Who Is Required to File a Connecticut Return?
You must file a Connecticut income tax return if your gross income for the taxable year exceeds:
$12,000 and you are filing separately;
$13,000 and you are filing single;
$19,000 and you are filing head of household; or
$24,000 and you are filing jointly or qualifying widow(er) with dependent child.
For additional information on filing if you meet any of the criteria below visit those pages: