2026 official-source estimate
Estimate 2026 Connecticut wage withholding from every Circular CT calculation table and include the covered CT Paid Leave employee contribution.
Quick answer
Connecticut: Estimate 2026 Connecticut wage withholding from every Circular CT calculation table and include the covered CT Paid Leave employee contribution. This 2026 calculator combines that state treatment with federal withholding and FICA, while showing supported employee-paid programs and known exclusions explicitly.
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Included
Limitations
Enter gross pay for one pay period, federal W-4 adjustments, and the state details shown above. Federal withholding follows Publication 15-T. Connecticut annualizes the paycheck, applies the Circular CT personal exemption for the selected CT-W4 code, calculates initial tax, adds the 2% phaseout and high-income recapture amounts, applies the personal tax credit, and returns the result to the pay period before CT-W4 Lines 2 and 3. CT Paid Leave is a separate 0.5% employee contribution through the 2026 Social Security wage base.
Example: At $1,000 of weekly wages and CT-W4 Code A, the complete Circular CT calculation produces $40.24 of Connecticut income-tax withholding. With no prior covered wages from the employer, the separate CT Paid Leave contribution is $5.00. The calculator does not assume any unentered benefit deduction or invent a tax result.
Weekly, biweekly, semimonthly, and monthly are the supported paycheck frequencies. “Annual salary” is an earnings input and the annual view is a simple period multiplication; neither is an annual payroll-period method. The special Form W-4 adjustment for nonresident aliens is not modeled.
Is Connecticut withholding a flat tax rate? No. Circular CT applies a code-specific personal exemption, progressive tax table, 2% add-back, high-income recapture, and personal tax credit before converting the result to one paycheck. CT Paid Leave is calculated separately, and a valid CT-W4 Code E income-tax exemption does not by itself remove that employee contribution.
State paycheck questions
Federal withholding follows Publication 15-T. Connecticut annualizes the paycheck, applies the Circular CT personal exemption for the selected CT-W4 code, calculates initial tax, adds the 2% phaseout and high-income recapture amounts, applies the personal tax credit, and returns the result to the pay period before CT-W4 Lines 2 and 3. CT Paid Leave is a separate 0.5% employee contribution through the 2026 Social Security wage base.
Included in this estimate: Federal income tax withholding; Social Security and Medicare; 2026 Circular CT personal exemptions, initial tax, 2% add-back, recapture, and personal tax credits; CT-W4 Codes A, B, C, D, E, and F plus Line 2 additional and Line 3 reduced withholding; 2026 CT Paid Leave employee contribution at 0.5% through the Social Security wage base.
Not included in this estimate: Nonresident wage allocation and convenience-of-the-employer sourcing; The married-couple supplemental adjustment table unless entered through CT-W4 Line 2 or 3; Private-plan contribution differences and coverage eligibility decisions; Supplemental-wage and bonus withholding methods.
Source trail
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