# Internal Revenue Service fax numbers for SS-4, elections and tax authorizations

Find IRS fax numbers by form: SS-4 for an EIN, Form 2553 for an S corporation election, and tax authorization or transcript requests.

Country: United States
Category: Government
Last reviewed: 2026-09-22 (published sources, not a test transmission)

## Which Internal Revenue Service fax number should I use?

Start with the IRS fax number finder. The form, business location, sender location or state can change the destination. A number for one form is not a general IRS fax number. Instructions on a notice or from your assigned IRS employee take precedence for that case.

[Use the IRS finder](https://dearfax.com/irs-fax-numbers).

## Form SS-4 — EIN Operation, Cincinnati

Fax: +1 855 641 6935
E.164: +18556416935

Toll-free number; service and international charges may still apply.

Apply for an EIN

Use only when: Principal business, office or agency, or legal residence for an individual, in one of the 50 states or DC. A US incorporation address alone does not establish the location used by these instructions. Check your circumstances against the IRS guidance. Use these destinations for an EIN application, not other IRS correspondence.

[Mail or fax Form SS-4](https://www.irs.gov/filing/where-to-file-your-taxes-for-form-ss-4) — reviewed 2026-09-22

## Form SS-4 — EIN International Operation, Cincinnati

Fax: +1 855 215 1627
E.164: +18552151627

Toll-free number; service and international charges may still apply.

Apply for an EIN

Use only when: No legal residence, principal business, office or agency in any state; sending from within the US. A US incorporation address alone does not establish the location used by these instructions. Check your circumstances against the IRS guidance. Use these destinations for an EIN application, not other IRS correspondence.

[Mail or fax Form SS-4](https://www.irs.gov/filing/where-to-file-your-taxes-for-form-ss-4) — reviewed 2026-09-22

## Form SS-4 — EIN International Operation, Cincinnati

Fax: +1 304 707 9471
E.164: +13047079471

Apply for an EIN

Use only when: No legal residence, principal business, office or agency in any state; sending from outside the US. A US incorporation address alone does not establish the location used by these instructions. Check your circumstances against the IRS guidance. Use these destinations for an EIN application, not other IRS correspondence.

[Mail or fax Form SS-4](https://www.irs.gov/filing/where-to-file-your-taxes-for-form-ss-4) — reviewed 2026-09-22

## Form 2553 — IRS Center, Kansas City

Fax: +1 855 887 7734
E.164: +18558877734

Toll-free number; service and international charges may still apply.

Elect S corporation status

Use only when: Principal business, office or agency in: Connecticut, Delaware, District of Columbia, Georgia, Illinois, Indiana, Kentucky, Maine, Maryland, Massachusetts, Michigan, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, West Virginia, Wisconsin. Keep the original election with the business’s permanent records after faxing. Certain late elections may be filed with Form 1120-S. Review the instructions for eligibility and late-election procedures.

[Where to file table](https://www.irs.gov/filing/where-to-file-your-taxes-for-form-2553) — reviewed 2026-09-22

## Form 2553 — IRS Center, Ogden

Fax: +1 855 214 7520
E.164: +18552147520

Toll-free number; service and international charges may still apply.

Elect S corporation status

Use only when: Principal business, office or agency in: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Florida, Hawaii, Idaho, Iowa, Kansas, Louisiana, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, South Dakota, Texas, Utah, Washington, Wyoming. Keep the original election with the business’s permanent records after faxing. Certain late elections may be filed with Form 1120-S. Review the instructions for eligibility and late-election procedures.

[Where to file table](https://www.irs.gov/filing/where-to-file-your-taxes-for-form-2553) — reviewed 2026-09-22

## Form 2848 — CAF unit, Memphis

Fax: +1 855 214 7519
E.164: +18552147519

Toll-free number; service and international charges may still apply.

