What is a virtual fax number?

A virtual fax number is a dedicated fax number that receives incoming faxes digitally. Instead of printing on a fax machine, incoming documents are delivered as files you can view and save.

Can I use an Onetime Fax virtual fax number for an IRS EIN?

Yes. If you are faxing Form SS-4 and want the IRS to fax the EIN response back, get your virtual fax number first and put that number on the form before sending it.

Do I need a fax machine?

No. A virtual fax number lets you receive faxes online, so you do not need a phone line, fax machine, toner, paper, or a shared office fax tray.

What if I only need to send a fax?

Use one-time sending instead. A virtual fax number is for receiving faxes; the send flow is best when you only need to transmit a document once.

Receive Fax

Get a virtual fax number to receive faxes online

Use an Onetime Fax number for IRS forms, business paperwork, bank requests, and any situation where someone needs to fax documents back to you.

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Built for private fax receiving

A virtual fax number gives you a dedicated place to receive faxes as digital documents, without a fax machine or shared office tray.

Dedicated Fax Number

Get your own fax number to share with banks, doctors, tax agencies, vendors, and business contacts.

Fax to Email

Incoming faxes are converted to PDF and sent directly to your email inbox.

Privacy first

We don't collect information we don't need. And we delete all of it as soon as your fax is delivered.

Mobile and desktop ready

Works on your desktop, works on your phone without an app.

Common reasons to get a virtual fax number

Use a receive number when someone else needs to send documents back to you. That is different from one-time sending, where you only need to transmit a document out.

IRS and EIN paperwork

Put your virtual fax number on Form SS-4 when you want the IRS to fax an EIN response back to a private digital inbox.

Receive an EIN by fax

Banks and business forms

Use a dedicated fax number for account opening, verification requests, vendor forms, and documents that still move by fax.

Fax legal documents

Government agencies

Give agencies a stable fax number when a return document, notice, or confirmation needs to come back to you.

Fax the IRS

Remote and international owners

Receive US faxed documents while traveling, living abroad, or running a business without a physical fax line.

Fax numbers for expats

Virtual fax number for IRS EIN applications

If you fax Form SS-4 to apply for an EIN, the IRS can fax the EIN response back when you provide a fax number. An Onetime Fax virtual fax number gives you a private return number before you send the application.

The practical order is simple: get the receive number, put it on Form SS-4, fax the completed form to the current IRS number, then watch for the inbound EIN response as a digital document.

Get a fax number Read the EIN guide

When a receive number makes sense

You need a return fax number for Form SS-4.
You do not want tax or bank documents going to a public fax machine.
You are remote, traveling, or outside the United States.
You want a PDF copy you can save with business records.

Virtual fax number FAQ

What is a virtual fax number?: A virtual fax number is a dedicated fax number that receives incoming faxes digitally. Instead of printing on a fax machine, incoming documents are delivered as files you can view and save.
Can I use an Onetime Fax virtual fax number for an IRS EIN?: Yes. If you are faxing Form SS-4 and want the IRS to fax the EIN response back, get your virtual fax number first and put that number on the form before sending it.
Do I need a fax machine?: No. A virtual fax number lets you receive faxes online, so you do not need a phone line, fax machine, toner, paper, or a shared office fax tray.
What if I only need to send a fax?: Use one-time sending instead. A virtual fax number is for receiving faxes; the send flow is best when you only need to transmit a document once.