What is the IRS fax number?

The correct fax number depends on the form and your location. Always use the number printed in your specific form instructions or on the IRS notice you received — there is no single IRS fax number.

Will I get proof the IRS received my fax?

We email you a delivery confirmation with a timestamp once the fax transmits successfully. Keep it with your tax records as proof of the send.

How much does it cost to fax the IRS?

A single fax of up to 10 pages costs $3 with no account required. If you send faxes regularly, a 10-credit bundle is $20 ($2 per fax).

Is it safe to fax tax documents online?

Every fax is encrypted in transit with TLS, and uploaded files are deleted after sending.

Can I fax my tax return to the IRS?

No. The IRS does not accept original Form 1040, 1040-X, 941, 940, or 1120 returns by fax — those must be e-filed or mailed. Fax is accepted for specific forms such as SS-4, 2553, 2848, and 8821, and for responses to notices like the CP2000.

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

Faxing removes mail transit time but does not move you up the processing queue. CAF authorizations (Forms 2848 and 8821) still typically take several weeks. A faxed Form SS-4 usually comes back with an assigned EIN in about four business days.

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In short

To fax the IRS online with Faxit: upload your form (PDF, Word, or a photo), enter the specific IRS fax number printed in your form instructions or IRS notice, and pay $3. Delivery is typically 1–3 minutes, up to 10 pages per fax, and you receive a timestamped email confirmation. There is no single IRS fax number — the correct one depends on the form and your state.

The IRS still accepts many forms by fax, and for time-sensitive filings a fax gives you a dated transmission record that mailing does not. But almost nobody owns a fax machine anymore.

Faxit lets you fax the IRS directly from your browser. Upload your document, enter the correct IRS fax number for your form, and pay $3. We transmit it and email you a delivery confirmation you can keep for your records.

How to fax documents to the irs online

Upload your IRS document

Drag in your PDF, Word doc, or a photo of the form. Up to 10 pages per fax.

Enter the IRS fax number

Use the official fax number printed in your form instructions or IRS notice. Include the country code (+1).

Pay $3 and send

Pay securely with card. We fax it and email you a timestamped confirmation when it is delivered.

At a glance

Price per fax: $3 for up to 10 pages
Bundle: 10 credits for $20 ($2 per fax)
Delivery time: Typically 1–3 minutes
Accepted formats: PDF, Word (.doc/.docx), JPG, PNG
Confirmation: Timestamped email when delivered
IRS fax number: Varies by form — use the number in your form instructions or IRS notice

Common IRS documents people fax

Form 2553 (S-corporation election)
Form 8821 / 2848 (authorization & power of attorney)
Responses to IRS notices (CP2000, audit letters)
Amended returns and supporting documents
Identity-verification documents

Which IRS fax number should you use?

There is no single IRS fax number. The IRS routes incoming faxes by form, and for most forms by the state the taxpayer or business files from. Sending a form to the wrong campus does not usually get it rejected outright — it gets forwarded, or it sits, and you lose weeks you did not budget for.

The three splits that matter most: Forms 2848 and 8821 go to a Centralized Authorization File unit in Memphis or Ogden. Form SS-4 goes to a single number for the 50 states and D.C. Form 2553 goes to a Kansas City or Ogden service center — and that split is not the same as the CAF split, which is the single most common mistake we see people make.

Form	Purpose	Fax number
Form 2848	Power of attorney	855-214-7519 (Memphis) or 855-214-7522 (Ogden)
Form 8821	Tax information authorization	Same CAF numbers as Form 2848
Form SS-4	EIN application	855-641-6935 (50 states + D.C.)
Form 2553	S-corp election	855-887-7734 (east) or 855-214-7520 (west)
CP2000 response	Under-reporter notice reply	The campus printed on your notice

See the full IRS fax number directory by state

What you cannot fax to the IRS

Faxing a document the IRS does not accept by fax is not filing it. The transmission succeeds, you get a confirmation, and nothing has been filed — which is a genuinely expensive way to miss a deadline.

Original returns cannot be faxed. That covers Form 1040, amended returns on Form 1040-X, employment tax returns on Form 941 and Form 940, corporate returns on Form 1120, and adjusted employment returns on Form 941-X. All of those must be e-filed or mailed to the address in the form instructions.

Never fax a payment. Do not put a check image or card number on a fax to the IRS. Use IRS Direct Pay, EFTPS, or the payment options listed on IRS.gov.

Signatures on faxed IRS forms

For Form 2848, the IRS requires a handwritten wet-ink signature. A typed name, a cursive font, or a signature drawn in a PDF reader is not accepted and the authorization will be rejected. Print the form, sign it by hand, then scan it or photograph the signed page and upload that.

A phone photo is fine as long as the whole page is in frame, the text is in focus, and the lighting is even. Fax transmits in black and white at low resolution, so a shadowed or angled photo can arrive unreadable. If you are photographing rather than scanning, lay the page flat and shoot straight down.

For Form 2553, every shareholder must sign the consent statement before you send it. A 2553 that arrives with a missing consent gets bounced back, and by then you may have missed the election window.

Why a fax confirmation matters for deadline-driven filings

The IRS does not send an acknowledgement for most faxed forms. Your own transmission record is the evidence you retain, which makes it worth keeping properly rather than as a screenshot you lose in six months.

Two situations where this genuinely matters: a Form 2553 S-corp election, which must be filed no later than two months and 15 days after the start of the tax year it takes effect; and a CP2000 response, which typically carries a 30-day deadline from the notice date. In both cases a timestamped confirmation showing you transmitted before the cutoff is the cleanest answer if the IRS later questions timeliness.

Faxit emails you a delivery confirmation with a timestamp once the transmission completes. Save it with your copy of the form.

Frequently asked questions

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