fax number of your recipient.
2
Attach your fax document(s) and, if you like, include a cover page.
3
Click on Send to fax instantly and get an email confirmation of successful delivery.
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Fax tax from your mobile?

1
Download and install the Fax.Plus app on your smartphone.
2
Log in to your account or sign up for a free account.
3
Navigate to the Send Fax section and type in the recipient's fax number.
4
Attach the documents you wish to fax and, if you'd like, include a cover page.
5
Click on Send to fax instantly and receive the delivery status via push notification.
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How to send a fax to the IRS with Gmail, Outlook or Yahoo?

1
Ensure you're using the email address registered with Fax.Plus.
2
Compose an email and enter the recipient’s fax number in the To field*.
3
Attach the documents you want to fax.
4
Click on Send to fax immediately and get an email confirmation of successful delivery.
* Write the destination’s fax number (along with the country and area code) followed by @fax.plus (example: +16692001010@fax.plus).
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How to Scan and Fax Documents from Phone?

By using Fax.Plus on your smartphone, your device effectively becomes a portable fax machine. Learn how to scan documents by scanning physical documents directly with your camera, then faxing them instantly—no extra steps required.

1
Download and install Fax.Plus app from the Play Store or  App Store.
2
Launch the app and go to the Send Fax section on the Dashboard.
3
Tap Add File and choose Scan with Camera to start scanning.
‍Note: You may need to grant permission to access the camera.
4
Scan the document, make necessary edits such as cropping or enhancing the image, and tap Next.
5
Enter the recipient's fax number and tap Send.
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Who needs to file an IRS Form SS4?

Any individual or entity that is required to obtain an Employer Identification Number (EIN) must file Form SS-4. This includes, but is not limited to:

  1. Business Entities: Corporations, partnerships, limited liability companies (LLCs), and sole proprietorships that have employees, operate as a corporation or partnership, or meet certain other IRS criteria.
  2. Nonprofit Organizations: Charitable, religious, educational, and other tax-exempt organizations that need an EIN to operate.
  3. Estates and Trusts: For matters of tax administration related to estate and trust income.
  4. Foreign Entities: Any foreign business or organization that is required to file a tax return or engage in certain U.S.-related financial activities.
  5. Other Entities: Entities like government agencies, certain types of organizations, and any other group that is required by law to file a federal tax return.

Why do you need an IRS Form SS4?

The primary purpose of Form SS-4 is to obtain an EIN from the IRS. An EIN functions much like a Social Security Number does for an individual but is used for business or organizational purposes. Here are some specific reasons why obtaining an EIN via Form SS-4 is crucial:

  1. Tax Reporting and Compliance: An EIN is required to file federal tax returns and to report income, employment taxes, and other tax-related information.
  2. Banking and Financial Operations: Most banks and financial institutions require an EIN when opening business bank accounts, applying for credit, or processing financial transactions.
  3. Employment: If you plan to hire employees, having an EIN is a legal requirement for payroll processing, reporting wages, and managing withholding taxes.
  4. Separation of Finances: An EIN helps establish a legal separation between personal and business finances, which is key for liability protection and proper accounting.
  5. Government and Legal Purposes: Many licenses, permits, and other regulatory filings require an EIN as part of the application process.

Related articles and IRS forms

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DISCLAIMER: The information on this site is for general information purposes only, and Fax.Plus cannot guarantee that all the information on this site is current or accurate. This is not intended to be legal, accounting or tax advice and should not be a substitute for professional legal, accounting or tax advice. For legal advice, consult a licensed attorney regarding your specific legal questions.

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