A federal judge is refusing to block the IRS from sharing immigrants' tax data with Immigration and Customs Enforcement for the purpose of identifying and deporting people illegally in the U.S.

The IRS can share confidential taxpayer information with the Department of Homeland Security to help identify and deport ...

Advocates, however, say the IRS-DHS information-sharing ... to block the Internal Revenue Service from sharing immigrants’ tax data with Immigration and Customs Enforcement for the purpose ...

Under the data-sharing deal, DHS can ask the IRS to confirm the addresses of ... information between federal agencies to enforce immigration laws does not violate confidentiality laws.