there are certain situations where your AGI can be below the standard deduction and still have to file. in chart A read about the definition of gross income. i have provided a link to the IRS instructions for who must file starting on page 8. look at charts A and C to see if any of these apply to you. if you don't meet any of the requirements to file save the $39
https://www.irs.gov/pub/irs-pdf/i1040gi.pdf
