Depending on your filing status and income threshold will tell you if you even need to file. However, even if you are not required to file taxes, it may be advantageous to file so you can get a refund of the taxes you had withheld out of your paycheck. In addition, you may be eligible for tax credits.
Must file if gross income is at least:
Single: Under 65 yrs old ----------------------------------- $12,200
65 or older ------------------------------------------ $13,850
Married Filing Jointly: Both under 65 yrs------------- $24,400
One spouse 65 or older--------$25,700
Both spouses 65 or older----- $27,000
Head of Household: Under 65-----------------------$18,350
65 or older----------------------$20,000
Qualifying Widow(er): Under 65-----------------------$24,400
65 or older---------------------$25,700