The IRS is indeed building a computer system designed to share millions of taxpayers' confidential data with Immigration and Customs Enforcement (ICE), granting ICE unprecedented automated access to sensitive tax information.
IRS builds system to share millions of taxpayers’ data with ICE

FactVerify
Source: factverify.com
Key Evidence
ProPublica obtained a blueprint showing the IRS’s new system would give ICE automated access to millions of taxpayers’ confidential data, including home addresses.
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Government Executive and other outlets corroborate that this system creates an 'on demand' process for ICE to retrieve tax records.
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Unauthorized disclosure remains legally restricted, but this system formalizes data sharing under an agreement between IRS and ICE.
talkingpointsmemo.comtalkingpointsmemo.comThe IRS Is Building a Vast System to Share Millions of Taxpayers’ Data With ICE
What the Evidence Shows
The claim that the IRS is building a system to share millions of taxpayers’ data with ICE is supported by multiple credible investigative reports and official documents. The core factual components are: 1) The IRS is developing a new computer program; 2) This program will enable ICE to access confidential tax data; 3) The access will be broad and automated, including home addresses and other sensitive information.
ProPublica, a Pulitzer Prize-winning investigative newsroom, obtained a blueprint of this system showing it would create an 'on demand' process for ICE to retrieve taxpayer data en masse. This has been reported by multiple reputable sources including Government Executive and ProPublica itself, confirming the system’s scope and purpose. The system limits IRS officials’ ability to review the legality of each data transfer, effectively automating the sharing process.
While unauthorized disclosure of taxpayer information is generally a felony, this new system appears to formalize and expand data sharing under specific agreements between IRS and ICE. Some sources highlight concerns about privacy erosion and potential misuse, but these do not negate the factual existence and construction of the system. Thus, the claim is accurate in all material respects based on available evidence.