"The IRS' improper disclosure of thousands of immigrants' personal information to the Department of Homeland Security fulfilled early warnings that the data-sharing deal between the agencies would put taxpayer data at risk. The IRS and DHS in April 2025 agreed to share data of immigrants to help with criminal investigations, subject to privacy law limitations. But the agency in a Wednesday court filing said it inappropriately overshared some immigrants' address information with DHS' Immigration and Customs Enforcement."
"ICE requested information from the IRS for individuals under non-tax criminal investigations, which is one of the exceptions to disclosure restrictions under Section 6103 of the Internal Revenue Code. Under the agreement between DHS and the IRS, the tax agency was essentially only able to match an individual's full address with its records if the address was first provided by ICE."
"After ICE requested 1.28 million addresses, the IRS was only able to verify 47,289 individuals. And for less than 5% of those verified, the IRS mistakenly provided ICE with additional address information where ICE had incomplete information."
The IRS and the Department of Homeland Security established a data-sharing arrangement in April 2025 to assist criminal investigations while being subject to privacy law limits. ICE requested 1.28 million addresses for individuals under non-tax criminal investigations, an exception under Section 6103. The IRS could match a full address only when ICE supplied the address first. The IRS verified 47,289 individuals from the requests. In a court filing the agency acknowledged it inappropriately overshared some immigrants' address information with ICE. For fewer than 5% of verified individuals, the IRS mistakenly provided additional address details where ICE's information had been incomplete.
Read at DataBreaches.Net
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