Cross-Border Tax Fraud Probe Expands Worldwide

Federal investigators are widening efforts to uncover cross-border tax fraud as financial crime totals surge and international cooperation strengthens. Newly released enforcement data show billions of dollars tied to offshore tax evasion schemes and signal a broader crackdown on undisclosed foreign financial accounts within the global tax system.

Federal Investigators Expand Global Tax Fraud Crackdown

Federal authorities have intensified efforts to combat financial crimes following a significant rise in identified violations during the past fiscal year. According to the IRS Criminal Investigation Fiscal Year 2025 Annual Report, released in December 2025, investigators identified $10.59 billion in financial crimes during fiscal year 2025 — a 15.7% increase from the prior year.

Tax fraud represented $4.5 billion of that total, marking an increase of more than 111% from the previous fiscal year. Officials say the rise highlights ongoing tax evasion and non-compliance that contribute to the federal tax gap and undermine the U.S. tax system.

Offshore Accounts and Shell Companies Drive Cross-Border Schemes

Cross-border tax fraud often involves offshore bank accounts, shell companies, or tax havens to conceal assets and avoid reporting income on tax returns. Some cases involve abusive trusts, Ponzi schemes, or other financial arrangements intended to evade tax authorities.

Financial Records Often Reveal Hidden Offshore Assets

Suspicious Activity Reports filed under the Bank Secrecy Act often help investigators detect these schemes. IRS-CI's CI-FIRST initiative — a public-private partnership with financial institutions — addresses Bank Secrecy Act challenges by helping banks understand what information is most useful to investigators. The agency's OFRR initiative further accelerates investigations by streamlining how IRS-CI requests financial records from institutions.

Authorities say tax preparer fraud remains a concern when ghost preparers or individuals without a valid preparer tax identification number submit false returns or claim improper deductions, credits, or refunds.

Major Bank Case Shows Growing International Enforcement

A major enforcement action from fiscal year 2025 involved TD Bank, whose anti-money laundering program allowed more than $670 million in illicit funds to pass through its accounts between 2019 and 2023. The bank pleaded guilty to Bank Secrecy Act and money laundering conspiracy violations and agreed to pay $1.8 billion in penalties to resolve the Department of Justice's investigation. IRS-CI special agents also seized more than $800 million in assets and returned $100 million to crime victims during fiscal year 2025.

Settlement Highlights Consequences for Financial Institutions

The TD Bank case involved cooperation among IRS Criminal Investigation, the Treasury Department, and federal prosecutors. Officials say asset seizures are an important tool for recovering funds linked to financial crimes, with IRS-CI agents seizing more than $800 million in assets in fiscal year 2025 alone.

FATCA and Global Reporting Expand Financial Transparency

International enforcement relies on reporting frameworks such as the Foreign Account Tax Compliance Act and global standards like the Common Reporting Standard. These systems enable the automatic exchange of information and bilateral sharing of data among tax authorities.

Reporting Suspected Tax Fraud and Compliance Responsibilities

Officials encourage voluntary compliance with tax laws and advise taxpayers to work with qualified tax professionals, such as certified public accountants, enrolled agents, or attorneys, who follow professional standards in their practice before the IRS.

Suspected misconduct can be reported through the IRS Whistleblower Office using Form 211 under IRC Section 7623, which allows individuals to submit a claim for violations of the Internal Revenue Code. Concerns about fraud, waste, and abuse can also be reported to the Treasury Inspector General for Tax Administration, which investigates misconduct related to federal tax administration.

Sources 

• IRS Criminal Investigation Fiscal Year 2025 Annual Report 
• TD Bank pleads guilty to Bank Secrecy Act and money laundering conspiracy violations 
• Report of Foreign Bank and Financial Accounts (FBAR) Guidance

‍By William Mc Lee, Editor-in-Chief & Tax Expert—Get Tax Relief Now