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.
For social media updates, follow us on our IRS Twitter and LinkedIn pages.
Reminder from the #IRS: Quarterly estimated tax payments are due by today, June 15. #TaxPros, if your clients are self-employed or earn income without withholding, now’s the time to prepare. Learn more: https://t.co/FNNZUlGN6l
— IRS Tax Pros (@IRStaxpros) June 15, 2026
#IRS Chief Executive Officer Frank Bisignano recognizes World Elder Abuse Awareness Day by honoring older adults, highlighting tax benefits available to seniors, and reminding taxpayers how to avoid scams that target older Americans. #StopGovImposters https://t.co/3UKUjRL5ws
— IRSnews (@IRSnews) June 15, 2026
Donating to a charity? Use an #IRS online search feature to help you verify that the charity is legitimate before you give. Visit: https://t.co/4UMIOqifvM pic.twitter.com/soAw0EH7j9
— IRSnews (@IRSnews) June 15, 2026