IRS Fax Numbers Directory: SS-4, 2848, 2553 and More

IRS fax numbers by form (checked 14 October 2026 on IRS.gov):

The full directory below adds the exact state rules, Forms 5472, 7004, 8802, 8655, 8233, 15397 and 8508, and a prefilled send link for each number.

For detailed preparation, use the SS-4 / EIN guide, Form 2848 guide, Form 2553 guide or Form 4506-T guide. Each handles its own form and routing rules.

Need to send an ordinary document? Review a one-time fax quote. $0.99 covers up to 10 pages, pay only if delivered.

IRS fax number by form (official numbers and send links)

Confirm the “who uses it” rule before pressing send. A prefilled number reduces typing; it does not choose the correct office for you. Guided filing prices are SingleFax service fees, separate from any IRS fee, and not the price of simply transmitting your own completed document.

All rows checked 2026-10-08. Forms 2848 and 8821 have separate instructions with matching general CAF numbers; a specific-use authorization may instead go to the IRS office handling that matter. The linked guides explain exceptions. Do not treat a number shared by two forms as a general-purpose IRS inbox.

Form 2848 and 8821 CAF state groups

Memphis: AL, AR, CT, DE, DC, FL, GA, IL, IN, KY, LA, ME, MD, MA, MI, MS, NH, NJ, NY, NC, OH, PA, RI, SC, TN, VT, VA and WV.

Ogden: AK, AZ, CA, CO, HI, ID, IA, KS, MN, MO, MT, NE, NV, NM, ND, OK, OR, SD, TX, UT, WA, WI and WY.

Use the International CAF row for the territories, Puerto Rico, APO/FPO, foreign-country or otherwise outside-US cases listed in the instructions. These are taxpayer-residence rules. A representative's office location is not automatically the taxpayer's routing location.

For Form 8821 preparation, use the tax-information authorization guide. Form 8821 permits specified information access; it does not grant the same representation authority as Form 2848.

Form 2553 state groups

Kansas City: CT, DE, DC, GA, IL, IN, KY, ME, MD, MA, MI, NH, NJ, NY, NC, OH, PA, RI, SC, TN, VT, VA, WV and WI.

Ogden: AL, AK, AZ, AR, CA, CO, FL, HI, ID, IA, KS, LA, MN, MS, MO, MT, NE, NV, NM, ND, OK, OR, SD, TX, UT, WA and WY.

Use the corporation's principal business, office or agency location under the current chart. The 2553 split differs from CAF. For example, Florida routes to Ogden for 2553 but Memphis for CAF; Wisconsin routes to Kansas City for 2553 but Ogden for CAF.

Form 4506-T has two different routing charts

Choose individual transcripts or all other transcripts first, then match the state or location under that chart. Austin appears in the individual chart; Ogden and Kansas City appear in both with different groups. A city name alone is not enough to select the right row.

The live IRS where-to-file page explicitly says its current addresses can differ from the printed form. The 4506-T guide reproduces both state charts. Follow the current chart for the requested return or transcript, rather than reusing a CAF or 2553 split.

Form-specific preparation and exceptions

SS-4: arrange a return channel that lasts

An EIN application can be submitted by the applicable online, fax, mail or international telephone method when eligible. Fax is an option, not the only possible method for every applicant without an SSN or ITIN.

Put a working return fax number in the applicant fax-number field if you want the IRS to fax the EIN back. Line 18 is about prior EIN applications, not your return fax number. Keep the line active long enough for processing; a 24-hour number is usually too short for this task.

The checked IRS processing-status page lists faxed SS-4 processing at ten business days after receipt, while the standing instructions still describe generally four business days under Fax-TIN. Plan around the live status and allow for special handling. The guided EIN service for $19.99 includes its own 90-day return channel; an ordinary outgoing send does not.

2848 and 8821: signatures and specific-use routing

For faxed or mailed authorizations, follow the signature rules in the current instructions. Form 2848 requires handwritten signatures for fax or mail; an electronic signature accepted through an IRS online submission path is not automatically valid on a faxed form.

If a specific-use authorization is not recorded on CAF, follow the office handling that matter rather than blindly using the general CAF table. Keep the tax matter, form and periods precise. A delivery receipt does not establish that the authorization was recorded.

5472 and 7004: a limited foreign-owned DE exception

The fax route above is for the special foreign-owned US disregarded entity rules. The 5472 packet includes the pro forma Form 1120, with the required identifying notation. The associated 7004 follows the special route, rather than the ordinary 7004 filing address.

