Office of Investigations Divisions

Field Offices

The Field Divisions conduct investigations that protect the Department of the Treasury’s ability to collect revenue owed to the Federal Government. In order to achieve this, the Office of Investigations (OI) administers investigative programs that protect the integrity of Federal tax administration and detect and prevent fraud and other misconduct within Internal Revenue Service (IRS) programs. This includes investigating allegations of criminal violations and administrative misconduct by IRS employees, as well as protecting the IRS against external attempts to corrupt or threaten its employees.

Cybercrime Investigations Division

The Cybercrime Investigations Division is responsible for investigating intrusions, manipulations, compromises of IRS computer networks, and external cyber-based actions which interfere with the IRS’s ability to conduct electronic tax administration. They also conduct forensic examinations of digital evidence.

Technical and Forensic Science Division

The Technical and Forensic Science Division functions support field investigations through the use of techniques from multiple forensic disciplines such as latent print examination, forensic examinations of questioned documents, and enhancements to audio and visual evidence. This division also has oversight of TIGTA’s technical investigations, radio communications, and body worn cameras.

Fraud and Schemes Division

The Fraud and Schemes Division conducts proactive investigations to detect internal and external threats against Federal tax administration, conducts complex fraud investigations, provides support to Field Division investigations, and develops procurement fraud investigations.

Operations Division

The Operations Division provides oversight and guidance on policy-related issues, statistics and analysis of investigative performance measures, training programs administered throughout OI, fleet management, and officer safety equipment.

Special Investigations Unit

The Special Investigations and Program Division conducts sensitive investigations pertaining to TIGTA employees, IRS Senior Executive Service, and matters of congressional interest. The division also manages our hotline and collects and evaluates threat-related intelligence.

If you believe you have information within OI’s investigative jurisdiction, please submit the information here.