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🇺🇸 How to Fax the IRS: Every Form and Fax Number

📅 Updated November 2026 · 🌍 Send from any country

✦ Quick Answer

Yes, you can fax the IRS, but only certain forms and notice replies, and there is no single IRS fax number. Each form or notice has its own, and the number printed on your notice always comes first. Tax returns, including Form 1040 and 1040-X, cannot be faxed: you e-file or mail them. To send, select United States, type the 10-digit number with no leading 1, upload your pages and pay $2.99 for up to 3 pages. No account, nothing printed on your document, usually delivered within a few minutes, and an automatic refund if it fails.

Send a fax to the IRS, $2.99

Is There One IRS Fax Number?

No. The IRS has no general fax number for "sending documents." Every form that may be faxed has its own number, often more than one depending on your state, and many notices print a fax number of their own. Do not count on a fax sent to the wrong IRS line being passed on: the Form 3911 page, for one, says to send nothing but Form 3911 to its numbers.

So the order is always the same. If you are answering a letter or notice, use the fax number printed on it. If you are filing a form that allows fax, use the number in that form's instructions for your state or situation. If neither gives a fax number, the IRS has not offered fax for that item, and you should mail it or use the online route the form describes.

IRS Fax Numbers by Form and Notice

Every number below comes from the IRS form, its instructions or the IRS page for that form. Each guide gives the full detail: which number applies to you, deadlines, and what to put on the pages.

Form or notice	IRS fax number	Full guide
Form 2553 (S corporation election)	855-887-7734 (Kansas City) or 855-214-7520 (Ogden), by state	Form 2553
Form 2848 and Form 8821 (CAF unit)	855-214-7519 (Memphis) or 855-214-7522 (Ogden), by state. International CAF Team: 855-772-3156, or 304-707-9785 if you dial from outside the US	Form 2848
Form 3911 (refund trace)	One of 11 numbers by state or entity type. Abroad: 855-203-7538 (Austin)	Form 3911
Form 5472 with pro forma Form 1120	855-887-7737	Form 5472
Form SS-4 (EIN)	855-641-6935 (domestic). No US residence or business: 855-215-1627 from within the US, 304-707-9471 from outside the US	Form SS-4
Form 14039 (identity theft affidavit)	855-807-5720	Form 14039
Form 8806 (fax only)	844-249-6232	Form 8806
CP2000 notice response	One of 7 numbers, matched to the location at the top left of the notice	CP2000
Form 911 (Taxpayer Advocate Service)	855-828-2723. Overseas: 304-707-9793	Form 911
International tax account issues	681-247-3101 (international account issues only)	International accounts
Exempt Organizations correspondence	855-204-6184 (EO Determinations)	Exempt Organizations
Letter 12C and Form 8962	The fax number printed on your letter	Letter 12C

The Form 2848 instructions warn that their numbers may change without notice, and the same can happen to any line. If your notice or a current form gives a different number, the notice or form wins.

Send a fax to the IRS, $2.99

Can You Fax a Tax Return to the IRS?

No. The IRS gives no fax route for filing a tax return. Form 1040, Form 1040-X and business returns are e-filed or mailed. The numbers above belong to units that handle other forms, so a faxed return is not a filed return.

The one place a return goes by fax is when it is part of a package the instructions send to a fax line. Form 5472, for example, is faxed together with its pro forma Form 1120 because its instructions say so. The fax route exists only where the IRS wrote one.

The rule: fax the IRS only to a number printed on your notice or in the instructions for the exact form you are sending. No number there means no fax route.

What Cannot Be Faxed to the IRS

These come up most often, and none of them has an IRS fax route:

Form 1040, 1040-X and other returns: e-file or mail. Form 1023 and 1023-EZ: filed only through Pay.gov since January 31, 2020, so a faxed application is not filed. Form 9465: apply online at IRS.gov/OPA if you owe $50,000 or less, or mail it. Form 433-D: no fax route. Form 8822-B: mail only. Form 4506-B: sent through the form's own Submit Form button.

Form W-9 and Form W-8BEN never go to the IRS at all. A W-9 goes to the person or company that asked for it, and many accept it by fax: see faxing a W-9 to a client. A W-8BEN goes to your bank, broker or payer, using only the fax number they give you: see faxing a W-8BEN.

Send a fax to the IRS, $2.99

How to Fax the IRS From Any Country

Every IRS fax number is a US number, so the steps are the same wherever you are. Select United States, then type the 10 digits with no leading 1 and no spaces: 855-887-7734 is entered as 8558877734. Upload your pages as a PDF if you can, up to 10 files and 100MB in one fax, check the price and pay. More on the format is in our guide to faxing a US number.

Start with a cover page: your name exactly as the IRS has it, your taxpayer identification number as the form asks for it, the form or notice number, the tax year, a phone number and email, and a line listing what is attached. Then put your name and identification number at the top of every page, because faxed pages are sorted by hand. Sign forms by hand before scanning: Form 2848 and 8821, for example, can only be submitted online if they were signed electronically.

Deadlines and Your Record of the Fax

Each form has its own deadline, and each guide above gives it. For a notice, the deadline is the date printed on the notice. Treat a fax as needing to arrive by that date, not just leave by it.

This matters because the rule that treats a mailed return as on time by its postmark covers mail, approved private delivery services and e-file. It does not cover fax. What you do get is the confirmation email: it shows the destination number, the page count and the exact time the fax went through, in US Eastern Time. That is your record of exactly when it was sent, so keep it with a copy of what you faxed.

