Newsweek has contacted the IRS for further comment. Why It Matters. Undocumented immigrants can file taxes and register with the IRS, which is legally required to keep their infor

No matter their legal status, immigrants are required to pay taxes the same as U.S. citizens. Rather than filing with a Social Security number, noncitizens can apply for an individual taxpayer identification number, or ITIN, through the IRS to file their taxes.

A person familiar with the matter says it would enable ICE to submit names and addresses of people who might be in the U.S. illegally. The source says the IRS could then cross-reference and confirm that information. The goal of the partnership appears to be speeding up President Donald Trump’s deportation efforts.