Recent IRS Criminal Investigation (“IRS-CI”) data shows a notable increase in tax-related investigations, prosecution referrals, and enforcement activity. While most IRS-related tax disputes remain civil matters, the IRS continues to devote significant resources to identifying and prosecuting cases involving suspected fraud, tax evasion, and other financial crimes.
Understanding what triggers a criminal investigation—and how it differs from a civil audit—may help taxpayers recognize risks before they become serious problems.
What Exactly Is IRS-CI?
IRS-CI is a law enforcement arm of the Internal Revenue Service. Unlike revenue agents who conduct audits and examinations, IRS-CI special agents investigate potential criminal violations of the Internal Revenue Code and related financial crimes. These investigations often involve allegations such as tax evasion, filing false tax returns, money laundering, and structuring transactions to avoid reporting requirements. If sufficient evidence exists, IRS-CI may recommend prosecution to the U.S. Department of Justice.
Why Is IRS-CI Enforcement Activity Increasing?
Several factors likely contributed to heightened enforcement activity. First, the IRS has received additional funding and resources in recent years, which has allowed it to expand investigative efforts. Second, advances in data analytics likely make it easier for the government to identify inconsistencies between tax returns, bank records, payroll filings, and third-party reporting.
The government is also increasingly focused on financial transparency. Tax violations often serve as an entry point into broader investigations involving fraud, embezzlement, healthcare fraud, public corruption, or money laundering.
How Do IRS Criminal Cases Usually Begin?
While taxpayers may assume criminal investigations start with search warrants or surprise visits from federal agents, in reality, many cases begin much more quietly.
Civil Audits
One of the most common sources of a criminal referral is an IRS civil audit. If an examiner uncovers evidence suggesting intentional misconduct rather than simple error, the matter may be referred for criminal review.
Whistleblower Reports
Current and former employees, business partners, and competitors may report suspected tax violations through various whistleblower programs.
Financial Institution Reporting
Banks and financial institutions regularly submit reports regarding certain transactions and account activity. Unusual patterns may attract regulatory attention.
Payroll Tax Issues
The IRS places particular emphasis on employment tax compliance. Businesses that withhold payroll taxes but fail to remit them may face significant civil and criminal exposure.
What Distinguishes Civil and Criminal Problems?
Not every tax mistake is a crime. Generally, the key distinction is intent. Civil tax disputes typically involve negligence, misunderstanding of tax rules, poor recordkeeping, or disagreements over reporting positions. Criminal investigations, however, commonly focus on evidence that a taxpayer knowingly and willfully violated tax laws.
What is the Importance of Early Action?
The earlier potential tax issues are addressed, the more options may be available.
In some circumstances, taxpayers may correct filing errors, address reporting deficiencies, or explore voluntary disclosure options before enforcement activity escalates. Waiting until a criminal investigation is underway may significantly limit resolution options available. Businesses should also conduct periodic reviews of payroll tax compliance, financial reporting procedures, and internal controls to identify potential risks before government agencies do.
Final Thoughts
The recent increase in IRS-CI activity serves as a reminder that tax compliance is not merely an administrative obligation—it may carry significant consequences. While most taxpayers will never face a criminal tax investigation, when intentional misconduct is suspected, the consequences may include substantial penalties, reputational damage, and imprisonment.
