{
  "name": "IRS Fax Numbers Dataset",
  "description": "A curated, citable list of IRS form fax numbers verified from official irs.gov form instructions and where-to-file pages, plus the common forms the IRS does NOT accept by fax. Many IRS forms are routed to different fax numbers by the filer's state or processing center, so region mappings are included where they apply.",
  "version": "2026-06-08",
  "lastVerified": "2026-06-08",
  "license": "CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)",
  "source": "https://www.fax-flow.com/resources/irs-fax-numbers-dataset",
  "attribution": "Data compiled by FaxFlow (https://www.fax-flow.com). If you reuse this dataset, please keep an attribution link to https://www.fax-flow.com/resources/irs-fax-numbers-dataset",
  "note": "Not affiliated with or endorsed by the IRS. Fax numbers change and are frequently routed by state — always verify on the official form instructions at irs.gov before sending. This is not tax advice.",
  "faxable": [
    {
      "form": "SS-4",
      "purpose": "Application for Employer Identification Number (EIN)",
      "faxable": true,
      "routing": "by-location",
      "numbers": [
        { "fax": "855-641-6935", "appliesTo": "Principal business, office, agency, or legal residence in one of the 50 states or the District of Columbia" },
        { "fax": "855-215-1627", "appliesTo": "No legal residence, principal place of business, or principal office/agency in any state — applying from within the U.S." },
        { "fax": "304-707-9471", "appliesTo": "No legal residence, principal place of business, or principal office/agency in any state — applying from outside the U.S." }
      ],
      "source": "https://www.irs.gov/filing/where-to-file-your-taxes-for-form-ss-4",
      "sourceUpdated": "2026-04-28"
    },
    {
      "form": "2553",
      "purpose": "Election by a Small Business Corporation (S-corporation election)",
      "faxable": true,
      "routing": "region",
      "numbers": [
        { "fax": "855-887-7734", "center": "Kansas City", "appliesTo": "Eastern states: CT, DE, DC, GA, IL, IN, KY, ME, MD, MA, MI, NH, NJ, NY, NC, OH, PA, RI, SC, TN, VT, VA, WV, WI" },
        { "fax": "855-214-7520", "center": "Ogden", "appliesTo": "Western states: 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, WY" }
      ],
      "source": "https://www.irs.gov/instructions/i2553",
      "sourceUpdated": "2026-04-30"
    },
    {
      "form": "2848",
      "purpose": "Power of Attorney and Declaration of Representative (CAF unit)",
      "faxable": true,
      "routing": "region",
      "numbers": [
        { "fax": "855-214-7519", "center": "Memphis", "appliesTo": "Eastern states: 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, WV" },
        { "fax": "855-214-7522", "center": "Ogden", "appliesTo": "Western states: AK, AZ, CA, CO, HI, ID, IA, KS, MN, MO, MT, NE, NV, NM, ND, OK, OR, SD, TX, UT, WA, WI, WY" },
        { "fax": "855-772-3156", "center": "Philadelphia (International CAF Team)", "appliesTo": "APO/FPO, American Samoa, CNMI, Guam, U.S. Virgin Islands, Puerto Rico, a foreign country, or outside the U.S. (also 304-707-9785 from outside the U.S.)" }
      ],
      "source": "https://www.irs.gov/instructions/i2848",
      "sourceUpdated": "2026-04-30"
    },
    {
      "form": "8821",
      "purpose": "Tax Information Authorization (CAF unit) — same routing as Form 2848",
      "faxable": true,
      "routing": "region",
      "numbers": [
        { "fax": "855-214-7519", "center": "Memphis", "appliesTo": "Eastern states: 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, WV" },
        { "fax": "855-214-7522", "center": "Ogden", "appliesTo": "Western states: AK, AZ, CA, CO, HI, ID, IA, KS, MN, MO, MT, NE, NV, NM, ND, OK, OR, SD, TX, UT, WA, WI, WY" },
        { "fax": "855-772-3156", "center": "Philadelphia (International CAF Team)", "appliesTo": "APO/FPO, American Samoa, CNMI, Guam, U.S. Virgin Islands, Puerto Rico, a foreign country, or outside the U.S. (also 304-707-9785 from outside the U.S.)" }
      ],
      "source": "https://www.irs.gov/instructions/i8821",
      "sourceUpdated": "2026-04-30"
    },
    {
      "form": "3911",
      "purpose": "Taxpayer Statement Regarding Refund (refund trace) — individual filers, by state of residence",
      "faxable": true,
      "routing": "region",
      "numbers": [
        { "fax": "855-253-3175", "center": "Andover", "appliesTo": "ME, MD, MA, NH, VT" },
        { "fax": "855-275-8620", "center": "Atlanta (Chamblee, GA)", "appliesTo": "GA, IA, KS, KY, VA" },
