Appeals Court Blocks IRS From Sharing Tax Data With ICE

A federal appeals court has kept in place a block on an IRS policy that would have let immigration officials tap into taxpayer address data. The ruling lands squarely on a fight over privacy, law enforcement power, and how far agencies can go when they want more tools for deportation efforts.

The U.S. Court of Appeals for the District of Columbia Circuit said the IRS crossed legal lines when it responded to Immigration and Customs Enforcement requests for the last known addresses of 1.28 million suspected illegal migrants. The panel found the agency did not satisfy the strict limits built into federal tax-confidentiality rules, which were written in the wake of Watergate to keep return information tightly guarded.

At the center of the dispute was a policy that allowed ICE to ask for taxpayer information in support of the Trump administration’s immigration crackdown. According to the court record, the IRS had already turned over about 47,000 addresses before the lower court stepped in and shut the practice down.

That earlier decision came after lawsuits argued the data-sharing setup was unlawful from the start. By the time the injunction arrived, the damage was already done, with 47,289 taxpayer records having been sent over. The appeals court left that block intact, rejecting the idea that the government could keep using a shortcut that sidestepped the usual privacy safeguards.

One of the sharpest lines in the ruling came when U.S. Circuit Judge Cornelia Pillard pushed back on the administration’s argument that the court was standing in the way of law enforcement. “But that’s a gripe with Congress, not the court,” she wrote, making clear that if the law is too tight, the fix belongs in Washington, not in a broad agency workaround.

The judge said the IRS failed on several basic requirements, including not forcing ICE to give an actual taxpayer address when making a request. She also said the agency did not demand a real “specific reason” showing why the return information was relevant to a qualifying investigation or proceeding, which the statute requires before any data can be turned loose.

The court was equally critical of how the requests were handled. Pillard said the IRS did not make sure ICE identified a federal employee personally and directly tied to a qualifying investigation, and she pointed out that when ICE sought records on 1.28 million people in the summer of 2025, the same contact person appeared across every request.

That kind of setup, the court said, is exactly the problem. It turns a narrow legal process into something closer to an automated pipeline, reviewing huge volumes of records without real individual review or meaningful checks to make sure every disclosure meets the law.

The panel also found the arrangement would run afoul of privacy protections. In the court’s view, the special data-exchange procedure stripped noncitizens of the same tax-return privacy protections that section 6103 is supposed to guarantee to all taxpayers, creating a separate lane that made their information easier to access and harder to protect.

The administration had argued that blocking the policy made it harder to enforce immigration law. But the court was not persuaded, saying those concerns do not erase the limits Congress already wrote into the tax code. The decision drew a firm line between what immigration authorities want to do and what the law actually allows them to do.

A spokesperson for the Department of Homeland Security said the agency disagreed with the ruling and would keep using lawful tools to locate and remove illegal aliens with final orders of removal. The response shows the fight is far from over, and the tension between privacy rules and deportation enforcement is not fading anytime soon.