IRS Fax Numbers by Form (2026): Where to Fax 2553, SS-4, 2848, 8821 & 4506-T

The IRS is one of the last big institutions that still runs on fax, and for a handful of forms it’s the fastest paper route in. An S corporation election, an EIN for a foreign-owned LLC, a power of attorney for your accountant: fax gets these to the right team the same day, while mail takes weeks.

The catch is that there is no single IRS fax number. Each form goes to its own processing team, and several of them split the country into regions that don’t match each other. Fax Form 2553 from Florida to the number your accountant used for a 2848 and it lands in the wrong queue.

Every number below was checked against the official IRS instructions on September 25, 2026. The IRS says these numbers “may change without notice,” so each section links to its source. Take ten seconds to confirm there before you send anything with a deadline.

IRS fax numbers at a glance

Now the details, including the state tables, because the state tables are where people get it wrong.

Form 2553: S corporation election

What the instructions say that matters when you fax:

• Deadline: no more than 2 months and 15 days after the start of the tax year the election should take effect. This is why most 2553s get faxed: mail eats days you may not have.
• Keep the original. If you file by fax, the IRS tells you to keep the signed original with the corporation’s permanent records.
• Expect an answer in about 60 days. If you haven’t been notified of acceptance or nonacceptance within 2 months (5 months if you checked box Q1), call 800-829-4933.
• Late? Relief is available within 3 years and 75 days of the intended effective date if you have reasonable cause. Write “FILED PURSUANT TO REV. PROC. 2013-30” in the top margin of page 1. See “Relief for Late Elections” in the instructions.

On proof of filing. The public Form 2553 instructions list a certified or registered mail receipt, an IRS-stamped copy, or an IRS acceptance letter as proof. For faxed elections, the IRS’s internal processing manual (IRM 3.13.2.23.3) adds one more: employees are told to accept a fax confirmation as proof of timely submission, after checking that it shows the correct service-center number for the business’s state and a timely date. So route by the table above, and keep the confirmation. Step-by-step in How to Fax Form 2553.

Source: Instructions for Form 2553 · Where to file Form 2553

Form SS-4: applying for an EIN by fax

The IRS calls this the Fax-TIN program. It runs 24 hours a day, 7 days a week, the lines can only be used for EIN applications, and you’ll generally get your EIN back by fax within 4 business days.

Who should fax instead of applying online. The online EIN application is instant, and the IRS recommends it when you can use it. You can’t if the entity has no legal residence or principal place of business in the US or its territories, or if the responsible party has no SSN, ITIN, or EIN. That describes most foreign founders of US LLCs, and it’s exactly who the fax lines are for. (International applicants can also call 267-941-1099, which isn’t toll-free, Monday to Friday, 6 a.m. to 11 p.m. Eastern.) One EIN per responsible party per day, whichever method you use.

The detail everyone misses: you need a fax number to get the EIN back. The instructions say to “be sure to provide your fax number so the IRS can fax the EIN back to you.” If you send from an online service with no receiving number, you have nowhere for the reply to land. You have three options:

• Get a receiving number. A Browserfax plan gives you a dedicated US fax number instantly ($8/month), and the IRS reply arrives in your email with a secure link. See how to get a fax number and fax to email.
• Name a third-party designee on the form, such as your formation agent or accountant, who can receive the EIN.
• Use a fax number you already have access to.

Source: Instructions for Form SS-4 (12/2025)

Forms 2848 and 8821: power of attorney and tax information authorization

Both forms use the same chart:

Don’t reuse the 2553 routing. Alabama, Arkansas, Florida, Louisiana, and Mississippi go to Ogden for Form 2553 but to Memphis for 2848 and 8821. Wisconsin goes the other way. It’s the single most common mix-up on this list.

Three rules from the instructions that cause rejections:

• Handwritten signatures only when you fax. Digital, electronic, or typed signatures aren’t valid on a 2848 or 8821 sent by fax or mail. If you e-signed, you have to submit online at IRS.gov/Submit2848 or IRS.gov/Submit8821 (a Secure Access account is required).
• Line 4 changes the destination. If you checked line 4 (a specific-use authorization), don’t send it to the numbers above. Send it to the IRS office handling that matter.
• 8821 has a 120-day clock when it’s used for something other than resolving a tax matter, like a lender verifying income. The IRS must receive it within 120 days of your signature date.

Tax professionals can often skip the fax entirely: the IRS Tax Pro Account records most authorizations to the CAF immediately.

