OMB control number
Reporting of suspected tax law violations
OMB 1545-1960 · TREAS/IRS.
OMB 1545-1960
Form 3949-A is used by taxpayers to report alleged tax violations. The form will be designed to capture the essential information needed by IRS for an initial evaluation of the report. Submission of the information to be included on the form is entirely voluntary.
The latest form for Reporting of suspected tax law violations expires 2028-06-30 and can be found here.
Latest Forms, Documents, and Supporting Material
Document Name |
|---|
Form and Instruction |
Supporting Statement A |
Form 3949-A Information Referral
Supporting Statement-1545-1960_Clean (003).docx
Information Referral All Historical Document Collections
| Extension without change of a currently approved collection | 2025-04-30 | ||
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Approved without change |
Extension without change of a currently approved collection | 2022-02-28 | |
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Approved without change |
Extension without change of a currently approved collection | 2018-10-30 | |
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Approved without change |
Extension without change of a currently approved collection | 2015-08-31 | |
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Approved without change |
Extension without change of a currently approved collection | 2012-05-29 | |
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Approved without change |
Extension without change of a currently approved collection | 2009-03-24 | |
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Approved without change |
Extension without change of a currently approved collection | 2005-12-01 | |
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Approved without change |
New collection (Request for a new OMB Control Number) | 2005-08-23 |