IRS Fax Numbers

EIN Applications (Form SS-4)

Where the business is decides which of the three lines you use, not your nationality. Fax (855) 641-6935 if your principal business, office or agency is in a state or Washington DC. The same line applies when your legal residence as an individual is there. If you have none of those in any state, use (855) 215-1627 when faxing from inside the United States or (304) 707-9471 from outside it. A founder who is not a US citizen still uses the first number for a US-based company. Send to one line only; the IRS says a business entity should have only one EIN and that you can apply only for 1 EIN per day. The Fax-TIN service operates 24/7. The IRS targets 4 business days. Across real fax-backs, about 16 days is typical. The IRS faxes your assigned EIN to the return number you provide.

Foreign-Owned LLC Filing (Form 5472)

Fax number: (855) 887-7737. Required annually for all foreign-owned US single-member LLCs. Cannot be e-filed for disregarded entities. Penalty for non-filing: $25,000 per form. Due April 15 (extensions available via Form 7004).

S-Corp Election (Form 2553)

Eastern states: (855) 887-7734. Western states: (855) 214-7520. Cannot be e-filed. Deadline: 2 months and 15 days after tax year start. IRS responds with CP 261 (accepted) or CP 264 (denied) by mail in approximately 60 days.

Power of Attorney (Form 2848) and Tax Info Auth (Form 8821)

Eastern states (Memphis CAF Unit): (855) 214-7519. Western states (Ogden CAF Unit): (855) 214-7522. International: (855) 772-3156 from US, (304) 707-9785 from abroad. Processing typically takes several business days. These forms can also be submitted online at IRS.gov/Submit2848.

Tax Transcript Requests (Form 4506-T)

Three regional numbers based on your state. Austin, TX: (855) 587-9604 (FL, LA, MS, TX, foreign). Ogden, UT: (855) 298-1145 (western and mid-Atlantic states). Kansas City, MO: (855) 821-0094 (eastern and midwestern states). The IRS mails transcripts to your address on file and does not fax them back.

US Residency Certification (Form 8802)

Toll-free: (877) 824-9110. Non-toll-free: (304) 707-9792. Requires prior payment on Pay.gov ($105 individual / $230 non-individual). Max 10 forms per transmission. The IRS responds with Form 6166 by mail, typically after several weeks.

Missing Refund Trace (Form 3911)

Eight Refund Inquiry Units for individuals, routed by the state you live in. Andover (ME, MD, MA, NH, VT): (855) 253-3175. Atlanta (GA, IA, KS, KY, VA): (855) 275-8620. Austin (FL, LA, MS, OK, TX): (855) 203-7538. Brookhaven (NY): (855) 297-7736. Fresno (AK, AZ, CA, CO, HI, NV, NM, OR, UT, WA, WI, WY): (855) 332-3068. Kansas City (AR, CT, DE, IN, MI, MN, MO, MT, NE, NJ, OH, WV): (855) 344-9993. Memphis (AL, NC, ND, SC, SD, TN): (855) 580-4749. Philadelphia (DC, ID, IL, PA, RI): (855) 404-9091. Austin also serves filers in a foreign country or a U.S. possession or territory, filers with an APO or FPO address, Form 2555 or 4563 filers, and dual-status aliens. Businesses use two more: Cincinnati (states east of the Mississippi, plus Arkansas and Louisiana): (855) 307-3124. Ogden (states west of the Mississippi, plus Wisconsin): (855) 578-2550. The IRS page for Form 3911 describes no acknowledgment, so keep your delivery confirmation. See the Form 3911 guide.

Taxpayer Advocate Service (Form 911)

One central fax line for every state: (855) 828-2723, or (304) 707-9793 from outside the US. Not your local TAS office; that office is the contact once a case is open. See the Form 911 guide.

Innocent Spouse Relief (Form 8857)

One fax line for the form and its attachments: (855) 233-8558. By law the IRS must contact your spouse or former spouse. See the Form 8857 guide for what the IRS will and will not disclose and the deadlines.

IRS fax numbers by office

Each office answers specific forms on specific lines, so "the IRS Austin fax number" depends on what you are sending.

• Andover: Form 3911 (855) 253-3175.
• Atlanta: Form 3911 (855) 275-8620.
• Austin, TX: Form 4506-T (855) 587-9604 for FL, LA, MS, TX and foreign filers; Form 3911 (855) 203-7538 for FL, LA, MS, OK, TX and filers in a foreign country or a U.S. possession or territory, filers with an APO or FPO address, Form 2555 or 4563 filers, and dual-status aliens.
• Brookhaven: Form 3911 (855) 297-7736.
• Cincinnati: Form 3911 for businesses (855) 307-3124.
• Fresno, CA: Form 3911 (855) 332-3068.
• Kansas City, MO: Form 2553 (855) 887-7734 eastern states; Form 4506-T (855) 821-0094 eastern and midwestern states; Form 3911 (855) 344-9993.
• Memphis, TN: Form 2848 and 8821 CAF unit (855) 214-7519 eastern states; Form 3911 (855) 580-4749.
• Ogden, UT: Form 2553 (855) 214-7520 western states; Form 2848 and 8821 CAF unit (855) 214-7522 western states; Form 4506-T (855) 298-1145 western and mid-Atlantic states; Form 5472 (855) 887-7737; Form 3911 for businesses (855) 578-2550.
• Philadelphia, PA: Form 8802 (877) 824-9110; Form 3911 (855) 404-9091.

A tax return, Form 1040 included, has no fax line at any office. See IRS fax number for Form 1040.

IRS forms with no fax line

These have no IRS fax line: Form 8822 and 8822-B (change of address, by mail), Form 8832 (entity classification, by mail), Form 9465 (installment agreement request, by mail or online), Form 843 (refund or abatement claim, by mail), Form 56 (fiduciary notice, by mail) and Form 941 (e-file or mail). Form 433-D goes to the address on your IRS letter, or a fax number if the letter prints one. To fax Form 12153, the form says to call the number on your notice.

Acquisition of Control (Form 8806): FAX ONLY

Fax number: (844) 249-6232. This form can only be submitted by fax; the IRS no longer accepts mail. Due within 45 days of the transaction. Penalty: $500 per day late, up to $100,000. See the Form 8806 guide for the full filing walkthrough.

Extension to Furnish Recipient Statements (Form 15397)

Fax number: (877) 477-0572 domestic (toll-free) · (304) 579-4105 international. Use Form 15397 to request up to 30 more days to furnish statements such as W-2s and 1099s to your recipients. File it by the date the statements are due to recipients. The IRS issues no approval letter, and writes only if the request is incomplete or denied. Form 15397 does not extend the deadline to file information returns with the IRS. That request is Form 8809, which is filed online or on paper by mail rather than by fax. See the Form 8809 guide for both requests.

Letter 12C Responses (Form 8962): No Public Fax Number

The IRS publishes no fax number for Letter 12C responses (the letter asking for Form 8962 and a copy of your Form 1095-A). Each letter is issued by a specific processing site and prints the fax number for your case: use the number on your letter, not one from a directory or forum. See the Form 8962 / Letter 12C guide for the full walkthrough.

More IRS Fax Resources

For what the IRS accepts by fax and how the filing process works end to end, see How to Fax the IRS (the overview hub) and How to Fax the IRS: Complete Guide (the long-form walkthrough with mistakes to avoid). To receive a 147C, SS-4 fax-back, or 385C from the IRS, see How to Receive a Fax from the IRS. And if you're wondering whether a fax confirmation counts as legal proof of timely filing, see Is a Fax Confirmation Proof of IRS Filing?.