Authorize a representative

Use only when: Line 4 is not checked; signed by hand on paper. Taxpayer location: Alabama, Arkansas, Connecticut, Delaware, District of Columbia, Florida, Georgia, Illinois, Indiana, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Mississippi, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, West Virginia. CAF is the IRS Centralized Authorization File, where it records authorizations. If line 4 is checked, use the IRS office handling that specific matter. Forms signed electronically must use the IRS online submission process. For faxing, sign the paper form by hand before scanning it. With line 4 checked, the standard CAF fax numbers do not apply. Follow the submission instructions from the IRS office handling the specific matter. The IRS requires its online submission process for electronically signed authorizations. See “How To File” in the official instructions.

[Where To File Chart; How To File; Electronic Signatures; Line 4](https://www.irs.gov/instructions/i2848) — reviewed 2026-09-22

## Form 2848 — CAF unit, Ogden

Fax: +1 855 214 7522
E.164: +18552147522

Toll-free number; service and international charges may still apply.

Authorize a representative

Use only when: Line 4 is not checked; signed by hand on paper. Taxpayer location: Alaska, Arizona, California, Colorado, Hawaii, Idaho, Iowa, Kansas, Minnesota, Missouri, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, South Dakota, Texas, Utah, Washington, Wisconsin, Wyoming. CAF is the IRS Centralized Authorization File, where it records authorizations. If line 4 is checked, use the IRS office handling that specific matter. Forms signed electronically must use the IRS online submission process. For faxing, sign the paper form by hand before scanning it. With line 4 checked, the standard CAF fax numbers do not apply. Follow the submission instructions from the IRS office handling the specific matter. The IRS requires its online submission process for electronically signed authorizations. See “How To File” in the official instructions.

[Where To File Chart; How To File; Electronic Signatures; Line 4](https://www.irs.gov/instructions/i2848) — reviewed 2026-09-22

## Form 2848 — International CAF Team, Philadelphia

Fax: +1 855 772 3156
E.164: +18557723156

Toll-free number; service and international charges may still apply.

Authorize a representative

Use only when: Line 4 is not checked; signed by hand on paper. Taxpayer has an APO/FPO, US territory or foreign address; sending within the US. CAF is the IRS Centralized Authorization File, where it records authorizations. If line 4 is checked, use the IRS office handling that specific matter. Forms signed electronically must use the IRS online submission process. For faxing, sign the paper form by hand before scanning it. With line 4 checked, the standard CAF fax numbers do not apply. Follow the submission instructions from the IRS office handling the specific matter. The IRS requires its online submission process for electronically signed authorizations. See “How To File” in the official instructions.

[Where To File Chart; How To File; Electronic Signatures; Line 4](https://www.irs.gov/instructions/i2848) — reviewed 2026-09-22

## Form 2848 — International CAF Team, Philadelphia

Fax: +1 304 707 9785
E.164: +13047079785

Authorize a representative

Use only when: Line 4 is not checked; signed by hand on paper. Taxpayer has an APO/FPO, US territory or foreign address; sending outside the US. CAF is the IRS Centralized Authorization File, where it records authorizations. If line 4 is checked, use the IRS office handling that specific matter. Forms signed electronically must use the IRS online submission process. For faxing, sign the paper form by hand before scanning it. With line 4 checked, the standard CAF fax numbers do not apply. Follow the submission instructions from the IRS office handling the specific matter. The IRS requires its online submission process for electronically signed authorizations. See “How To File” in the official instructions.

[Where To File Chart; How To File; Electronic Signatures; Line 4](https://www.irs.gov/instructions/i2848) — reviewed 2026-09-22

## Form 8821 — CAF unit, Memphis

Fax: +1 855 214 7519
E.164: +18552147519

Toll-free number; service and international charges may still apply.

