Fax numbers guides
A dedicated fax number gives people a way to send documents back to you. Start with choosing a number, setting up receiving, and deciding whether to transfer a number you already use.
Receiving faxesFax numbers
How to receive an IRS 147C letter by fax
Request written confirmation of an existing EIN and prepare a receiving number before you call the IRS.
Sending faxesFax numbers
How to fax Form SS-4 for an EIN
Choose the correct IRS route, prepare a signed SS-4, and include a working return fax number for your EIN application.
Receiving faxesFax numbers
How to get a fax number
Choose an online fax number for receiving documents, sending replies, and sharing access with your team. No phone line or fax machine needed.