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Filing: IRS Mistakenly Shared Taxpayer Info With DHS

News comes amid deal between agencies to share info to identify, deport undocumented immigrants
By Newser Editors and Wire Services
Posted Feb 12, 2026 5:56 PM CST
Filing: IRS Mistakenly Shared Taxpayer Info With DHS
The exterior of the Internal Revenue Service building in Washington is seen March 22, 2013.   (AP Photo/Susan Walsh, file)

The IRS erroneously shared the taxpayer information of thousands of people with the Department of Homeland Security, as part of the agencies' controversial agreement to share information on immigrants for the purpose of identifying and deporting people who are illegally in the US, according to a new court filing. The revelation, initially reported by the Washington Post, stems from a data-sharing agreement signed last April by Treasury Secretary Scott Bessent and Homeland Security Secretary Kristi Noem, which allows Immigration and Customs Enforcement to submit names and addresses of immigrants who are inside the US illegally to the IRS for cross-verification against tax records, per the AP.

A declaration filed Wednesday by IRS Chief Risk and Control Officer Dottie Romo stated that the IRS was only able to verify roughly 47,000 of the 1.28 million names ICE requested. For less than 5 percent of those individuals, the IRS gave ICE additional address information, potentially violating privacy rules created to protect taxpayer data. Romo added that the Treasury notified DHS in January of the error and requested DHS' assistance in "promptly taking steps to remediate the matter consistent with federal law," which includes "appropriate disposal of any data provided to ICE by IRS based on incomplete or insufficient address information."

The IRS-DHS agreement set off litigation between advocacy groups and the federal government last year. Public Citizen filed a suit against Bessent, Noem, and their respective agencies on behalf of several immigrant rights groups shortly after the agreement was signed. Most recently, a Massachusetts federal court ordered the IRS to stop sharing residential addresses with ICE. Last November, a federal court also blocked the IRS from sharing information with DHS, saying the IRS illegally disseminated the tax data of some migrants.

Advocates fear the potentially unlawful release of taxpayer records could be used to maliciously target Americans, violate their privacy, and create other ramifications. Tom Bowman, policy counsel for the Center for Democracy and Technology, said that "the improper sharing of taxpayer data is unsafe, unlawful, and subject to serious criminal penalties." "Once taxpayer data is opened to immigration enforcement, mistakes are inevitable and the consequences fall on innocent people," Bowman said. "The disclosure of thousands of confidential records unfortunately shows precisely why strict legal firewalls exist and have—until now—been treated as an important guardrail."

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