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Connecticut Income Tax Guide

2% to 6.99% bracketsThe 2026 schedule varies its taxable-income thresholds by filing status.
Personal exemptions phase outThe exemption declines in $1,000 steps as Connecticut adjusted gross income rises.
Add-back and recapture can applyConnecticut's 2% phase-out add-back, recapture, and personal tax credit are outside the simplified result.
Official Sources2026 CT worksheetCT tax informationCT formsIRS
2026 CT worksheetCT tax informationCT formsIRS
Calculate for Connecticut

How Connecticut taxes work

Connecticut AGI begins with federal AGIState additions and subtractions can change the amount before exemptions and rates are applied.
The personal exemption is income-sensitiveThe calculator implements the 2026 status-based maximum and $1,000-step phaseout from the official worksheet.
Status-specific brackets are usedSingle/separate, joint, and head-of-household schedules are modeled without mechanically scaling one schedule.
Three refinements are excludedThe 2% phase-out add-back, high-income tax recapture, and personal tax credit require detailed worksheet tables and are not included.
Other credits can change the resultProperty-tax, earned-income, and other Connecticut credits need facts beyond this quick estimate.

Common Connecticut tax questions

Does 6.99% apply to all Connecticut income?No. It is the highest marginal rate; lower taxable-income bands use lower percentages.
Is the personal exemption always $15,000?No. Its maximum depends on filing status and it phases out as Connecticut AGI rises.
Why can a filed return differ?The official calculation includes a 2% add-back, recapture, and personal tax credit that the calculator clearly excludes.
Are pension and Social Security subtractions included?No. Eligibility and phaseouts depend on income type and thresholds not collected here.
Is a local Connecticut wage tax added?No broad local individual wage tax is added by this preset.
Is this Form CT-1040?No. It is a full-year resident planning estimate, not a complete Connecticut return.