Ct Income Taxes 2024. Anyone with an income over the $150,000 threshold ($300,000 for couples) will not see a reduction in their state income taxes as a result of the 2024 changes. Underpayment of estimated income tax by individuals, trusts, and estates.

Most connecticut taxpayers can use the connecticut department of revenue services online tax filing portal myconnect to file and pay their connecticut individual. The legislation is effective july 1, 2024, and applicable to taxable and income years commencing on or after january 1, 2024.