every year we give away millions of dollars in "refundable credits" for children / dependents who are not physically present in the U.S. The Mexicans can claim children in Mexico as per the tax treaties between the 2 countries. However, to receive the child tax credit & additional child tax credit, the child is supposed to be here living with the person who claimed them. Very, very often this is not the case ! We must re-do the W-7 to indicate when a child is here and when they are not here(physically present in the U.S). if you run a program comparing the codes for the two credits and x-reference that with ITIN's you will see just how much we are giving away. You may be surprised !
Idea No. 18869