        { "fax": "855-203-7538", "center": "Austin", "appliesTo": "FL, LA, MS, OK, TX — and a foreign country, U.S. possession/territory, APO/FPO, filers of Form 2555 or 4563, or a dual-status alien" },
        { "fax": "855-297-7736", "center": "Brookhaven (Holtsville, NY)", "appliesTo": "NY" },
        { "fax": "855-332-3068", "center": "Fresno", "appliesTo": "AK, AZ, CA, CO, HI, NV, NM, OR, UT, WA, WI, WY" },
        { "fax": "855-344-9993", "center": "Kansas City", "appliesTo": "AR, CT, DE, IN, MI, MN, MO, MT, NE, NJ, OH, WV" },
        { "fax": "855-580-4749", "center": "Memphis", "appliesTo": "AL, NC, ND, SC, SD, TN" },
        { "fax": "855-404-9091", "center": "Philadelphia", "appliesTo": "DC, ID, IL, PA, RI" }
      ],
      "businessNumbers": [
        { "fax": "855-307-3124", "center": "Cincinnati", "appliesTo": "Business entities in states east of the Mississippi, plus AR and LA" },
        { "fax": "855-578-2550", "center": "Ogden", "appliesTo": "Business entities in states west of the Mississippi, plus WI" }
      ],
      "source": "https://www.irs.gov/forms-pubs/about-form-3911",
      "sourceUpdated": "2025-12-04"
    },
    {
      "form": "4506-T",
      "purpose": "Request for Transcript of Tax Return (individual transcripts: 1040 series, W-2, 1099). Form 4506-T-EZ uses these same three numbers. Business transcripts route differently — see source.",
      "faxable": true,
      "routing": "region",
      "numbers": [
        { "fax": "855-587-9604", "center": "Austin", "appliesTo": "AL, AZ, AR, FL, GA, LA, MS, NM, NC, OK, SC, TN, TX, a foreign country, American Samoa, Puerto Rico, Guam, CNMI, U.S. Virgin Islands, or APO/FPO" },
        { "fax": "855-821-0094", "center": "Kansas City", "appliesTo": "CT, DE, DC, IL, IN, IA, KY, ME, MD, MA, MN, MO, NH, NJ, NY, PA, RI, VT, VA, WV, WI" },
        { "fax": "855-298-1145", "center": "Ogden", "appliesTo": "AK, CA, CO, HI, ID, KS, MI, MT, NE, NV, ND, OH, OR, SD, UT, WA, WY" }
      ],
      "source": "https://www.irs.gov/pub/irs-pdf/f4506t.pdf",
      "sourceUpdated": "Rev. 4-2025"
    },
    {
      "form": "14039",
      "purpose": "Identity Theft Affidavit",
      "faxable": true,
      "routing": "single",
      "numbers": [
        { "fax": "855-807-5720", "appliesTo": "All filers not responding to a specific IRS notice. If you are responding to an IRS notice or letter that lists a fax number, send it to the number on that notice instead." }
      ],
      "source": "https://www.irs.gov/pub/irs-pdf/f14039.pdf",
      "sourceUpdated": "Rev. 2-2026"
    },
    {
      "form": "911",
      "purpose": "Request for Taxpayer Advocate Service (TAS) Assistance",
      "faxable": true,
      "routing": "single",
      "numbers": [
        { "fax": "855-828-2723", "appliesTo": "Domestic (centralized national TAS fax)" },
        { "fax": "304-707-9793", "appliesTo": "From overseas (not toll-free)" }
      ],
      "source": "https://www.irs.gov/pub/irs-pdf/f911.pdf",
      "sourceUpdated": "Rev. 6-2026"
    }
  ],
  "notFaxable": [
    { "form": "9465", "purpose": "Installment Agreement Request", "faxable": false, "note": "Not accepted by fax — mail or e-file only.", "source": "https://www.irs.gov/forms-pubs/about-form-9465" },
    { "form": "4868", "purpose": "Application for Automatic Extension of Time to File", "faxable": false, "note": "Not accepted by fax — mail or e-file only.", "source": "https://www.irs.gov/forms-pubs/about-form-4868" },
    { "form": "1040-X", "purpose": "Amended U.S. Individual Income Tax Return", "faxable": false, "note": "Not accepted by fax — mail or e-file only.", "source": "https://www.irs.gov/forms-pubs/about-form-1040x" },
    { "form": "656", "purpose": "Offer in Compromise", "faxable": false, "note": "Not accepted by fax — mail only.", "source": "https://www.irs.gov/forms-pubs/about-form-656" },
    { "form": "8822", "purpose": "Change of Address", "faxable": false, "note": "Not accepted by fax — mail only.", "source": "https://www.irs.gov/forms-pubs/about-form-8822" },
    { "form": "8832", "purpose": "Entity Classification Election", "faxable": false, "note": "Not accepted by fax — mail only.", "source": "https://www.irs.gov/forms-pubs/about-form-8832" },
    { "form": "7004", "purpose": "Application for Automatic Extension of Time To File Certain Business Income Tax Returns", "faxable": false, "note": "Not accepted by fax — mail or e-file only.", "source": "https://www.irs.gov/forms-pubs/about-form-7004" }
  ]
}