Source: Instructions for Form 2848 · Instructions for Form 8821

Form 4506-T: requesting a tax transcript

First, the honest shortcut: if you just need your own transcript, Get Transcript online or 800-908-9946 is faster. Form 4506-T is for when those don’t work for you, or for business transcripts. Route it by the state you lived in (or the business was in) when that return was filed, and note the two charts differ:

Individual transcripts (Form 1040 series, W-2, 1099):

All other transcripts (business returns and more):

The IRS must receive the form within 120 days of your signature, the acknowledgment box in the signature area must be checked or the form is returned unprocessed, and you can list only one tax form number per request. Most requests are processed within 10 business days.

Two look-alikes that aren’t faxed by you: Form 4506 (a full copy of your return, $30 per return) is mailed with payment, and Form 4506-C is faxed by your lender through the IRS’s IVES program.

Source: Form 4506-T (Rev. 4-2025)

Form 14039: identity theft affidavit

The IRS prefers you submit Form 14039 online. If you fax it, the number is 855-807-5720 (toll-free). Always include a cover sheet marked “Confidential.” If you’re responding to an IRS notice or letter that gives its own fax number, use that one instead. Pick one method only: don’t send it online and by fax.

Source: Form 14039 (Rev. 2-2026)

Replying to an IRS notice or letter

This is the most common reason people fax the IRS, and the one where lists like this one can hurt you. If the IRS wrote to you (a CP notice, an exam letter, a request for more documents, a refund trace on Form 3911), the correct fax number is the one printed on that letter. It routes to the team that owns your case. Include the notice or its response page with what you send so it can be matched to your file.

What you can’t fax

• Form 8832 (entity classification election): mail only.
• Form 4506 (copy of a return): mail, with the $30 fee.
• Tax returns themselves (1040, 1040-X, 1120, 1120-S): e-file or mail. Only fax a return if an IRS employee working your case gives you a fax number for it.

How to fax the IRS from your computer, without a fax machine

Every number above is a US number, so any online fax service can reach it. On Browserfax it takes about two minutes:

1. Sign the form, by hand if it’s a 2848 or 8821, then scan it or photograph it in good light. PDF, JPG, and PNG all work. From Word or Google Docs, save as PDF first.
2. Open browserfax.com/app in any browser. Nothing to install.
3. Enter the IRS fax number from the right row above. The country picker defaults to the US.
4. Upload your pages. Up to 5 files are merged into one fax, and you’ll see the page count before you send. Check it matches your form, signature page included.
5. Click Send and sign in with Google. That creates your account with 20 free pages, no credit card. Most IRS forms are 1–4 pages, so the free pages cover them.
6. Watch the status: Queued → Sending → Delivered. You get an email with the IRS number, page count, and a reference ID, and the fax stays in your Sent history.

If the IRS line is busy, which happens near filing deadlines, the fax shows Failed and the pages go straight back to your balance, so a busy signal costs you nothing. Retry in a few minutes or off-peak; the SS-4 lines run 24/7.

On privacy: you’re sending SSNs, EINs, and signatures. Browserfax encrypts documents in transit and at rest, and your fax arrives clean, with no service branding on it. That’s not true everywhere: free services like FaxZero print their logo and your name, email, and IP address on the cover page (details). A print shop means handing the pages to a stranger.

Checklist before you hit Send

• Right form, right number, right region. Check the state table, not your memory of the last form you sent.
• One form per fax. They go to different teams anyway.
• Readable pages. Dark ink, straight scans, no shadows across the signature.
• Signed and dated. Unsigned forms are the most common reason for rejection, and 4506-T’s 120-day clock starts at the signature.
• Keep the original and the Delivered email. For a 2553, the confirmation is your proof of timely filing, so keep it permanently with the corporate records.

The bottom line

The IRS still takes faxes for the forms that matter most to small businesses and their accountants. The only hard part is the number, which depends on the form, your state, and sometimes the kind of transcript. Look it up in the tables above, confirm it on the linked IRS page, and send it from your browser. Your first 20 pages are free, and if the IRS needs to fax you back (an EIN, say), a US number costs $8 a month.

Fax the IRS free from your browser →

Fax numbers verified against the current IRS instructions on September 25, 2026: Form 2553 · Form SS-4 · Form 2848 · Form 8821 · Form 4506-T · Form 14039. The IRS can change these numbers without notice, so confirm on the linked page before sending. This article is general information, not tax advice.