There are aspects of paying taxes that may reveal illegal activities, and if your tax return prompts questions, you could find yourself the subject of an IRS investigation. According to the IRS, the federal agency conducts investigations, not only into possible tax fraud, but also when there is a suspicion of money laundering and other fraudulent activities.
Your tax returns may not be the trigger of an investigation. The IRS also investigates based on information provided by the public, by law enforcement agencies and by U.S. Attorneys offices all over the country.
Before an official federal criminal investigation is launched, the agency requires certain steps to be taken. A special agent analyzes relevant information during a primary investigation. Next, the special agent’s supervisor evaluates the results of the preliminary investigation and approves or declines a further investigation. If approved, the information goes before the head of the office, who may then approve a criminal investigation.