Illicit work is an illegal employment . The working contract is made without social security costs and without paying income taxes , making the work unreported employment . Illicit work is share of the informal economyor so called ” shadow economy “.
According to a New York Times report in February 2013, the Obama administration had demonstrated a new strategy to curb the employment of illegal immigrants by focusing on companies that hire them in the first place. By concentrating on the businesses employing the large numbers of illegal workers, the number of illegal immigrants working in the US would drop dramatically. The US government would be doing so in a few years. 
American Apparel incident
In 2009, American Apparel was convicted of having workers who partook in illicit work. About 1,800 of American Apparel employees were illegal immigrants who were not authorized to work in the United States . No federal agents stormed into the company’s factory asking the employees to be deported, but rather have a written statement that stated that American Apparel faced civilian fines and would have to fire all the workers who were unauthorized to be in the United States . [ Citation needed ]
- Unreported employment
- Jump up^ Preston, Julia. “US Shifts Strategy on Illicit Work by Immigrants” . The New York Times . Retrieved 8 February 2013 .