Unreported / Non-Citable
Background
John Anthony Castro founded Castro and Company LLC in 2014, a firm offering tax preparation and consulting services. Though Castro was not licensed to practice law, he held an L.L.M. in taxation and was registered with the IRS as an enrolled agent, allowing him to represent clients in tax matters. Between 2016 and 2024, Castro operated a scheme to defraud the United States by preparing and filing false tax returns for unsuspecting taxpayers. He marketed his services by promising refunds substantially higher than competitors and offered to split the refund as his fee.
Castro employed multiple individuals and used two primary methods to inflate refunds: falsifying Schedule C business expenses to create net losses, or falsifying Schedule A deductions to reduce taxable income. Clients would complete questionnaires and upload documents, but Castro alone had authority to file returns and did so without allowing clients to review them beforehand. When refunds arrived, Castro deposited checks into his operating account before distributing clients’ promised shares. Over 200 IRS audits resulted from returns Castro filed. Following an investigation that began in 2018, Castro was indicted on January 3, 2024, on 33 counts of aiding and assisting in the preparation and presentation of false and fraudulent tax returns under 26 U.S.C. § 7206(2).
After a five-day bench trial, Castro was convicted on all 33 counts. The district court imposed a base offense level of 26 and applied four sentencing enhancements totaling ten levels: two levels for being in the business of preparing tax returns; two for sophisticated means; four for being an organizer or leader involving five or more participants or otherwise extensive activity; and two for obstructing justice. The court sentenced Castro to 188 months’ imprisonment followed by one year of supervised release.
The Court’s Holding
The Fifth Circuit affirmed Castro’s conviction and the application of sentencing enhancements. On Castro’s Brady claim, the court held that evidence he alleged was suppressed—pertaining to witness Linda Rivera’s marital status, a tax lien on her husband’s account, and a purported immunity agreement—did not constitute Brady material. The court found that Rivera’s marital status was not suppressed because Castro knew she was married; the tax lien was cumulative impeachment evidence already impeached through her false statement on her tax return; and Castro’s assertion of an immunity agreement was wholly conclusory.
Regarding Castro’s Confrontation Clause challenge, the court held that Castro validly waived his right to confront witnesses through written stipulations. Castro agreed in writing to the stipulations, did not dissent from his counsel’s affirmation at trial, and the stipulations were part of legitimate trial strategy to narrow the case to the single issue of whether Castro’s conduct was willful. The court found the record clearly supported this valid waiver, noting that Castro’s proposed findings of fact stated “this case necessitates no fact finding apart from the ultimate issue of guilt or innocence,” and his closing argument confirmed willfulness was the sole disputed element.
On sentencing, the court affirmed the four-level leadership enhancement under U.S.S.G. § 3B1.1(a), finding Castro’s scheme was “otherwise extensive” under the Guidelines. The court noted the scheme involved multiple employees (family members, attorneys, and a CPA), resulted in over $15 million in estimated tax loss, and could not have succeeded without these participants’ involvement, whether knowing or unknowing. The court also affirmed the two-level obstruction of justice enhancement under § 3C1.1, based on Castro’s filing of frivolous lawsuits against IRS agents and investigators.
Key Takeaways
- Brady obligations do not extend to impeachment evidence that is cumulative to evidence already used to impeach a witness’s credibility.
- A defendant may validly waive Confrontation Clause rights through written stipulations to evidence if he does not dissent and the stipulations constitute legitimate trial strategy.
- Sentencing enhancements for leadership may apply based on schemes being “otherwise extensive,” considering unknowing as well as knowing participants and the aggregate harm caused.
- Filing frivolous lawsuits against government investigators may support sentencing enhancements for obstruction of justice.
Why It Matters
This decision clarifies important doctrines in federal criminal procedure and sentencing. For prosecutors, it confirms that tax fraud schemes can be proven through business records and that Brady obligations do not require disclosure of all potential impeachment evidence—only evidence that would be the defendant’s sole avenue of impeachment. For defendants and defense counsel, the opinion reinforces that waivers of constitutional rights, including the right to confront witnesses, may be inferred from counsel’s litigation strategy and lack of dissent, even without explicit defendant approval. The court’s broad interpretation of “otherwise extensive” criminal activity for sentencing purposes means that schemes involving many unknowing participants—such as the clients whose returns Castro falsified—can trigger substantial enhancements regardless of the number of knowing conspirators.