How to Fax the IRS
Send your IRS forms from your phone in about two minutes. $2.99 per fax. No account, no subscription.
Send Your Fax NowIf your fax is not delivered, you are not charged.
Why the IRS still asks for faxes
Plenty of IRS workflows still run on fax. Some forms list a fax number right in the official instructions, and IRS agents often ask for documents by fax when you call about a notice. If you just got off the phone and were told to fax something to the IRS, you are in the right place. You do not need a fax machine and you do not need a subscription. You can send it from your phone right now.
What people fax to the IRS
- Form SS-4 (EIN application). Fax filing is a standard option for EIN applications.
- Form 2848 (Power of Attorney) and Form 8821 (Tax Information Authorization). These are commonly submitted to the IRS by fax.
- Responses to IRS notices and letters. When a notice asks for documents, the fastest path is often the fax number printed on the notice itself.
- Identity and dependent verification documents. Some verification requests include a fax option.
Which fax number do I use?
Always use the fax number printed on your IRS notice or in the official IRS instructions for your form. IRS fax numbers vary by form, by location, and over time, so the number on your own paperwork is the only one to trust.
How it works
Take a photo of your documents with your phone camera, or upload from your camera roll.
Add an optional cover page. Fill out one quick form and we take care of the layout and details.
Preview every page. Retake a photo or adjust pages before anything goes out.
Enter the fax number from your IRS notice. We check that the line is valid.
Pay $2.99 and send. If your fax is not delivered, you are not charged.
Why ProntoFax
- Flat $2.99 per delivered fax, no subscription
- No account or sign-up required
- We validate the fax line before you pay
- No charge if your fax does not go through
- Email receipt with a copy of exactly what was sent
- Works in English and Spanish
Questions about faxing the IRS
Can I really fax the IRS from my phone?
Yes. ProntoFax turns your photos or files into a real fax and delivers it over the phone network, the same way a fax machine would. The IRS receives a normal fax.
What fax number should I use for the IRS?
Use the number printed on your IRS notice or in the official instructions for the form you are sending. IRS fax numbers vary by form and location, so the one on your own paperwork is the right one.
Do I need an account?
No. There is nothing to sign up for. You pay $2.99 for the fax you send, and that is it.
What happens if my fax fails?
Your card is only charged after your fax is delivered. If it does not go through, the payment is released and you can try again.
How do I know it was sent?
Once your fax is delivered, we email you a receipt with a copy of exactly what was sent, so you have a record for your files.
How many pages can I send?
Up to 25 pages per fax, including the optional cover page.