Send a fax to the IRS, $2.99

What It Costs

IRS numbers are US numbers: $2.99 for up to 3 pages, then $0.99 per extra page. A 3-page fax, such as a cover page and a two-page letter, is $2.99. A 10-page notice response with documents is $9.92. You see the price before you pay, there is no account, nothing is printed on your pages, and if the fax cannot be delivered you are refunded automatically.

If a reply could come back by fax, for example after a faxed Form SS-4, our sister service GetAFax.com gives you a US fax number for 24 hours for $5, and faxes arrive in your email.

State Tax Agencies

State tax departments run their own fax lines, separate from the IRS. California's Franchise Tax Board has fax numbers for specific notices: see faxing the California FTB. New York's Department of Taxation and Finance takes conciliation conference requests by fax and prints other fax numbers on its letters: see faxing New York State tax.

Why send it here

One price for the whole fax, shown before you pay, and nothing added at checkout.

Nothing is printed on your document. It arrives exactly as you uploaded it.

If it cannot be delivered, the money goes back to your card without you asking.

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Frequently Asked Questions

Cost and what you get

How much does it cost to fax the IRS from overseas?

$2.99 for up to 3 pages, then $0.99 per extra page, from any country. A 10-page fax to the IRS is $9.92. There is no account or subscription, and you see the price before you pay.

Is there a cheaper way to fax the IRS if I am in the US?

OverseasFax charges $2.99 for up to 3 pages and $0.99 for each extra page, from the US or any other country, with no account, no subscription and nothing added at checkout. Free fax services do exist, but they usually cap the number of pages and print their own advertising on the cover page, which you do not want on an IRS form.

Is there a free way to fax documents to the IRS?

Free fax services exist, but they generally limit the number of pages and add their own advertising to the cover page. For a tax document with a deadline, a paid fax with a delivery confirmation and an automatic refund on failure is the safer choice.

Sending a fax

Can I fax the IRS?

Yes, for specific forms and notice replies that have their own IRS fax number. Examples are Form 2553, 2848, 3911, SS-4, 5472, 8806, 14039 and CP2000 responses. If neither your notice nor the form's instructions give a fax number, the IRS has not offered fax for that item.

Can I fax my tax return to the IRS?

No. The IRS gives no fax route for filing a tax return. You e-file it or mail it. A return sent to an IRS fax line is not a filed return.

Can I fax my 1040 to the IRS instead of mailing it?

No. Form 1040 has no fax route, so you e-file it or mail it to the address in the Form 1040 instructions. A faxed 1040 is not a filed return.

Can I fax Form 1040-X, an amended return, to the IRS?

No. Form 1040-X is filed electronically or by mail, not by fax. If an IRS letter asks you for documents about an amended return and gives a fax number, you can fax those documents to that number.

I'm in Dubai and an IRS letter asks me for documents. Can I fax them?

Yes, if the letter gives a fax number. Select United States, type the 10 digits from the letter with no leading 1, and include a copy of the letter as your first page after the cover sheet. If the letter gives no fax number, reply the way it says, usually by mail.

How do I fax the IRS online without a fax machine?

Upload your PDF or photos at OverseasFax, select United States, enter the IRS number and pay. It runs in any browser on a phone or computer. You get a confirmation email once the IRS machine accepts the fax.

Fax numbers and format

Is there one IRS fax number for all documents?

No. Each form or notice has its own number, and some forms have several numbers depending on your state. Use the number on your notice first, then the one in the form's instructions.

Does the IRS have a fax number for people living abroad?

Yes, 681-247-3101, which the IRS says is for international tax account issues only. Forms such as Form 2848, 3911 or SS-4 have their own international fax numbers, listed in their instructions.

What is the IRS fax number for audits?

There is no general audit fax number. Use the fax number on your examination letter or the one your examiner gives you, and quote the letter's reference details on every page.

What IRS fax number do I use for supporting documents?

The one printed on the notice or letter that asked for them. Do not count on documents sent to an unrelated IRS fax line being passed on to the right unit.

Do I type the 1 before an IRS fax number?

No. Select United States and the country code is added for you. Type the 10 digits only, so 1-855-807-5720 is entered as 8558075720.

Receiving a reply

Will the IRS fax me back?

Rarely, but it can happen: a faxed Form SS-4, for example, generally gets its EIN within 4 business days. If a reply could come by fax and you have no fax line, our sister service GetAFax.com gives you a US fax number for 24 hours for $5, and faxes arrive in your email.

Delivery, proof and safety

Does a fax confirmation prove I met an IRS deadline?

No. The rule that treats a mailed item as on time by its postmark covers mail, approved delivery services and e-file, not fax. Your confirmation email is your record of exactly when the fax was sent, so send well before the deadline.

How long does a fax to the IRS take to arrive?

Usually within a few minutes. When the IRS machine accepts the last page, you get an email with the destination number, the page count and the time in US Eastern Time.

What happens if my fax to the IRS does not go through?

You are refunded automatically. IRS lines are often busy near deadlines, so check the number and try again later in the US working day.

Is it safe to fax my Social Security number to the IRS?

The fax goes point to point to the number you enter, with no account and nothing added to your pages. The real risk is a wrong number, so copy the IRS number digit by digit from your notice or the form's instructions.