Cooperation between the Internal Revenue Service and U.S. Immigration and Customs Enforcement would put some illegal immigrants is a difficult position, says one expert.

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

The IRS is close to finalizing an agreement with the Department of Homeland Security to help locate migrants suspected of being in the US illegally, a person familiar with the matter said, as President Donald Trump continues his hardline deportation push.