Allow access to tax information

Use only when: Line 4 is not checked; signed by hand on paper. Taxpayer location: Alabama, Arkansas, Connecticut, Delaware, District of Columbia, Florida, Georgia, Illinois, Indiana, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Mississippi, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, West Virginia. CAF is the IRS Centralized Authorization File, where it records authorizations. If line 4 is checked, use the IRS office handling that specific matter. Forms signed electronically must use the IRS online submission process. For faxing, sign the paper form by hand before scanning it. With line 4 checked, the standard CAF fax numbers do not apply. Follow the submission instructions from the IRS office handling the specific matter. The IRS requires its online submission process for electronically signed authorizations. See “How To File” in the official instructions.

[Where To File Chart; How To File; Electronic Signatures; Line 4](https://www.irs.gov/instructions/i8821) — reviewed 2026-09-22

## Form 8821 — CAF unit, Ogden

Fax: +1 855 214 7522
E.164: +18552147522

Toll-free number; service and international charges may still apply.

Allow access to tax information

Use only when: Line 4 is not checked; signed by hand on paper. Taxpayer location: Alaska, Arizona, California, Colorado, Hawaii, Idaho, Iowa, Kansas, Minnesota, Missouri, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, South Dakota, Texas, Utah, Washington, Wisconsin, Wyoming. CAF is the IRS Centralized Authorization File, where it records authorizations. If line 4 is checked, use the IRS office handling that specific matter. Forms signed electronically must use the IRS online submission process. For faxing, sign the paper form by hand before scanning it. With line 4 checked, the standard CAF fax numbers do not apply. Follow the submission instructions from the IRS office handling the specific matter. The IRS requires its online submission process for electronically signed authorizations. See “How To File” in the official instructions.

[Where To File Chart; How To File; Electronic Signatures; Line 4](https://www.irs.gov/instructions/i8821) — reviewed 2026-09-22

## Form 8821 — International CAF Team, Philadelphia

Fax: +1 855 772 3156
E.164: +18557723156

Toll-free number; service and international charges may still apply.

Allow access to tax information

Use only when: Line 4 is not checked; signed by hand on paper. Taxpayer has an APO/FPO, US territory or foreign address; sending within the US. CAF is the IRS Centralized Authorization File, where it records authorizations. If line 4 is checked, use the IRS office handling that specific matter. Forms signed electronically must use the IRS online submission process. For faxing, sign the paper form by hand before scanning it. With line 4 checked, the standard CAF fax numbers do not apply. Follow the submission instructions from the IRS office handling the specific matter. The IRS requires its online submission process for electronically signed authorizations. See “How To File” in the official instructions.

[Where To File Chart; How To File; Electronic Signatures; Line 4](https://www.irs.gov/instructions/i8821) — reviewed 2026-09-22

## Form 8821 — International CAF Team, Philadelphia

Fax: +1 304 707 9785
E.164: +13047079785

Allow access to tax information

Use only when: Line 4 is not checked; signed by hand on paper. Taxpayer has an APO/FPO, US territory or foreign address; sending outside the US. CAF is the IRS Centralized Authorization File, where it records authorizations. If line 4 is checked, use the IRS office handling that specific matter. Forms signed electronically must use the IRS online submission process. For faxing, sign the paper form by hand before scanning it. With line 4 checked, the standard CAF fax numbers do not apply. Follow the submission instructions from the IRS office handling the specific matter. The IRS requires its online submission process for electronically signed authorizations. See “How To File” in the official instructions.

[Where To File Chart; How To File; Electronic Signatures; Line 4](https://www.irs.gov/instructions/i8821) — reviewed 2026-09-22

## Form 8655 — Reporting Agents File (RAF) Team, Ogden

Fax: +1 855 214 7523
E.164: +18552147523

Toll-free number; service and international charges may still apply.

Authorize a reporting agent

Use only when: Completed Form 8655 authorizing a reporting agent; submit no more than 25 forms in one fax. Send the completed, signed authorization to the RAF Team. Sending it to another IRS office does not satisfy the RAF filing requirement. Limit each transmission to 25 Forms 8655.

