Appeals Court Blocks Trump-Era IRS Policy Sharing Taxpayer Addresses With Immigration Authorities

A federal appeals court on Tuesday upheld an injunction barring an Internal Revenue Service policy that permitted the agency to share thousands of taxpayer addresses with immigration authorities, affirming that the Trump administration's disclosure practices violated federal statutory law.

The decision, issued by a three-judge panel of the U.S. Court of Appeals for the District of Columbia Circuit, firmly upholds a lower-court ruling that halted the controversial information-sharing protocol established between the nation's revenue service and U.S. Immigration and Customs Enforcement, commonly known as ICE.

According to the appellate panel's ruling, the tax agency had improperly disclosed approximately 47,000 individual taxpayer addresses to immigration officials. The address-sharing pipeline was established under procedural mechanisms adopted by the federal government as part of the Trump administration's broader campaign to expand immigration enforcement across the country.

The interagency initiative formally commenced in July 2025 following an agreement negotiated between the two agencies. Under that framework, the IRS began processing requests submitted by ICE seeking the last known residential addresses for as many as 1.28 million individuals suspected by immigration authorities of living unlawfully in the United States.

To execute the data transfers, the IRS implemented an administrative procedure allowing ICE to retrieve confidential taxpayer location information simply by entering a five- or nine-digit number into a designated address field. The appellate court noted that the tax agency processed these requests even when the submitted number string was not a genuine, valid ZIP code.

This procedural shortcut drew substantial criticism from the appellate judges for bypassing mandatory statutory protections. Writing for the panel, U.S. Circuit Judge Cornelia Pillard observed that the policy automated the review of millions of confidential taxpayer records without providing any individual review or employing any other mechanism to verify compliance with legal prerequisites before releasing personal information.

The interagency data-sharing policy prompted legal challenges from advocacy and taxpayer rights groups, including the Center for Taxpayer Rights and the Main Street Alliance. The organizations initiated a federal lawsuit asserting that the Trump administration's practice unlawfully bypassed core privacy statutes designed to safeguard sensitive taxpayer data.

A federal district court judge initially agreed with the plaintiffs and issued an injunction blocking the disclosure program. However, before the lower court's order took effect to halt the interagency transfers, the IRS had already released a total of 47,289 taxpayer records to ICE officials.

On appeal, the administration of President Donald Trump defended the address-sharing policy and sought to overturn the injunction, arguing that the judicial block substantially hindered federal law enforcement capabilities and compromised the government's ability to execute immigration enforcement priorities.

The D.C. Circuit panel firmly rejected the administration's legal reasoning, emphasizing that executive agencies cannot ignore statutory mandates enacted by lawmakers. Addressing the government's complaints regarding law enforcement limitations, Judge Pillard stated in the court's written opinion that such an objection constituted a gripe with Congress rather than an issue with the court.

The appellate ruling placed significant emphasis on the historical background of federal tax privacy legislation, which was substantially overhauled in the wake of the Watergate scandal during President Richard Nixon's presidency. Following that scandal, congressional investigations revealed widespread political abuses involving the unauthorized dissemination and misuse of confidential taxpayer files by executive branch officials.

In response to those historic abuses, Congress established strict statutory safeguards prohibiting the IRS from disclosing private taxpayer information to other government agencies unless those entities strictly comply with stringent legal requirements. Judge Pillard stated that the procedures implemented under the Trump administration violated federal law in numerous ways, highlighting that the most egregious violation was failing to require ICE to submit an actual taxpayer address.

Skye Perryman, whose liberal legal group Democracy Forward represented the plaintiff organizations in the lawsuit, welcomed the appellate court's decision in a formal statement. Perryman stated that she was pleased the court acted to halt the unlawful practice, pointing out that post-Watergate privacy statutes were specifically created to prevent executive branch abuses of power.

The three-judge appellate panel that affirmed the injunction was composed entirely of jurists appointed by Democratic President Barack Obama, including Judge Pillard, who authored the court's opinion.

Following the issuance of the D.C. Circuit's ruling, neither the Internal Revenue Service nor the U.S. Department of Homeland Security, the parent department overseeing ICE operations, responded to requests for comment regarding the outcome.

The decision establishes a firm legal precedent upholding post-Watergate confidentiality mandates, ensuring that federal tax authorities cannot bypass statutory requirements or automate the bulk release of sensitive taxpayer address records to federal immigration authorities.