All U.S. employers need to complete Form I-9 for every foreign worker they hire for employment in the United States. This includes US citizens and foreigners.

The tax code has a hidden bias against hiring US citizens by Jay A. Soled and Timothy M. Todd, opinion contributors - 06/26/25 1:30 PM ET ...

To lawfully work in the US, a non-citizen needs to secure employment authorization. ... U.S. Citizenship and Immigration Services published a revised version of Form I-9, Employment Eligibility ...