that you owed $0 is not the criteria for determining whether you need to file. it based on gross income and filing status
Chart A—For Most People
THEN file a return if your grossincome was at least . . .
Single
under 65 - $12,400
65 or older $14,050
Married filing jointly***
under 65 - $24,800
both spouses 65 or older - $27,400
one spouse 65 or older - $26,100
Married filing separately any age $5
Head of household
under 65 - $18,650
65 or older - $20,300
Qualifying widow(er)
under 65 - $24,800
65 or older $26,100
