IRS Fax Number
Every Form, Every Number + Send for $2.75
Every IRS form routes to its own fax line, several are split by state, some numbers people share are voice lines, and the IRS sends no receipt. Check the three traps and the directory below, then send for $2.75 flat, up to 45 pages, no subscription.
The IRS uses different fax numbers for different forms and regions, and a form sent to the wrong one is not returned and not processed. Find the correct IRS fax number for your form in the directory below, then send your document online for $2.75 with FaxItOnce, no subscription, no app required.
Three Things That Get an IRS Fax Lost
The wrong unit for your form or state
The IRS routes by form and often by state, and the state split does not follow the Mississippi River. A form sent to the wrong unit is not returned and there is no recall; you usually learn it only from the absence of a response.
A voice line, not a fax line
Many widely shared IRS numbers are voice lines. 800-829-4933 is the IRS Business and Specialty Tax voice line, and no fax sent to it has ever been delivered. Retrying does not fix this.
No receipt from the IRS
The IRS does not acknowledge that a fax arrived. Your proof is the transmission record from the sending side: FaxItOnce records whether the receiving machine accepted the pages and how many went through.
IRS Fax Quick Facts
Most Common IRS Fax
Form SS-4 (EIN Application)
Processing Time by Fax
4 business days (vs. 4 weeks by mail)
FaxItOnce Cost
$2.75 flat, up to 45 pages
Auto-Retry on Busy Lines
Up to 4 retries included
Official IRS Source
The IRS confirms fax submission for Form SS-4 (EIN application) and Form 2553 (S-Corp election). Always verify the correct fax number for your specific form and filing location on IRS.gov.
IRS Fax Numbers by Form
The IRS uses different fax numbers for different forms. Use the directory below to find the correct number for your form. For the state-by-state split on Forms 2553 and 2848, and the official source and check date for each number, see the IRS fax number directory.
| Form | Purpose | Fax Number(s) |
|---|---|---|
| SS-4 | EIN Application | 855-641-6935 |
| 2553 | S-Corp Election | 855-887-7734 (Kansas City, eastern group) 855-214-7520 (Ogden, western group) |
| 2848 | Power of Attorney | 855-214-7519 (Memphis, eastern group) 855-214-7522 (Ogden, western group) |
| 8821 | Tax Info Authorization | 855-214-7519 (East) 855-214-7522 (West) |
| 4506-T | Transcript Request | 855-821-0094 855-298-1145 855-587-9604 |
| 7004 | Extension Request | 855-233-3091 |
| 14039 | Identity Theft Affidavit | 855-807-5720 |
Verify current fax numbers at IRS.gov before sending. Fax numbers may change without notice.
IRS Service Center Fax Numbers (Cincinnati, Ogden, Holtsville)
The IRS routes faxes to three primary service centers depending on your state of residence or filing type. Using the correct IRS fax number for your region prevents misrouted documents and processing delays.
Cincinnati, OH
Eastern US filers. Handles Form 2553 (East), SS-4 (domestic), and entity-classification submissions. Common fax: 855-887-7734.
Ogden, UT
Western US filers. Handles Form 2553 (West), 7004 extensions, and business tax correspondence for states west of the Mississippi. Common fax: 855-214-7520.
Holtsville, NY
Northeast collections, automated underreporter (CP2000) responses, and certain installment-agreement and identity-verification correspondence.
Always confirm the routing for your specific form on IRS.gov, service centers occasionally update their assignments.
How Do I Fax a Form to the IRS?
Upload Your IRS Form
Upload your completed IRS form as a PDF. We accept documents up to 45 pages.
Enter the IRS Fax Number
Enter the correct IRS fax number from the directory above for your specific form.
Pay $2.75 & Send
Secure payment via Stripe. Your fax is sent immediately and you get delivery confirmation.
How Much Does It Cost to Fax to the IRS?
Don't pay $19/month just to fax one form to the IRS. Pay $2.75. Done.
| Service | Cost (5-page IRS form) | Monthly Fee |
|---|---|---|
| FaxItOnce | $2.75 flat | $0 |
| eFax | Included* | $16.99/month |
| UPS / FedEx Store | $5.00-$12.50 | N/A |
* eFax includes pages with a $16.95/month subscription. You pay even if you never fax again.
Can I Fax to the IRS Online?
Yes. The IRS accepts faxes from any fax machine or online fax service. FaxItOnce converts your PDF into a standard fax transmission and sends it directly to the IRS fax number you specify. The IRS cannot tell the difference between a fax sent from a physical machine and one sent online.
Encrypted Upload
Your tax documents are protected during upload and transmission.
Auto-Retry
If the IRS line is busy, we retry up to 4 times automatically.
Delivery Confirmation
Get email confirmation when your fax reaches the IRS.
Free Cover Sheet
Professional cover sheet included with every fax at no extra cost.
Frequently Asked Questions
What is the IRS fax number?
There is no single IRS fax number. The IRS routes by form and often by state: Form SS-4 has its own line, Form 2553 is split between Kansas City and Ogden, Form 2848 between Memphis and Ogden. The directory above lists each one. Check the Where to File page for your specific form before sending, because some widely shared numbers are voice lines, not fax lines.
Why is my fax to the IRS not going through?
The most common reason is that the number is not a fax line. We have dialed numbers customers tried and reached IRS voice lines, including 800-829-4933. The second reason is a retired number carried over from an old article or PDF. Retrying will not fix either one; confirm the current number for your form first.
How many pages can I fax to the IRS?
Up to 45 pages in a single FaxItOnce transmission, for the same flat $2.75. Long documents made of scanned photographs transmit far more slowly than text pages and are more likely to be cut off by the receiving machine, so scan in black and white text mode where you can.
