Widow with a dependent child - Must I File?
Answer:
For the current year, If your filing status is qualifying widow with a dependent child and you are under 65 then your gross income must be at least $15,700 ($15,300 in 2011). If you are 65 or older then your gross income must be at least $16850 ($16,450 in 2011). Gross income does not include Social Security benefits.