How do you obtain an IRS pin number for an undocumented alien?

Answer 1

here is some helpful information about how to get an ITIN :

http://www.irs.gov/individuals/article/0,,id=96287,00.html#revised

an ITIN is not to be used for work purposes but it is for federal income tax purposes only .

if u would like to go in person u can find a agency in the fallowing map anywhere in the USA by clicking on the state in which u live :
http://www.irs.gov/localcontacts/index.html

Answer 2

Go to irs.gov and fill out an application. Very easy, you can do it on-line. Although it's not necessarily for undocumented aliens, it's for someone without a social.

Answer 3

get documented first please. it will make it so much better for you. but if need be, and there is much need, do it by any means possible.