<p>
See [Free</a> Tax Return Preparation for You by Volunteers](<a href=“http://www.irs.gov/Individuals/Free-Tax-Return-Preparation-for-You-by-Volunteers]Free”>http://www.irs.gov/Individuals/Free-Tax-Return-Preparation-for-You-by-Volunteers)
Find a VITA site near you, those IRS volunteer should be able to help your parents get ITIN and file tax returns.
However, they only open until April 15.</p>