Directory information, not recipient confirmation. Fax numbers can change and differ by department, location, form, or plan. Confirm this destination directly with Internal Revenue Service (IRS) before sending sensitive documents. FaxFlow is not affiliated with this organization.
Internal Revenue Service (IRS) fax number
(855) 233-8558
Cincinnati Centralized Innocent Spouse Operation (CCISO)
Used for: Fax Form 8857 (Innocent Spouse Relief) and attachments to CCISO; CCISO will date-stamp the faxed Form 8857 and may acknowledge receipt via a return fax.
Fax destination details
- Department
- Cincinnati Centralized Innocent Spouse Operation (CCISO)
- Purpose
- Fax Form 8857 (Innocent Spouse Relief) and attachments to CCISO; CCISO will date-stamp the faxed Form 8857 and may acknowledge receipt via a return fax.
- Form
- Form 8857 — Innocent Spouse Relief - Form 8857
- Address
- Florence, KY 41042
- 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.
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Instructions for completing and submitting Form 8857
Review official form instructionsSources and verification
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