[Page 2, Where To File](https://www.irs.gov/pub/irs-pdf/f8655.pdf) — reviewed 2026-09-23

## Form 8023 — Office of Tax Shelter Analysis (OTSA)

Fax: +1 844 253 9765
E.164: +18442539765

Toll-free number; service and international charges may still apply.

Make a corporate stock-purchase election

Use only when: Completed Form 8023 and related attachments for a section 338 election; the entire fax must not exceed 100 pages. Complete the required signatures before submitting. Use this number only for Form 8023 and related attachments. The cover sheet should state Form 8023, the sender’s name, title, phone number and street address, the date, and the total page count. Do not include an EIN or SSN on the cover sheet. Limit the fax, including the cover sheet, to 100 pages.

[When and Where To File](https://www.irs.gov/instructions/i8023) — reviewed 2026-09-23

## Form 8806 — IRS Form 8806 intake

Fax: +1 844 249 6232
E.164: +18442496232

Toll-free number; service and international charges may still apply.

Report a change in corporate control

Use only when: Form 8806 reporting an acquisition of control or a substantial change in a domestic corporation’s capital structure. The IRS filing update requires fax submission until further notice. Form 8806 can no longer be mailed. Complete the form and required signature. This number is for Form 8806, not general IRS correspondence.

[Cover sheet: Form 8806 Must Be Filed By Fax](https://www.irs.gov/pub/irs-pdf/f8806.pdf) — reviewed 2026-09-23

## Form 8918 — Office of Tax Shelter Analysis (OTSA)

Fax: +1 844 253 5607
E.164: +18442535607

Toll-free number; service and international charges may still apply.

Disclose a reportable transaction as an advisor

Use only when: Completed, signed Form 8918 and related attachments from a material advisor; send one form per fax, up to 100 pages. Send only one completed, signed Form 8918 per fax. The IRS fax procedure remains in effect until further notice. The cover sheet should state Form 8918, the sender’s name, title, phone number and street address, the material advisor’s name, the date, and total page count. Do not include an EIN or SSN on the cover sheet. Limit the fax, including the cover sheet, to 100 pages.

[Where To File](https://www.irs.gov/instructions/i8918) — reviewed 2026-09-23

## Form 4506-T — RAIVS Team, Austin

Fax: +1 855 587 9604
E.164: +18555879604

Toll-free number; service and international charges may still apply.

Request a tax transcript

Use only when: Individual transcripts (1040 series, W-2 and 1099); address at filing: Florida, Louisiana, Mississippi, Texas, foreign address, US territory or APO/FPO. Choose the chart for the transcript type and the address when the return was filed. If multiple transcripts imply different destinations, use the most recent return’s address. A transcript request is different from Form 4506, which requests a paid copy of a return.

[Current submission instructions](https://www.irs.gov/filing/where-to-file-addresses-for-filing-form-4506-t) — reviewed 2026-10-04

## Form 4506-T — RAIVS Team, Ogden

Fax: +1 855 298 1145
E.164: +18552981145

Toll-free number; service and international charges may still apply.

Request a tax transcript

Use only when: Individual transcripts (1040 series, W-2 and 1099); address at filing: Alaska, Arizona, California, Colorado, Connecticut, District of Columbia, Hawaii, Idaho, Kansas, Maryland, Michigan, Montana, Nebraska, Nevada, New Mexico, North Dakota, Ohio, Oregon, Pennsylvania, Rhode Island, South Dakota, Utah, Washington, West Virginia, Wyoming. Choose the chart for the transcript type and the address when the return was filed. If multiple transcripts imply different destinations, use the most recent return’s address. A transcript request is different from Form 4506, which requests a paid copy of a return.

[Current submission instructions](https://www.irs.gov/filing/where-to-file-addresses-for-filing-form-4506-t) — reviewed 2026-10-04

## Form 4506-T — RAIVS Team, Kansas City

Fax: +1 855 821 0094
E.164: +18558210094

Toll-free number; service and international charges may still apply.