Is there a directory of IRS fax numbers by form and state?
Yes. Our IRS fax number directory at /irs-fax-directory/ lists the number for each form and state group, shows the official IRS page it was read from and the date it was checked, and marks which lines we have dialled to confirm a fax tone answers. It also flags 800-829-4933, which is widely shared as a fax number but answers as a voice line.
Does the IRS send a confirmation receipt when you fax them a form?
No. The IRS does not send an acknowledgement that a fax arrived. What you can get is proof of transmission from the sending side: FaxItOnce records whether the receiving fax machine accepted the pages and how many pages went through, and shows you that result. For Form 2553 the IRS sends a separate acknowledgment letter, typically around 60 days later.
Can I get an IRS tax transcript by fax?
No. The IRS stopped faxing tax transcripts on June 28, 2019, to taxpayers and to third parties including tax professionals, and on July 1, 2019 it removed the third-party mailing option from the Form 4506 series. The change was made because transcripts were being used for identity theft. Transcripts are now obtained through the IRS online account, by mail, or through the Income Verification Express Service for lenders. Source: IRS newsroom, "IRS takes additional steps to protect taxpayer data".
Does the IRS accept a Form 1040 income tax return by fax?
No. Standard income tax returns are not filed by fax. Faxing is used for specific administrative, election and authorization forms, for example SS-4, 2553, 2848 and 8821, and for correspondence the IRS has specifically asked you to fax. File a 1040 electronically or by mail.
How do I fax the IRS without a fax machine or landline?
You do not need either. Upload your completed form as a PDF, enter the IRS fax number for that form, and pay $2.75. The document is transmitted over the telephone network to the IRS fax line from our end, so nothing is required on yours beyond an internet connection.
What happens if I fax my documents to the wrong IRS number?
Nothing is returned to you and there is no recall. The IRS routes forms by type and often by state, so a form sent to the wrong unit may not be processed at all, and you will usually learn this only from the absence of a response. Confirm the number on the IRS Where to File page for your specific form before sending, then send again to the correct number.
Why does the IRS fax number I found not work?
Two common reasons. First, many published IRS numbers are voice lines rather than fax lines, so a fax attempt fails no matter how many times you retry. We have confirmed this by calling numbers customers tried, for example 800-829-4933, which answers as the IRS Business and Specialty Tax voice line. Second, IRS routing changes, so a number from an old article or PDF may be retired. Always check the current Where to File page for your form.
Can I fax Form SS-4 to the IRS?
Yes. The IRS accepts Form SS-4 (EIN Application) by fax; the number depends on whether your business is in one of the 50 states or has no US legal residence, and is listed in the directory above. Processing takes about 4 business days by fax, compared to 4 weeks by mail. Upload your completed SS-4 as a PDF and send it with FaxItOnce for $2.75.
Can I fax Form 2553 to the IRS?
Yes. The IRS accepts Form 2553 (S-Corp Election) by fax. The number depends on your state, Kansas City for the eastern group or Ogden for the western group, and the split does not follow the Mississippi River. Both are in the directory above. Acknowledgment takes about 60 days. FaxItOnce sends your form immediately for $2.75.
How do I find the right IRS fax number?
Use the IRS fax number directory on this page to find the correct number for your specific form. Different forms go to different fax numbers, and some forms have separate numbers for eastern and western states. Always verify on IRS.gov before sending.
Can I fax to the IRS from my phone?
Yes. FaxItOnce works on any device with a web browser, iPhone, Android, tablet, or computer. Upload your PDF, enter the IRS fax number, pay $2.75, and send. No app download required.
Do I get delivery confirmation?
Yes. FaxItOnce provides delivery confirmation via email when your fax is successfully transmitted to the IRS fax number. This confirms the fax was received by the IRS fax machine.
What format does the IRS accept for faxed documents?
The IRS accepts standard fax transmissions. With FaxItOnce, upload your form as a PDF and we convert it to fax format automatically. PDF is the recommended format for clarity and accuracy.
How long does the IRS take to process a faxed form?
Processing times vary by form. Form SS-4 (EIN) takes about 4 business days by fax vs. 4 weeks by mail. Form 2553 (S-Corp election) takes about 60 days for acknowledgment. Always check IRS.gov for current processing times.
Can I fax to the IRS from outside the United States?
Yes. FaxItOnce sends faxes to any US fax number, including IRS numbers, from anywhere in the world. You just need an internet connection.
Is it secure to fax tax documents online?
Yes. FaxItOnce uses encrypted connections to protect your documents during upload and transmission. Your files are automatically deleted from our servers after sending. Fax is also inherently more secure than email for sensitive tax documents.
How much does it cost to fax to the IRS?
FaxItOnce charges a flat $2.75 per fax to any IRS number, up to 45 pages. No per-page fees, no subscriptions. Compare that to $16.99/month for eFax or $1-$2.50 per page at a store.
What IRS forms can I fax?
You can fax any IRS form that the IRS accepts by fax, including SS-4, 2553, 2848, 8821, 4506-T, 7004, 14039, and more. Check the fax number directory on this page for specific numbers.
Do I need a cover sheet when faxing to the IRS?
The IRS does not require a cover sheet for most forms, but it is recommended. FaxItOnce includes a free professional cover sheet with every fax.
What if the IRS fax number is busy?
FaxItOnce automatically retries your fax up to 4 times if the line is busy. IRS fax lines can be busy during peak tax season, but our retry system handles this for you.
Send Your IRS Form in Minutes
Upload your PDF, enter the IRS fax number, pay $2.75. That's it. No subscription, no per-page fees, no trip to the store.
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