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Internal Revenue Service (IRS) - Centralized Insolvency Operation fax number

(844) 250-2035

Centralized Insolvency Operation

Used for: Sending bankruptcy-related deadlines and related claim information to the IRS Centralized Insolvency Operation (CIO) via fax; CIO handles bankruptcy case administration and notices.

Fax destination details

Department
Centralized Insolvency Operation
Purpose
Sending bankruptcy-related deadlines and related claim information to the IRS Centralized Insolvency Operation (CIO) via fax; CIO handles bankruptcy case administration and notices.
Voice phone
800-973-0424

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