Generally, a single person needs to file taxes when their income is over $9,500 approximately ($6,000 deduction and $3,500 personal exemption). Some disability income is tax exempt. She can be deported for committing a tax crime but merely failure to file doesn't usually constitute a crime. She should get the assistance of a tax attorney or CPA, to handle this.
Answered on Apr 11th, 2014 at 10:39 AM