What Are Some Legal Reasons a U.S. Immigrant May Be Deported?

As of 2015, legal reasons a U.S. immigrant may be deported include entering the United States illegally, violating the terms of his visa or the immigration laws, committing a crime, and failing to inform the U.S. Citizenship and Immigration Services about a change of address, reports AllLaw. Immigrants with green cards can also get deported if they receive government assistance after arriving in the United States.

Individuals who visit the United States as nonimmigrants should maintain a nonimmigrant status and comply with specific rules to avoid being deported, notes AllLaw. Those who come to the United States as tourists must not work during their stay. Immigrants who change their addresses have 10 days to notify the USCIS about the change.

Some of the crimes that serve as grounds for deportation of immigrants include fraud, firearms trafficking, money laundering and alien smuggling, states AllLaw. Aggravated felonies, terrorism, sabotage and espionage are other crimes that may result in the deportation of green card holders or nonimmigrants. Immigrants who engage in fake marriages or assist other aliens in entering the Untied States illegally may also be subject to deportation.

Before receiving green cards, immigrants must prove that they do not need financial assistance from the U.S. government, according to AllLaw. Typically, this proof comes from a petitioner or another sponsor who promises to support the immigrant financially during his stay. If within five years after entering the United States, green card holders turn out to be a public burden by receiving financial aid from the government based on need, they may become deportable if the cause for the financial need arose before they arrived in the country.