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Form 12661: Disputed Issue Verification

Product number
Form 12661
Title
Disputed Issue Verification
Type
Forms
Issuing body
Internal Revenue Service (irs.gov)
Revision (per IRS index)
Oct 2015
Open official PDF on irs.gov
The number, title, and revision date above are reproduced verbatim from the official IRS index (captured July 2026). Newer revisions may exist — check irs.gov. This page adds no instructions or commentary. Not tax or legal advice.