People who push for more and tougher anti-illegal alien laws often assert that undocumented workers in the US pay no taxes yet receive a disproportionate amount of support from federal and state relief programs. Nothing could be farther from the truth. One of the biggest illegal immigrations pros is that these workers do in fact pay taxes but do not, as a whole, take part in such programs.
Despite the popular misconception that illegal aliens do not pay taxes, the truth is that the Internal Revenue Service gathered almost $305 million in taxes in 2001 from people who filed using an Individual Tax Identification Number (ITIN). The ITIN is a special number given to those who do not have Social Security numbers but need to file taxes. That is what illegal aliens commonly use to pay their taxes.
Of course, undocumented workers are also paying sales taxes whenever they buy something, just as legal residents and citizens do. They also pay $7 billion in Social Security taxes every year even though they cannot benefit from Social Security programs. In reality, Social Security is kept afloat and working to a certain extent through the contributions of illegal immigrants.
The idea that illegal aliens are getting food stamps or benefiting from Medicaid, Medicare and Social Security programs is also untrue. Undocumented immigrants are barred from taking part in most federal, state and local aid programs. Some exceptions: illegal workers do benefit from free public schooling for their children and are eligible for short-term disaster relief.

So what are some other illegal immigration pros?
These workers contribute to the American economy by complementing rather than replacing the US workforce. In many areas of the US there is a shortage of labor for low-paying or unskilled jobs. These are the jobs commonly filled by illegal aliens (most of whom are from Mexico), freeing up the local labor pool for better paying jobs.
Even with the recession, for example, Texas business owners state that it is still quite difficult to hire labor for certain tasks. To cite another example, Arizona lettuce farms will need 40,000 people to hand-pick their produce each year – a huge labor force that the area simply doesn’t have if the owners only look for local workers.
Some even say that if there were no undocumented workers available in the US, many businesses that need a large labor force would be forced to move their production overseas.
Unauthorized workers therefore contribute to the local labor force in a complementary way. Rather than replacing the local labor pool or competing with locals for jobs, the illegal workers make possible the affluent lifestyle of the local residents.
The real question is whether the illegal immigration pros outweigh the cons. Regarding the labor force, illegal workers also play a big role in providing a readily available work force for local businesses. As far as taxes and benefits are concerned, the picture is quite clear. Unauthorized workers pay more in taxes than they take out in the form of government services, due to their ineligibility for most services.