Get your taxes done using TurboTax

If your mother's only income is Social Security then she does not even have to file a tax return at all.   And SNAP benefits are not income on any tax return.

Who has to file?

http://www.irs.gov/uac/Do-I-Need-to-File-a-Tax-Return%3F

**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**