Federal Court Affirms IRS Power to Assess Steep Penalties for Unreported Foreign Gifts

SAN FRANCISCO – A federal court handed the Internal Revenue Service a significant victory on May 4, 2026, ruling that the agency has the statutory authority to administratively assess and collect steep penalties from U.S. taxpayers who fail to report large gifts from foreign sources on time.

The decision, issued by the U.S. District Court for the Northern District of California in the case of Zhang v. Internal Revenue Service, reinforces the IRS’s powerful enforcement capabilities regarding international tax compliance. The ruling confirms that the agency can levy penalties of up to 25% of the value of an unreported foreign gift without first needing to sue the taxpayer in court, a decision that has significant implications for U.S. persons with family or financial ties abroad.

The case centers on Jinming Zhang, a U.S. resident who received approximately $287,100 in wedding gifts from her family in China in 2017. While these gifts are not considered taxable income in the United States, they trigger a reporting requirement. U.S. persons must file Form 3520, Annual Return to Report Transactions with Foreign Trusts and Receipt of Certain Foreign Gifts, for any year in which they receive more than $100,000 from a nonresident alien individual or foreign estate.

According to court documents, Zhang timely filed her 2017 income tax return using TurboTax but was unaware of the Form 3520 requirement and did not include it. After learning of the obligation in 2018, she submitted the form late in October of that year. In November 2020, the IRS responded by assessing a penalty of $71,777, the maximum 25% allowed under Internal Revenue Code § 6039F.

Zhang appealed the penalty, arguing she had reasonable cause for the late filing. The IRS Independent Office of Appeals rejected her request for a full abatement but reduced the penalty by 20% to $57,422 in 2022. Zhang paid the reduced penalty in April 2024 and subsequently filed a lawsuit for a full refund after the IRS did not act on her claim within six months.

Zhang’s central legal argument attempted to extend the reasoning from a 2023 U.S. Tax Court case, Farhy v. Commissioner. In Farhy, the court found that the IRS lacked the statutory authority to assess certain penalties related to other international information returns. The argument was that without explicit congressional authorization to make a penalty “assessable,” the IRS could not use its standard administrative procedures—such as placing liens on property or levying bank accounts—to collect. Instead, the government would have to file a civil lawsuit, a more burdensome process.

However, Judge Araceli Martínez-Olguín rejected this line of reasoning as it applied to foreign gift reporting. The court dismissed Zhang’s claim that the § 6039F penalty was not assessable, thereby distinguishing it from the penalties at issue in Farhy. The ruling also dismissed Zhang’s challenges that the penalty violated the Administrative Procedure Act and the Eighth Amendment’s Excessive Fines Clause.

This decision solidifies the IRS's position that late-filing penalties for Form 3520 are immediately assessable, giving the agency a powerful and efficient tool for enforcement. The penalty structure itself is severe: 5% of the total gift amount for each month the form is late, capped at 25%. For Zhang, a simple reporting oversight on a non-taxable gift resulted in a penalty of over $57,000.

In our experience, the Zhang case is a crucial reminder of how easily taxpayers with international connections can fall into costly compliance traps. The penalty is deliberately harsh to compel disclosure, and this ruling shuts down a promising legal argument that might have offered relief. We often see clients who receive substantial financial help from family abroad for major life events like buying a home, starting a business, or paying for education, without realizing a U.S. reporting obligation exists. The IRS’s stance, now backed by the court, is that ignorance of these complex rules is no excuse. This decision underscores that proactive and precise reporting is the only effective defense against penalties that are often disproportionate to the underlying transaction. Navigating these requirements is a core part of our tax preparation and compliance services at C&S Finance Group LLC, as preventing these issues is far less costly than resolving them after the fact. For guidance on foreign gift reporting and other international compliance matters, business owners and individuals can contact C&S Finance Group LLC at csfinancegroup.com.

While the court’s ruling on the IRS’s assessment authority is a major setback for the taxpayer, the lawsuit is not entirely concluded. According to reports, the case partially survived the IRS’s motion to dismiss, meaning other aspects of the refund claim may proceed. Tax professionals will be closely watching for further developments, particularly any arguments related to what constitutes “reasonable cause” for penalty abatement, an issue that remains a critical, fact-specific defense for taxpayers in-the-know taxpayers.