Fax number directory

Fax numbers with links to official sources and the date we checked them. Confirm the number with the recipient before you send.

Sending an IRS form? Find the IRS fax number for your form.

• Government

  IRS Form 2553 (S corporation election)

  Fax Form 2553 to elect S corporation status. Route by where the corporation’s principal business, office, or agency is located (Kansas City or Ogden), per the IRS chart.

  Verified October 24, 2026

• Government

  IRS Form 2848 (Power of Attorney)

  Fax Form 2848 to the CAF unit for your state so someone else can represent you before the IRS. Use the number for where you live, not where the tax matter is handled, unless line 4 of the form says otherwise.

  Verified October 24, 2026

• Government

  IRS Form 4506‑T (tax transcript)

  Fax Form 4506-T to ask for a tax transcript. Individual transcripts (Form 1040, W-2, and Form 1099) and other transcripts go to different RAIVS teams.

  Verified October 27, 2026

• Government

  IRS Form 8821 (Tax Information Authorization)

  Fax Form 8821 so the IRS can discuss your tax information with someone you name. Routing matches Form 2848: use the CAF fax number for your state of residence.

  Verified October 24, 2026

• Government

  IRS Form SS‑4 (EIN application)

  Fax Form SS-4 to apply for an Employer Identification Number when you cannot apply online. If you include a return fax number, the IRS can fax the EIN back in about four business days.

  Verified October 24, 2026

Looking for government forms? Fax the government. Contacting Congress? US senators fax numbers.