Critical Development for Taxing Immigrants in the U.S.

The U.S. Court of Appeals in Washington D.C. upheld a lower court ruling that halted the Internal Revenue Service's (IRS) transfer of taxpayer address information to the Immigration and Customs Enforcement (ICE) unit. The three-judge panel concluded that the data‑sharing method implemented during the Trump administration failed to meet federal privacy rules.

47,289 Records Transferred to ICE

According to court records, the IRS shared a total of 47,289 taxpayer records in 2025 under ICE's requests. The information was requested for use in immigration procedures within the framework of an agreement between the agencies. The court ruled that those shares did not comply with the conditions stipulated by federal tax‑privacy provisions.

ICE Asked for 1.28 Million People

In July 2025, ICE requested the IRS to verify the last known addresses of approximately 1.28 million people. Those individuals were added to the request list as persons suspected of lacking legal status in the United States. The IRS, after conducting checks on its own tax records, forwarded address information for thousands of people to ICE.

Legal Condition Debate Over Address Data

The appellate court said that one of the most significant problems in the IRS's implementation is that it does not require ICE to provide a real and complete address for each person. In the method used, entering a five- or nine-digit number into the address field could suffice; that number did not have to be a real ZIP code. The court assessed that this method does not meet the individual review and verification mechanisms mandated by federal law.

Privacy Rule in Tax Information

At the core of the decision is the strong protection of taxpayers' information under federal law. In particular, Section 6103(i)(2) of the Internal Revenue Code limits the circumstances in which the IRS can share tax information with other federal agencies and requires certain conditions to be met. The court ruled that the IRS's application to ICE does not align with these conditions.

Court Highlights Lack of Individual Review

The appellate panel said that the IRS's assessment of millions of records through an automated system does not ensure that each taxpayer's information is shared in compliance with legal requirements. In the ruling written by Judge Cornelia Pillard, it was emphasized that the agency's practice allows many records to be processed without individual review.

What Does the Decision Mean for Immigrants?

The ruling, which has long been a topic among immigrants filing tax returns in the United States, brought the question again to the forefront: 'If I file a tax return, will my information go to ICE?' The current court decision blocks the IRS from transferring taxpayers' addresses to ICE under this program. However, the ruling does not mean that the IRS cannot share information with other federal agencies under any circumstances. The limited sharing exceptions set out in federal law remain in force.

The Case's History: Rules Tracing Back to Watergate

Existing federal protections for the confidentiality of tax information were strengthened after the Watergate scandal during former President Richard Nixon's administration. Congress introduced stricter conditions on the IRS's data transfers to prevent arbitrary sharing of taxpayer information among government agencies. The appellate court also highlighted the importance of these legal safeguards in its ruling.

No Comment from IRS or DHS

According to Reuters, the IRS and the Department of Homeland Security, which oversees ICE, did not respond to requests for comment on the ruling. The appellate court's decision upheld the lower court ruling that had halted data sharing, while also concluding the Trump administration's legal challenge to the program.