The American system of taxation is based on the premise that all income is taxable (which includes illegally earned income). In many instances, proving that a taxpayer willfully attempted to hide income from the Federal Government is an integral part of proving other criminal activity including fraud, money laundering or Bank Secrecy Act violations. Criminal Investigation continues to fulfill the important role of helping to ensure the integrity and fairness of our nations' tax system.
The Internal Revenue Service Criminal Investigation Division conducts criminal investigations regarding alleged violations of the Internal Revenue Code, the Bank Secrecy Act and various money laundering statutes. The findings of these investigations are referred to the Department of Justice for recommended prosecution.
To learn more about careers in Law Enforcement, please visit the Criminal Investigation Special Agent page.
In addition to the Special Agent, Criminal Investigation careers also include Administrative, Investigatory, Information Technology (IT), and Forensic positions. To learn more about these careers, click here.
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Presidents Day week is one of the busiest periods of filing season and calls to #IRS phone lines often spike. Avoid the wait and use online self-service resources that are available 24/7 before, during, and after filing. https://t.co/lO01WTMLAc pic.twitter.com/DIshVBX7EY
— IRSnews (@IRSnews) February 16, 2026
Extended day after-school programs can often lead to a tax benefit. Learn about the Child and Dependent Care tax credit: https://t.co/S2ZixPIsW6 pic.twitter.com/FbsWcP09iG
— IRSnews (@IRSnews) February 16, 2026
With the 2026 filing season underway and increased calls around the Presidents Day holiday, #IRS encourages you to visit https://t.co/kcgZUfN9B4 and use online tools to get fast, convenient help without waiting on hold. https://t.co/lO01WTMLAc pic.twitter.com/S68Mz9i38v
— IRSnews (@IRSnews) February 15, 2026