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Internal Revenue Service (IRS) fax number
(855) 233-8562
Internal Revenue Service (IRS)
Used for: Fax submissions of tax forms and correspondence to the IRS, including Form 15109 (Combat Zone Tax Deadline Relief).
Fax destination details
- Department
- Internal Revenue Service (IRS)
- Purpose
- Fax submissions of tax forms and correspondence to the IRS, including Form 15109 (Combat Zone Tax Deadline Relief).
- Form
- Form 15109 — Combat Zone Tax Deadline Relief
- Website
- Visit organization website
Before you send
- Confirm that this exact department handles your document or request.
- Check the organization website or call its main line for the current fax number.
- Include a cover sheet and any case, member, claim, or form reference required.
- Keep the delivery confirmation with your submission records.
Fill out Form 15109 and submit via the IRS Document Upload Tool or by fax/mail per IRS instructions; you can fax to 855-233-8562.
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