Request a tax transcript

Use only when: Individual transcripts (1040 series, W-2 and 1099); address at filing: Alabama, Arkansas, Delaware, Georgia, Illinois, Indiana, Iowa, Kentucky, Maine, Massachusetts, Minnesota, Missouri, New Hampshire, New Jersey, New York, North Carolina, Oklahoma, South Carolina, Tennessee, Vermont, Virginia, Wisconsin. Choose the chart for the transcript type and the address when the return was filed. If multiple transcripts imply different destinations, use the most recent return’s address. A transcript request is different from Form 4506, which requests a paid copy of a return.

[Current submission instructions](https://www.irs.gov/filing/where-to-file-addresses-for-filing-form-4506-t) — reviewed 2026-10-04

## Form 4506-T — RAIVS Team, Ogden

Fax: +1 855 298 1145
E.164: +18552981145

Toll-free number; service and international charges may still apply.

Request a tax transcript

Use only when: All other transcripts; address at filing: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Florida, Hawaii, Idaho, Iowa, Kansas, Louisiana, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, South Dakota, Texas, Utah, Washington, Wyoming, foreign address, US territory or APO/FPO. Choose the chart for the transcript type and the address when the return was filed. If multiple transcripts imply different destinations, use the most recent return’s address. A transcript request is different from Form 4506, which requests a paid copy of a return.

[Current submission instructions](https://www.irs.gov/filing/where-to-file-addresses-for-filing-form-4506-t) — reviewed 2026-10-04

## Form 4506-T — RAIVS Team, Kansas City

Fax: +1 855 821 0094
E.164: +18558210094

Toll-free number; service and international charges may still apply.

Request a tax transcript

Use only when: All other transcripts; address at filing: Connecticut, Delaware, District of Columbia, Georgia, Illinois, Indiana, Kentucky, Maine, Maryland, Massachusetts, Michigan, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, West Virginia, Wisconsin. Choose the chart for the transcript type and the address when the return was filed. If multiple transcripts imply different destinations, use the most recent return’s address. A transcript request is different from Form 4506, which requests a paid copy of a return.

[Current submission instructions](https://www.irs.gov/filing/where-to-file-addresses-for-filing-form-4506-t) — reviewed 2026-10-04

## Form 5472 — PIN Unit, Ogden

Fax: +1 855 887 7737
E.164: +18558877737

Toll-free number; service and international charges may still apply.

Submit Form 5472 with a pro forma Form 1120

Use only when: Foreign-owned US disregarded entity submitting the required pro forma 1120 and Form 5472; 300 DPI or higher. This special fax procedure is only for a foreign-owned US disregarded entity. It is not the ordinary filing route for every Form 5472. Attach Form 5472 to the required pro forma Form 1120, mark it “Foreign-owned U.S. DE”, and use 300 DPI or higher fax resolution.

[Current submission instructions](https://www.irs.gov/instructions/i5472) — reviewed 2026-10-04

## Form 8802 — US Residency Certification — domestic

Fax: +1 877 824 9110
E.164: +18778249110

Toll-free number; service and international charges may still apply.

Apply for US residency certification (Form 6166)

Use only when: Electronic payment completed and confirmation entered; sending from within the US. Pay electronically and enter the payment confirmation number on Form 8802 before faxing. Uploading the form at Pay.gov does not submit it for processing. Maximum 10 Forms 8802 and 100 pages including attachments; include a cover sheet with the page count. Check or money-order payments use the mailing procedure.

[Current submission instructions](https://www.irs.gov/instructions/i8802) — reviewed 2026-10-04

## Form 8802 — US Residency Certification — international

Fax: +1 304 707 9792
E.164: +13047079792

Apply for US residency certification (Form 6166)

Use only when: Electronic payment completed and confirmation entered; available inside or outside the US. Pay electronically and enter the payment confirmation number on Form 8802 before faxing. Uploading the form at Pay.gov does not submit it for processing. Maximum 10 Forms 8802 and 100 pages including attachments; include a cover sheet with the page count. Check or money-order payments use the mailing procedure.

