Ct State Income Tax Rate 2025. The tax tables below include the tax rates, thresholds and. The withholding tax rate on mutual fund income for resident individuals has been set at 10%.however, if the annual income from mutual.
Connecticut’s 2025 income tax ranges from 3% to 6.99%. For tax years beginning on or after january 1, 2025, the connecticut income tax rate on the first $10,000 and $20,000 of connecticut income earned by single filers.
