Criminal Investigator (Special Agent)
Office of the Inspector General
Posted: April 8, 2026 (0 days ago)
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Office of the Inspector General for Tax Administration
Department of the Treasury
Location
Salary
$64,277 - $109,122
per year
Type
Closes
Base salary range: $62,107 - $80,737
Typical requirements: 1 year specialized experience at GS-10. Ph.D. or equivalent doctoral degree, or 3 years graduate study.
Note: Actual salary includes locality pay (15-40%+ depending on location).
This job is for a special agent who investigates crimes like fraud and corruption within the IRS to protect tax administration from threats.
It involves conducting detailed probes, gathering evidence, and ensuring the agency's integrity.
Ideal candidates are physically fit individuals with investigative experience or advanced education in law or related fields, who can handle demanding fieldwork and stay calm under pressure.
The mission of the Treasury Inspector General for Tax Administration's (TIGTA) Office of Investigations is to protect the Internal Revenue Service (IRS) from internal and external threats and corruption that could negatively impact the IRS' ability to administer the nation's tax laws.
We detect and deter waste, fraud and abuse in IRS programs and operations and protect the IRS against internal misconduct and corruption as well as external attempts to corrupt or threaten its employees.
You must meet the following requirements by the closing date of this announcement.
Age Requirements: Incumbents selected for Criminal Investigator positions are covered under special law enforcement provisions. This requires that applicants not exceed the maximum age for entry.
The date immediately preceding an applicant's 37th birthday is the final date for selection.
The age restriction does not apply if you served in a Federal civilian (not military) law enforcement officer (FLEO) position covered by special civil service retirement provisions, including early or mandatory retirement.
Medical Requirements: The duties of positions in this series require moderate to arduous physical exertion involving walking and standing, use of firearms, and exposure to inclement weather.
Manual dexterity with comparatively free motion of finger, wrist, elbow, shoulder, hip, and knee joints is required.
Arms, hands, legs, and feet must be sufficiently intact and functioning in order that applicants may perform the duties satisfactorily.
Sufficiently good vision in each eye, with or without correction, is required to perform the duties satisfactorily.
Near vision, corrective lenses permitted, must be sufficient to read printed material the size of typewritten characters.
Hearing loss, as measured by an audiometer, must not exceed 35 decibels at 1000, 2000, and 3000 Hz levels.
Since the duties of these positions are exacting and responsible, and involve activities under trying conditions, applicants must possess emotional and mental stability.
Any physical condition that would cause the applicant to be a hazard to him/her, or others is disqualifying.
AND Specialized experience: For the GS-11, You must have one year of specialized experience at a level of difficulty and responsibility equivalent to the GS-09 grade level in the Federal service.
Specialized experience is defined as: -Performing criminal and administrative investigations; AND -Utilizing various investigative techniques to establish interrelationships of facts or evidence.
OR You may possess a Ph.D. or equivalent doctoral degree, or three full years of progressively higher-level graduate education leading to such a degree or LLM.
Only graduate level education in excess of the first two years 36 semester hours (54 quarter hours) may be combined to be considered for qualifying education.
OR You may qualify on a combination of education and experience.
To combine education and experience, the total percentage of experience at the required grade level compared to the requirement, as well as the percentage of completed education compared to the requirement must equal at least 100 percent.
For the GS-09: Specialized experience is one year at the GS-07 level, or equivalent, that has equipped the applicant with the knowledge, skills, and abilities to perform successfully the duties of the position.
Specialized experience includes working in a trainee capacity performing segments of investigations such as: - Researching legal documents and/or interviewing witnesses to verify facts and obtain specific pieces of information; AND - Securing signed statements, affidavits and documentary evidence; AND - Completing reports for case records.
OR Masters or equivalent graduate degree, or two full years of progressively higher-level graduate education leading to such a degree, or LLB or JD.
From the choices below, select the item that best describes your education and experience.
Only graduate level education in excess of the first 18 semester hours (27 quarter hours) may be combined to be considered for qualifying education.
OR You may qualify on a combination of education and experience.
To combine education and experience, the total percentage of experience at the required grade level compared to the requirement, as well as the percentage of completed education compared to the requirement must equal at least 100 percent.
For the GS-07: Specialized experience is one year at the GS-05 level, or equivalent, that has equipped the applicant with the knowledge, skills, and abilities to perform successfully the duties of this position.
Specialized experience is: -Work in a trainee capacity or other position where experience with basic investigative or analytical techniques and methods was applied to determine case resolution; OR One full year of graduate level education in a related field; OR Superior Academic Achievement based on a bachelors degree that is demonstrated through class standing (upper 1/3 of class), grade point average (2.95/4.0 overall or 3.5/4.0 in major); OR, election to membership in a qualifying national scholastic honor society.
From the choices below, select the item that best describes your education and experience. You may qualify on a combination of education and experience.
To combine education and experience, the total percentage of experience at the required grade level compared to the requirement, as well as the percentage of completed education compared to the requirement must equal at least 100 percent.
Time-in-Grade: In addition to the above requirements, you must meet the following time-in-grade requirement, if applicable: For the GS-11, you must have been at the GS-9 level for 52 weeks.
For the GS-9, you must have been at the GS-7 level for 52 weeks. For the GS-7, you must have been at the GS-5 level for 52 weeks.
Time After Competitive Appointment: Candidates who are current Federal employees serving on a non-temporary competitive appointment must have served at least three months in that appointment.
Major Duties:
This position is located at Office of the Inspector General for Tax Admin, Office of Investigation.
As a Criminal Investigator (Special Agent), you will conduct investigations and proactively investigative initiatives to ensure the integrity of the Internal Revenue Service (IRS) employees, contractors, and other tax professionals; ensure IRS employee infrastructure security; and protect the IRS against attempts to corrupt tax administration .
As a criminal investigator, you will be called upon to spearhead the largest, most complex, and most sensitive criminal and occasionally non-criminal investigations which come under the jurisdiction of the Treasury Inspector General for Tax Administration (TIGTA).
The following are the duties of this position at the GS-13.
If you are selected at a lower grade level, you will have the opportunity to learn to perform all these duties, and will receive training to help you grow in this position.
Plan and coordinate all investigative matters in accordance with Federal laws and regulations as well as agency policies.
Plan and conduct investigations to determine violations of the IRS and Federal laws and regulations. Prepare reports of complex investigations. Apprehend and arrest persons violating U.S.
laws and conducts searches and seizures incident to the arrest when appropriate, by warrant.
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