E-Verify is a federally designed and managed system which employers use to check if a job applicant is authorized to work in the U.S. It checks for whether the social security number is valid and does a few other checks (thus it can be fooled by a borrowed SS number).
Starting around 2007, federal contractors and, later, employers in several states were required to use the system. Otherwise, employers such as Trump properties use it voluntarily. The ACLU and other oppose its use. Criticisms are made that it is mis-designed and ineffective. Here I present some basic facts about its use.
The first graph shows, 2006 – 2018, the number of e-Verify checks in each year, the estimated number of unauthorized workers in the country, and the number of times when e-Verify made a final confirmation that the person was not authorized to work – was rejected –and presumably was not hired.
The second graph shows rejections as a percentage of the estimated size of the unauthorized workforce. This percentage is very small – just over 4% in 2018.
Data from here.