[Current submission instructions](https://www.irs.gov/instructions/i8802) — reviewed 2026-10-04

## Form 15397 — Technical Services — Extension of Time Coordinator

Fax: +1 877 477 0572
E.164: +18774770572

Toll-free number; service and international charges may still apply.

Request more time to furnish recipient statements

Use only when: Form 15397 recipient-statement extension request from within the US. Use Form 15397 for recipient statements. Form 8809 concerns filing information returns with the IRS and is a different request. File by the recipient-statement due date, not before January 1. Complete the current form’s reason and signature requirements; an extension is not automatic.

[Current submission instructions](https://www.irs.gov/forms-pubs/extension-of-time-to-furnish-statements-to-recipients) — reviewed 2026-10-04

## Form 15397 — Technical Services — Extension of Time Coordinator

Fax: +1 304 579 4105
E.164: +13045794105

Request more time to furnish recipient statements

Use only when: Form 15397 recipient-statement extension request from outside the US. Use Form 15397 for recipient statements. Form 8809 concerns filing information returns with the IRS and is a different request. File by the recipient-statement due date, not before January 1. Complete the current form’s reason and signature requirements; an extension is not automatic.

[Current submission instructions](https://www.irs.gov/forms-pubs/extension-of-time-to-furnish-statements-to-recipients) — reviewed 2026-10-04

## Form 3911 — Andover Refund Inquiry Unit

Fax: +1 855 253 3175
E.164: +18552533175

Toll-free number; service and international charges may still apply.

Trace a missing or lost issued refund

Use only when: Individual refund trace: Maine, Maryland, Massachusetts, New Hampshire, Vermont. These fax lines accept Form 3911 only. Follow IRS waiting periods and do not submit a duplicate trace already initiated by phone. Individual and business refunds have different routing. Foreign addresses, territories, APO/FPO, Form 2555/4563 filers and dual-status individuals use the special Austin route.

[Current submission instructions](https://www.irs.gov/forms-pubs/about-form-3911) — reviewed 2026-10-04

## Form 3911 — Atlanta Refund Inquiry Unit

Fax: +1 855 275 8620
E.164: +18552758620

Toll-free number; service and international charges may still apply.

Trace a missing or lost issued refund

Use only when: Individual refund trace: Georgia, Iowa, Kansas, Kentucky, Virginia. These fax lines accept Form 3911 only. Follow IRS waiting periods and do not submit a duplicate trace already initiated by phone. Individual and business refunds have different routing. Foreign addresses, territories, APO/FPO, Form 2555/4563 filers and dual-status individuals use the special Austin route.

[Current submission instructions](https://www.irs.gov/forms-pubs/about-form-3911) — reviewed 2026-10-04

## Form 3911 — Austin Refund Inquiry Unit

Fax: +1 855 203 7538
E.164: +18552037538

Toll-free number; service and international charges may still apply.

Trace a missing or lost issued refund

Use only when: Individual refund trace: Florida, Louisiana, Mississippi, Oklahoma, Texas, foreign/special taxpayer category. These fax lines accept Form 3911 only. Follow IRS waiting periods and do not submit a duplicate trace already initiated by phone. Individual and business refunds have different routing. Foreign addresses, territories, APO/FPO, Form 2555/4563 filers and dual-status individuals use the special Austin route.

[Current submission instructions](https://www.irs.gov/forms-pubs/about-form-3911) — reviewed 2026-10-04

## Form 3911 — Brookhaven Refund Inquiry Unit

Fax: +1 855 297 7736
E.164: +18552977736

Toll-free number; service and international charges may still apply.

Trace a missing or lost issued refund

Use only when: Individual refund trace: New York. These fax lines accept Form 3911 only. Follow IRS waiting periods and do not submit a duplicate trace already initiated by phone. Individual and business refunds have different routing. Foreign addresses, territories, APO/FPO, Form 2555/4563 filers and dual-status individuals use the special Austin route.