The IRS instructions specify fax at 300 DPI or higher for this packet. Follow that form-specific requirement and confirm the sending method's actual output capabilities; selecting a high-resolution source scan alone does not establish the negotiated transmission resolution. Do not generalize either the resolution requirement or this filing exception to every IRS form.

Use the 5472 guide and 7004 extension guide for the complete packet and applicable deadline. A calendar-year example is not every entity's filing deadline, and a filing extension does not generally extend payment obligations.

8802: pay the IRS fee before the fax route

The instructions permit fax submission after electronic fee payment and entry of the confirmation number. They allow up to ten Forms 8802, including required attachments, within a maximum of 100 pages and require a cover stating the page count.

The IRS user fee is separate from SingleFax's $29.99 preparation-and-fax service. Use the 8802 guide and current IRS payment instructions. Do not send to a certification number expecting it to process an unrelated tax return or transcript request.

8655 and 8233: different authorizations

Form 8655 is reporting-agent authorization, with a limit of 25 forms per fax transmission under its checked instructions. It is not interchangeable with a CAF power of attorney.

Form 8233 is handled through the withholding agent's acceptance and forwarding process. Its instructions limit fax transmissions to 25 pages and give additional timing and withholding rules. The agent's role matters; do not treat the listed number as permission to skip acceptance or required attachments.

15397 and 8508: furnishing extension versus filing waiver

Form 15397 concerns additional time to furnish recipient statements. It is not an automatic extension of the deadline to file information returns with the IRS. The current form offers online submission or fax.

Form 8508 concerns a waiver of required electronic filing, not extra time to file. The September 2026 form says to select one filing method: online, fax or mail. Shared fax numbers do not make these requests interchangeable. Use the 15397 guide or 8508 guide for their different purposes.

What about Form 1040, refund tracing and IRS letters?

These lines are not general Form 1040 filing destinations. Standard returns use the applicable electronic filing method or paper mailing address. The Form 1040 fax guide explains the distinction between filing a return and responding to an assigned employee's request.

For Form 3911 refund tracing or a notice response, follow the current case, location and notice instructions. A fax number printed on an IRS letter may serve that specific response. It should not be reused for unrelated forms simply because it belongs to the IRS. The guided Form 3911 service is $9.99; confirm its eligibility and routing for your request.

Never use a voice help line as a fax destination. Verify unfamiliar instructions against IRS.gov or your assigned contact, especially when a third-party page provides a number without the form and unit it serves.

How to fax the IRS, step by step

1. Confirm the form accepts fax. Use the table above or the form's current instructions. If your form or situation is not listed, check what you cannot fax to the IRS before sending.
2. Pick the line by routing rule. Choose by taxpayer location, form and unit, not by the first IRS number you find.
3. Sign as the instructions require. Some forms accept electronic signatures in specific channels and others do not; follow the current instructions for that form.
4. Scan cleanly. Black-and-white at 300 DPI or better, dark ink, no shadows or angled phone photos. Combine every page into one PDF in order.
5. Use a minimal cover. IRS unit, form name, page count, your name and call-back number. Keep full SSNs and account numbers off the cover.
6. Send and keep the receipt. Save the transmission receipt (date, time, destination, pages) with your signed copy. Delivery is not the same as IRS acceptance.

Send a completed form or use a guided filing tool

If you already have the signed, complete packet, use a number's Fax to this number now link above. It opens the composer with the destination and office label filled in. Inspect those fields, all uploaded pages and the final quote before paying. An existing saved composer draft can take precedence, so confirm the visible destination even after following a prefilled link.

Ordinary sending starts at $0.99 for up to ten document pages, with $0 on failed delivery. Longer packets add $0.08 per document page up to 100. The composer-generated cover is excluded from billed document pages; a cover already in your uploaded PDF is part of that document.

Guided filing tools have their separate service prices shown in the table. They help prepare and transmit the relevant packet; successful delivery is distinct from IRS acceptance, EIN assignment, election approval or record processing. Keep the signed copy and transmission receipt and use the IRS's official confirmation process.

For an ordinary routing cover, download a free template or fill one online. Put the IRS unit, form reference, callback details and accurate page count on it. Keep unnecessary full identifiers off the exposed cover and follow any official instruction that requires a particular sheet or first page.

Social Security uses a separate agency and local or case-specific routes. See how to fax Social Security; do not send an SSA packet to an IRS number.