A Littleton man, Thuan Bui, has been sentenced to 36 months in federal prison for his role in preparing false tax documents. The U.S. Attorney’s Office for the District of Colorado announced that Bui, aged 60, received the statutory maximum sentence after pleading guilty to aiding or assisting in the preparation of false documents. In addition to his prison term, he will face one year of supervised release and a $50,000 fine.
The plea agreement revealed that from approximately 2016 to 2021, Bui ran a tax preparation business under various names. He misled clients by claiming to be a certified public accountant and consistently understated their tax liabilities through inflated or fictitious expenses on Schedule C forms.
Acting United States Attorney J. Bishop Grewell stated, "This defendant willfully and repeatedly abused his clients’ trust when his job was to help them accurately file their annual tax returns." He urged taxpayers to remain vigilant during the ongoing tax season.
Amanda Prestegard, Special Agent in Charge at IRS-Criminal Investigations Denver Field Office, commented on the case: "Tax preparers are entrusted to file accurate and truthful tax returns on behalf of their clients... Bui violated that trust and federal tax laws in the process."
The sentencing was overseen by United States District Court Judge Regina M. Rodriguez. The investigation was conducted by IRS-Criminal Investigation with Assistant United States Attorney Rebecca Weber handling the prosecution.