[Current submission instructions](https://www.irs.gov/forms-pubs/about-form-3911) — reviewed 2026-10-04

## Form 3911 — Fresno Refund Inquiry Unit

Fax: +1 855 332 3068
E.164: +18553323068

Toll-free number; service and international charges may still apply.

Trace a missing or lost issued refund

Use only when: Individual refund trace: Alaska, Arizona, California, Colorado, Hawaii, Nevada, New Mexico, Oregon, Utah, Washington, Wisconsin, Wyoming. These fax lines accept Form 3911 only. Follow IRS waiting periods and do not submit a duplicate trace already initiated by phone. Individual and business refunds have different routing. Foreign addresses, territories, APO/FPO, Form 2555/4563 filers and dual-status individuals use the special Austin route.

[Current submission instructions](https://www.irs.gov/forms-pubs/about-form-3911) — reviewed 2026-10-04

## Form 3911 — Kansas City Refund Inquiry Unit

Fax: +1 855 344 9993
E.164: +18553449993

Toll-free number; service and international charges may still apply.

Trace a missing or lost issued refund

Use only when: Individual refund trace: Arkansas, Connecticut, Delaware, Indiana, Michigan, Minnesota, Missouri, Montana, Nebraska, New Jersey, Ohio, West Virginia. These fax lines accept Form 3911 only. Follow IRS waiting periods and do not submit a duplicate trace already initiated by phone. Individual and business refunds have different routing. Foreign addresses, territories, APO/FPO, Form 2555/4563 filers and dual-status individuals use the special Austin route.

[Current submission instructions](https://www.irs.gov/forms-pubs/about-form-3911) — reviewed 2026-10-04

## Form 3911 — Memphis Refund Inquiry Unit

Fax: +1 855 580 4749
E.164: +18555804749

Toll-free number; service and international charges may still apply.

Trace a missing or lost issued refund

Use only when: Individual refund trace: Alabama, North Carolina, North Dakota, South Carolina, South Dakota, Tennessee. These fax lines accept Form 3911 only. Follow IRS waiting periods and do not submit a duplicate trace already initiated by phone. Individual and business refunds have different routing. Foreign addresses, territories, APO/FPO, Form 2555/4563 filers and dual-status individuals use the special Austin route.

[Current submission instructions](https://www.irs.gov/forms-pubs/about-form-3911) — reviewed 2026-10-04

## Form 3911 — Philadelphia Refund Inquiry Unit

Fax: +1 855 404 9091
E.164: +18554049091

Toll-free number; service and international charges may still apply.

Trace a missing or lost issued refund

Use only when: Individual refund trace: District of Columbia, Idaho, Illinois, Pennsylvania, Rhode Island. These fax lines accept Form 3911 only. Follow IRS waiting periods and do not submit a duplicate trace already initiated by phone. Individual and business refunds have different routing. Foreign addresses, territories, APO/FPO, Form 2555/4563 filers and dual-status individuals use the special Austin route.

[Current submission instructions](https://www.irs.gov/forms-pubs/about-form-3911) — reviewed 2026-10-04

## Form 3911 — Ogden Business Refund Inquiry Unit

Fax: +1 855 578 2550
E.164: +18555782550

Toll-free number; service and international charges may still apply.

Trace a missing or lost issued refund

Use only when: Business refund trace: Alaska, Arizona, California, Colorado, Hawaii, Idaho, Iowa, Kansas, Minnesota, Missouri, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, South Dakota, Texas, Utah, Washington, Wisconsin, Wyoming. These fax lines accept Form 3911 only. Follow IRS waiting periods and do not submit a duplicate trace already initiated by phone. Individual and business refunds have different routing. Foreign addresses, territories, APO/FPO, Form 2555/4563 filers and dual-status individuals use the special Austin route.

