How to Fax the IRS — Send IRS Forms by Fax Online

The IRS accepts many tax forms and documents by fax. Whether you're applying for an EIN, authorizing a representative, or submitting other paperwork, faxing your forms directly to the IRS is a fast and reliable option. Common forms that taxpayers fax include the SS-4 (EIN application), Form 8821 (tax information authorization), Form 2848 (power of attorney), and various other documents.

IRS Fax Numbers

The IRS uses different fax numbers depending on the form you're submitting and your location. The correct fax number is listed in the instructions for each specific form on IRS.gov. Always check the form instructions before sending, as fax numbers can change.

Which IRS Forms Can Be Faxed?

Not all IRS forms can be submitted by fax, but many common ones can. Check the instructions for your specific form to confirm. Commonly faxed forms include:

Form SS-4 — Application for Employer Identification Number (EIN)
Form 8821 — Tax Information Authorization
Form 2848 — Power of Attorney and Declaration of Representative
Determination letter requests — Various applications for tax-exempt status and rulings

Not all forms can be faxed. Always check the form instructions on IRS.gov to confirm whether fax submission is accepted.

Form 1040 and other tax returns cannot be faxed. The IRS requires individual income tax returns to be e-filed or mailed. Fax submission is only available for forms whose instructions explicitly list a fax number, such as the SS-4, 8821, and 2848 above, or when responding to an IRS notice that provides a fax number.

How to Fax to the IRS Online

Find the correct IRS fax number from the form instructions on IRS.gov.
Complete and save your form as a PDF, or take a clear photo of the signed document.
Go to www.perpagefax.com.
Upload your completed form.
Enter the IRS fax number.
Pay $0.50/page — most IRS forms are 1–2 pages, so your total is typically $0.50–$1.00.
Track delivery on the live status page and save the confirmation for your records.

How Long Does It Take?

The fax itself is delivered within minutes after you send it. You can track delivery in real time on the live status page and get confirmation once the IRS machine receives your document.

IRS processing times vary. A faxed Form SS-4 (EIN application) is typically processed within 4 business days. Other forms may take longer depending on IRS workload. Always check the form instructions for estimated processing times.

Tips for Faxing to the IRS

Make sure your form is complete and signed before faxing.
Use a clear, legible scan or photo — blurry documents may be rejected.
Keep the delivery confirmation as proof of submission.
Some forms require original wet signatures — check whether faxed copies are accepted for your specific form.

Frequently Asked Questions

Can I fax forms to the IRS?

Yes. The IRS accepts many tax forms and documents by fax, including Form SS-4 (EIN application), Form 8821 (Tax Information Authorization), and Form 2848 (Power of Attorney). Always check the instructions for your specific form on IRS.gov to confirm fax submission is accepted.

Can I fax my tax return (Form 1040) to the IRS?

No. The IRS does not accept Form 1040 or other individual income tax returns by fax. Tax returns must be e-filed or mailed. Fax submission is only available for forms whose instructions explicitly list a fax number, such as Form SS-4, Form 8821, and Form 2848, or when responding to an IRS notice that provides a fax number.

How long does it take the IRS to process a faxed form?

The fax itself is delivered within minutes. IRS processing times vary by form type and workload. For example, a faxed SS-4 (EIN application) is typically processed within 4 business days. Check the instructions for your specific form for processing time estimates.

How much does it cost to fax the IRS online?

With PerPageFax, it costs $0.50 per page with no account required. Most common IRS forms (SS-4, 8821, 2848) are 1–2 pages, so your total is typically $0.50–$1.00. There are no subscription fees or monthly minimums.

Sources

IRS: Get an Employer Identification Number — Confirms SS-4 can be submitted by fax.
IRS: About Form 2848 — Power of Attorney; accepted by fax to IRS.
IRS: About Form 8821 — Tax Information Authorization; accepted by fax to IRS.
IRS: Forms, Instructions, and Publications — Always check current form instructions for the correct fax number before sending.

How to Fax Forms to the IRS