[Current submission instructions](https://www.irs.gov/forms-pubs/about-form-3911) — reviewed 2026-10-04

## Form 3911 — Cincinnati Business Refund Inquiry Unit

Fax: +1 855 307 3124
E.164: +18553073124

Toll-free number; service and international charges may still apply.

Trace a missing or lost issued refund

Use only when: Business refund trace: Alabama, Arkansas, Connecticut, Delaware, District of Columbia, Florida, Georgia, Illinois, Indiana, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Mississippi, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, West Virginia. These fax lines accept Form 3911 only. Follow IRS waiting periods and do not submit a duplicate trace already initiated by phone. Individual and business refunds have different routing. Foreign addresses, territories, APO/FPO, Form 2555/4563 filers and dual-status individuals use the special Austin route.

[Current submission instructions](https://www.irs.gov/forms-pubs/about-form-3911) — reviewed 2026-10-04

## What to include in your fax to Internal Revenue Service

Use Form SS-4 for an EIN application, Form 2553 for an S corporation election, Form 2848 for power of attorney, or Form 8821 for tax information authorization. Each has its own eligibility and routing rules. Include only the attachments required by that form. A notice response should follow the instructions and fax number on the notice.

## Check the destination and prepare your cover page

Identify the form, intended IRS unit, your callback and return fax numbers, and page count. Follow the current form instructions for signatures and identifying information. Do not put unnecessary tax information on the cover page.

Check the official source and recipient instructions before sending. A reviewed source confirms a published number, not live availability.

## Confirm delivery and follow up with Internal Revenue Service

These are fax destinations, not voice support lines. Keep the transmission result and a copy of the documents. Confirm with the receiving department that the packet is complete and can be processed; a delivery receipt does not establish acceptance or a decision. Check with that department before sending a duplicate.

## How to fax Internal Revenue Service without a fax machine

Prepare a legible PDF, verify the department and number, review the pages and authorize sending. DearFax supports [online sending](https://dearfax.com/send-fax-online) and workflows with [ChatGPT](https://dearfax.com/chatgpt) or [Codex](https://dearfax.com/codex) through [MCP](https://dearfax.com/mcp). Retain the transmission result.

## Frequently asked questions

### What Internal Revenue Service fax number should I use?

Start with the IRS fax number finder. The form, business location, sender location or state can change the destination. A number for one form is not a general IRS fax number. Instructions on a notice or from your assigned IRS employee take precedence for that case.

### Does a delivery receipt mean the IRS accepted my filing?

No. A fax delivery result reports transmission, not acceptance, processing or a decision by the IRS.

### Which number should I use for Form SS-4?

Use the SS-4 finder. The principal business or legal residence determines the route, and international applications also depend on where you send from.

### Can I request an IRS 147C letter by sending a fax?

The 147C workflow starts by contacting the IRS and completing its identity and authority checks. If the IRS offers fax delivery, provide a receiving number. Do not send a 147C request to an SS-4 or tax-filing fax simply because it belongs to the IRS.

### What documents can I fax to Internal Revenue Service?

Use Form SS-4 for an EIN application, Form 2553 for an S corporation election, Form 2848 for power of attorney, or Form 8821 for tax information authorization. Each has its own eligibility and routing rules. Include only the attachments required by that form. A notice response should follow the instructions and fax number on the notice.

### What should I put on a fax cover page for Internal Revenue Service?

Identify the form, intended IRS unit, your callback and return fax numbers, and page count. Follow the current form instructions for signatures and identifying information. Do not put unnecessary tax information on the cover page.

### How can I fax Internal Revenue Service without a fax machine?

Prepare your documents as a legible PDF and confirm the recipient’s submission requirements. You can use DearFax in your browser or prepare the fax with ChatGPT or Codex through MCP. Review the number and pages before authorizing the send, then keep the transmission result. Delivery does not confirm that the recipient accepted or processed your request.

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